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infrastructure/clusters/cl01tl/manifests/traefik/CustomResourceDefinition-httproutes.gateway.networking.k8s.io.yaml
gitea-bot 0c44011d82 Automated Manifest Update (#2724)
This PR contains newly rendered Kubernetes manifests automatically generated by the CI workflow.

Reviewed-on: #2724
Co-authored-by: gitea-bot <gitea-bot@alexlebens.net>
Co-committed-by: gitea-bot <gitea-bot@alexlebens.net>
2025-12-20 00:45:21 +00:00

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506 KiB
YAML

apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
api-approved.kubernetes.io: https://github.com/kubernetes-sigs/gateway-api/pull/3328
app.kubernetes.io/managed-by: Helm
gateway.networking.k8s.io/bundle-version: v1.4.0
gateway.networking.k8s.io/channel: experimental
helm.sh/resource-policy: keep
labels:
app.kubernetes.io/managed-by: Helm
name: httproutes.gateway.networking.k8s.io
spec:
group: gateway.networking.k8s.io
names:
categories:
- gateway-api
kind: HTTPRoute
listKind: HTTPRouteList
plural: httproutes
singular: httproute
scope: Namespaced
versions:
- additionalPrinterColumns:
- jsonPath: .spec.hostnames
name: Hostnames
type: string
- jsonPath: .metadata.creationTimestamp
name: Age
type: date
name: v1
schema:
openAPIV3Schema:
description: |-
HTTPRoute provides a way to route HTTP requests. This includes the capability
to match requests by hostname, path, header, or query param. Filters can be
used to specify additional processing steps. Backends specify where matching
requests should be routed.
properties:
apiVersion:
description: |-
APIVersion defines the versioned schema of this representation of an object.
Servers should convert recognized schemas to the latest internal value, and
may reject unrecognized values.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
type: string
kind:
description: |-
Kind is a string value representing the REST resource this object represents.
Servers may infer this from the endpoint the client submits requests to.
Cannot be updated.
In CamelCase.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
type: string
metadata:
type: object
spec:
description: Spec defines the desired state of HTTPRoute.
properties:
hostnames:
description: |-
Hostnames defines a set of hostnames that should match against the HTTP Host
header to select a HTTPRoute used to process the request. Implementations
MUST ignore any port value specified in the HTTP Host header while
performing a match and (absent of any applicable header modification
configuration) MUST forward this header unmodified to the backend.
Valid values for Hostnames are determined by RFC 1123 definition of a
hostname with 2 notable exceptions:
1. IPs are not allowed.
2. A hostname may be prefixed with a wildcard label (`*.`). The wildcard
label must appear by itself as the first label.
If a hostname is specified by both the Listener and HTTPRoute, there
must be at least one intersecting hostname for the HTTPRoute to be
attached to the Listener. For example:
* A Listener with `test.example.com` as the hostname matches HTTPRoutes
that have either not specified any hostnames, or have specified at
least one of `test.example.com` or `*.example.com`.
* A Listener with `*.example.com` as the hostname matches HTTPRoutes
that have either not specified any hostnames or have specified at least
one hostname that matches the Listener hostname. For example,
`*.example.com`, `test.example.com`, and `foo.test.example.com` would
all match. On the other hand, `example.com` and `test.example.net` would
not match.
Hostnames that are prefixed with a wildcard label (`*.`) are interpreted
as a suffix match. That means that a match for `*.example.com` would match
both `test.example.com`, and `foo.test.example.com`, but not `example.com`.
If both the Listener and HTTPRoute have specified hostnames, any
HTTPRoute hostnames that do not match the Listener hostname MUST be
ignored. For example, if a Listener specified `*.example.com`, and the
HTTPRoute specified `test.example.com` and `test.example.net`,
`test.example.net` must not be considered for a match.
If both the Listener and HTTPRoute have specified hostnames, and none
match with the criteria above, then the HTTPRoute is not accepted. The
implementation must raise an 'Accepted' Condition with a status of
`False` in the corresponding RouteParentStatus.
In the event that multiple HTTPRoutes specify intersecting hostnames (e.g.
overlapping wildcard matching and exact matching hostnames), precedence must
be given to rules from the HTTPRoute with the largest number of:
* Characters in a matching non-wildcard hostname.
* Characters in a matching hostname.
If ties exist across multiple Routes, the matching precedence rules for
HTTPRouteMatches takes over.
Support: Core
items:
description: |-
Hostname is the fully qualified domain name of a network host. This matches
the RFC 1123 definition of a hostname with 2 notable exceptions:
1. IPs are not allowed.
2. A hostname may be prefixed with a wildcard label (`*.`). The wildcard
label must appear by itself as the first label.
Hostname can be "precise" which is a domain name without the terminating
dot of a network host (e.g. "foo.example.com") or "wildcard", which is a
domain name prefixed with a single wildcard label (e.g. `*.example.com`).
Note that as per RFC1035 and RFC1123, a *label* must consist of lower case
alphanumeric characters or '-', and must start and end with an alphanumeric
character. No other punctuation is allowed.
maxLength: 253
minLength: 1
pattern: ^(\*\.)?[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
maxItems: 16
type: array
x-kubernetes-list-type: atomic
parentRefs:
description: |-
ParentRefs references the resources (usually Gateways) that a Route wants
to be attached to. Note that the referenced parent resource needs to
allow this for the attachment to be complete. For Gateways, that means
the Gateway needs to allow attachment from Routes of this kind and
namespace. For Services, that means the Service must either be in the same
namespace for a "producer" route, or the mesh implementation must support
and allow "consumer" routes for the referenced Service. ReferenceGrant is
not applicable for governing ParentRefs to Services - it is not possible to
create a "producer" route for a Service in a different namespace from the
Route.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
This API may be extended in the future to support additional kinds of parent
resources.
ParentRefs must be _distinct_. This means either that:
* They select different objects. If this is the case, then parentRef
entries are distinct. In terms of fields, this means that the
multi-part key defined by `group`, `kind`, `namespace`, and `name` must
be unique across all parentRef entries in the Route.
* They do not select different objects, but for each optional field used,
each ParentRef that selects the same object must set the same set of
optional fields to different values. If one ParentRef sets a
combination of optional fields, all must set the same combination.
Some examples:
* If one ParentRef sets `sectionName`, all ParentRefs referencing the
same object must also set `sectionName`.
* If one ParentRef sets `port`, all ParentRefs referencing the same
object must also set `port`.
* If one ParentRef sets `sectionName` and `port`, all ParentRefs
referencing the same object must also set `sectionName` and `port`.
It is possible to separately reference multiple distinct objects that may
be collapsed by an implementation. For example, some implementations may
choose to merge compatible Gateway Listeners together. If that is the
case, the list of routes attached to those resources should also be
merged.
Note that for ParentRefs that cross namespace boundaries, there are specific
rules. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example,
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable other kinds of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
items:
description: |-
ParentReference identifies an API object (usually a Gateway) that can be considered
a parent of this resource (usually a route). There are two kinds of parent resources
with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
This API may be extended in the future to support additional kinds of parent
resources.
The API object must be valid in the cluster; the Group and Kind must
be registered in the cluster for this reference to be valid.
properties:
group:
default: gateway.networking.k8s.io
description: |-
Group is the group of the referent.
When unspecified, "gateway.networking.k8s.io" is inferred.
To set the core API group (such as for a "Service" kind referent),
Group must be explicitly set to "" (empty string).
Support: Core
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Gateway
description: |-
Kind is kind of the referent.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
Support for other resources is Implementation-Specific.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: |-
Name is the name of the referent.
Support: Core
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the referent. When unspecified, this refers
to the local namespace of the Route.
Note that there are specific rules for ParentRefs which cross namespace
boundaries. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example:
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable any other kind of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port is the network port this Route targets. It can be interpreted
differently based on the type of parent resource.
When the parent resource is a Gateway, this targets all listeners
listening on the specified port that also support this kind of Route(and
select this Route). It's not recommended to set `Port` unless the
networking behaviors specified in a Route must apply to a specific port
as opposed to a listener(s) whose port(s) may be changed. When both Port
and SectionName are specified, the name and port of the selected listener
must match both specified values.
When the parent resource is a Service, this targets a specific port in the
Service spec. When both Port (experimental) and SectionName are specified,
the name and port of the selected port must match both specified values.
Implementations MAY choose to support other parent resources.
Implementations supporting other types of parent resources MUST clearly
document how/if Port is interpreted.
For the purpose of status, an attachment is considered successful as
long as the parent resource accepts it partially. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment
from the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route,
the Route MUST be considered detached from the Gateway.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
sectionName:
description: |-
SectionName is the name of a section within the target resource. In the
following resources, SectionName is interpreted as the following:
* Gateway: Listener name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
* Service: Port name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
Implementations MAY choose to support attaching Routes to other resources.
If that is the case, they MUST clearly document how SectionName is
interpreted.
When unspecified (empty string), this will reference the entire resource.
For the purpose of status, an attachment is considered successful if at
least one section in the parent resource accepts it. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from
the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route, the
Route MUST be considered detached from the Gateway.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
maxItems: 32
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: sectionName or port must be specified when parentRefs includes 2 or more references to the same parent
rule: 'self.all(p1, self.all(p2, p1.group == p2.group && p1.kind == p2.kind && p1.name == p2.name && (((!has(p1.__namespace__) || p1.__namespace__ == '''') && (!has(p2.__namespace__) || p2.__namespace__ == '''')) || (has(p1.__namespace__) && has(p2.__namespace__) && p1.__namespace__ == p2.__namespace__)) ? ((!has(p1.sectionName) || p1.sectionName == '''') == (!has(p2.sectionName) || p2.sectionName == '''') && (!has(p1.port) || p1.port == 0) == (!has(p2.port) || p2.port == 0)): true))'
- message: sectionName or port must be unique when parentRefs includes 2 or more references to the same parent
rule: self.all(p1, self.exists_one(p2, p1.group == p2.group && p1.kind == p2.kind && p1.name == p2.name && (((!has(p1.__namespace__) || p1.__namespace__ == '') && (!has(p2.__namespace__) || p2.__namespace__ == '')) || (has(p1.__namespace__) && has(p2.__namespace__) && p1.__namespace__ == p2.__namespace__ )) && (((!has(p1.sectionName) || p1.sectionName == '') && (!has(p2.sectionName) || p2.sectionName == '')) || ( has(p1.sectionName) && has(p2.sectionName) && p1.sectionName == p2.sectionName)) && (((!has(p1.port) || p1.port == 0) && (!has(p2.port) || p2.port == 0)) || (has(p1.port) && has(p2.port) && p1.port == p2.port))))
rules:
default:
- matches:
- path:
type: PathPrefix
value: /
description: Rules are a list of HTTP matchers, filters and actions.
items:
description: |-
HTTPRouteRule defines semantics for matching an HTTP request based on
conditions (matches), processing it (filters), and forwarding the request to
an API object (backendRefs).
properties:
backendRefs:
description: |-
BackendRefs defines the backend(s) where matching requests should be
sent.
Failure behavior here depends on how many BackendRefs are specified and
how many are invalid.
If *all* entries in BackendRefs are invalid, and there are also no filters
specified in this route rule, *all* traffic which matches this rule MUST
receive a 500 status code.
See the HTTPBackendRef definition for the rules about what makes a single
HTTPBackendRef invalid.
When a HTTPBackendRef is invalid, 500 status codes MUST be returned for
requests that would have otherwise been routed to an invalid backend. If
multiple backends are specified, and some are invalid, the proportion of
requests that would otherwise have been routed to an invalid backend
MUST receive a 500 status code.
For example, if two backends are specified with equal weights, and one is
invalid, 50 percent of traffic must receive a 500. Implementations may
choose how that 50 percent is determined.
When a HTTPBackendRef refers to a Service that has no ready endpoints,
implementations SHOULD return a 503 for requests to that backend instead.
If an implementation chooses to do this, all of the above rules for 500 responses
MUST also apply for responses that return a 503.
Support: Core for Kubernetes Service
Support: Extended for Kubernetes ServiceImport
Support: Implementation-specific for any other resource
Support for weight: Core
items:
description: |-
HTTPBackendRef defines how a HTTPRoute forwards a HTTP request.
Note that when a namespace different than the local namespace is specified, a
ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
When the BackendRef points to a Kubernetes Service, implementations SHOULD
honor the appProtocol field if it is set for the target Service Port.
Implementations supporting appProtocol SHOULD recognize the Kubernetes
Standard Application Protocols defined in KEP-3726.
If a Service appProtocol isn't specified, an implementation MAY infer the
backend protocol through its own means. Implementations MAY infer the
protocol from the Route type referring to the backend Service.
If a Route is not able to send traffic to the backend using the specified
protocol then the backend is considered invalid. Implementations MUST set the
"ResolvedRefs" condition to "False" with the "UnsupportedProtocol" reason.
properties:
filters:
description: |-
Filters defined at this level should be executed if and only if the
request is being forwarded to the backend defined here.
Support: Implementation-specific (For broader support of filters, use the
Filters field in HTTPRouteRule.)
items:
description: |-
HTTPRouteFilter defines processing steps that must be completed during the
request or response lifecycle. HTTPRouteFilters are meant as an extension
point to express processing that may be done in Gateway implementations. Some
examples include request or response modification, implementing
authentication strategies, rate-limiting, and traffic shaping. API
guarantee/conformance is defined based on the type of the filter.
properties:
cors:
description: |-
CORS defines a schema for a filter that responds to the
cross-origin request based on HTTP response header.
Support: Extended
properties:
allowCredentials:
description: |-
AllowCredentials indicates whether the actual cross-origin request allows
to include credentials.
When set to true, the gateway will include the `Access-Control-Allow-Credentials`
response header with value true (case-sensitive).
When set to false or omitted the gateway will omit the header
`Access-Control-Allow-Credentials` entirely (this is the standard CORS
behavior).
Support: Extended
type: boolean
allowHeaders:
description: |-
AllowHeaders indicates which HTTP request headers are supported for
accessing the requested resource.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Allow-Headers`
response header are separated by a comma (",").
When the `AllowHeaders` field is configured with one or more headers, the
gateway must return the `Access-Control-Allow-Headers` response header
which value is present in the `AllowHeaders` field.
If any header name in the `Access-Control-Request-Headers` request header
is not included in the list of header names specified by the response
header `Access-Control-Allow-Headers`, it will present an error on the
client side.
If any header name in the `Access-Control-Allow-Headers` response header
does not recognize by the client, it will also occur an error on the
client side.
A wildcard indicates that the requests with all HTTP headers are allowed.
The `Access-Control-Allow-Headers` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowHeaders` field
specified with the `*` wildcard, the gateway must specify one or more
HTTP headers in the value of the `Access-Control-Allow-Headers` response
header. The value of the header `Access-Control-Allow-Headers` is same as
the `Access-Control-Request-Headers` header provided by the client. If
the header `Access-Control-Request-Headers` is not included in the
request, the gateway will omit the `Access-Control-Allow-Headers`
response header, instead of specifying the `*` wildcard. A Gateway
implementation may choose to add implementation-specific default headers.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
allowMethods:
description: |-
AllowMethods indicates which HTTP methods are supported for accessing the
requested resource.
Valid values are any method defined by RFC9110, along with the special
value `*`, which represents all HTTP methods are allowed.
Method names are case sensitive, so these values are also case-sensitive.
(See https://www.rfc-editor.org/rfc/rfc2616#section-5.1.1)
Multiple method names in the value of the `Access-Control-Allow-Methods`
response header are separated by a comma (",").
A CORS-safelisted method is a method that is `GET`, `HEAD`, or `POST`.
(See https://fetch.spec.whatwg.org/#cors-safelisted-method) The
CORS-safelisted methods are always allowed, regardless of whether they
are specified in the `AllowMethods` field.
When the `AllowMethods` field is configured with one or more methods, the
gateway must return the `Access-Control-Allow-Methods` response header
which value is present in the `AllowMethods` field.
If the HTTP method of the `Access-Control-Request-Method` request header
is not included in the list of methods specified by the response header
`Access-Control-Allow-Methods`, it will present an error on the client
side.
The `Access-Control-Allow-Methods` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowMethods` field
specified with the `*` wildcard, the gateway must specify one HTTP method
in the value of the Access-Control-Allow-Methods response header. The
value of the header `Access-Control-Allow-Methods` is same as the
`Access-Control-Request-Method` header provided by the client. If the
header `Access-Control-Request-Method` is not included in the request,
the gateway will omit the `Access-Control-Allow-Methods` response header,
instead of specifying the `*` wildcard. A Gateway implementation may
choose to add implementation-specific default methods.
Support: Extended
items:
enum:
- GET
- HEAD
- POST
- PUT
- DELETE
- CONNECT
- OPTIONS
- TRACE
- PATCH
- '*'
type: string
maxItems: 9
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowMethods cannot contain '*' alongside other methods
rule: '!(''*'' in self && self.size() > 1)'
allowOrigins:
description: |-
AllowOrigins indicates whether the response can be shared with requested
resource from the given `Origin`.
The `Origin` consists of a scheme and a host, with an optional port, and
takes the form `<scheme>://<host>(:<port>)`.
Valid values for scheme are: `http` and `https`.
Valid values for port are any integer between 1 and 65535 (the list of
available TCP/UDP ports). Note that, if not included, port `80` is
assumed for `http` scheme origins, and port `443` is assumed for `https`
origins. This may affect origin matching.
The host part of the origin may contain the wildcard character `*`. These
wildcard characters behave as follows:
* `*` is a greedy match to the _left_, including any number of
DNS labels to the left of its position. This also means that
`*` will include any number of period `.` characters to the
left of its position.
* A wildcard by itself matches all hosts.
An origin value that includes _only_ the `*` character indicates requests
from all `Origin`s are allowed.
When the `AllowOrigins` field is configured with multiple origins, it
means the server supports clients from multiple origins. If the request
`Origin` matches the configured allowed origins, the gateway must return
the given `Origin` and sets value of the header
`Access-Control-Allow-Origin` same as the `Origin` header provided by the
client.
The status code of a successful response to a "preflight" request is
always an OK status (i.e., 204 or 200).
If the request `Origin` does not match the configured allowed origins,
the gateway returns 204/200 response but doesn't set the relevant
cross-origin response headers. Alternatively, the gateway responds with
403 status to the "preflight" request is denied, coupled with omitting
the CORS headers. The cross-origin request fails on the client side.
Therefore, the client doesn't attempt the actual cross-origin request.
The `Access-Control-Allow-Origin` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowOrigins` field
specified with the `*` wildcard, the gateway must return a single origin
in the value of the `Access-Control-Allow-Origin` response header,
instead of specifying the `*` wildcard. The value of the header
`Access-Control-Allow-Origin` is same as the `Origin` header provided by
the client.
Support: Extended
items:
description: |-
The CORSOrigin MUST NOT be a relative URI, and it MUST follow the URI syntax and
encoding rules specified in RFC3986. The CORSOrigin MUST include both a
scheme (e.g., "http" or "spiffe") and a scheme-specific-part, or it should be a single '*' character.
URIs that include an authority MUST include a fully qualified domain name or
IP address as the host.
maxLength: 253
minLength: 1
pattern: (^\*$)|(^([a-zA-Z][a-zA-Z0-9+\-.]+):\/\/([^:/?#]+)(:([0-9]{1,5}))?$)
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowOrigins cannot contain '*' alongside other origins
rule: '!(''*'' in self && self.size() > 1)'
exposeHeaders:
description: |-
ExposeHeaders indicates which HTTP response headers can be exposed
to client-side scripts in response to a cross-origin request.
A CORS-safelisted response header is an HTTP header in a CORS response
that it is considered safe to expose to the client scripts.
The CORS-safelisted response headers include the following headers:
`Cache-Control`
`Content-Language`
`Content-Length`
`Content-Type`
`Expires`
`Last-Modified`
`Pragma`
(See https://fetch.spec.whatwg.org/#cors-safelisted-response-header-name)
The CORS-safelisted response headers are exposed to client by default.
When an HTTP header name is specified using the `ExposeHeaders` field,
this additional header will be exposed as part of the response to the
client.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Expose-Headers`
response header are separated by a comma (",").
A wildcard indicates that the responses with all HTTP headers are exposed
to clients. The `Access-Control-Expose-Headers` response header can only
use `*` wildcard as value when the `AllowCredentials` field is false or omitted.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
maxAge:
default: 5
description: |-
MaxAge indicates the duration (in seconds) for the client to cache the
results of a "preflight" request.
The information provided by the `Access-Control-Allow-Methods` and
`Access-Control-Allow-Headers` response headers can be cached by the
client until the time specified by `Access-Control-Max-Age` elapses.
The default value of `Access-Control-Max-Age` response header is 5
(seconds).
format: int32
minimum: 1
type: integer
type: object
extensionRef:
description: |-
ExtensionRef is an optional, implementation-specific extension to the
"filter" behavior. For example, resource "myroutefilter" in group
"networking.example.net"). ExtensionRef MUST NOT be used for core and
extended filters.
This filter can be used multiple times within the same rule.
Support: Implementation-specific
properties:
group:
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is kind of the referent. For example "HTTPRoute" or "Service".
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
required:
- group
- kind
- name
type: object
externalAuth:
description: |-
ExternalAuth configures settings related to sending request details
to an external auth service. The external service MUST authenticate
the request, and MAY authorize the request as well.
If there is any problem communicating with the external service,
this filter MUST fail closed.
Support: Extended
properties:
backendRef:
description: |-
BackendRef is a reference to a backend to send authorization
requests to.
The backend must speak the selected protocol (GRPC or HTTP) on the
referenced port.
If the backend service requires TLS, use BackendTLSPolicy to tell the
implementation to supply the TLS details to be used to connect to that
backend.
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
forwardBody:
description: |-
ForwardBody controls if requests to the authorization server should include
the body of the client request; and if so, how big that body is allowed
to be.
It is expected that implementations will buffer the request body up to
`forwardBody.maxSize` bytes. Bodies over that size must be rejected with a
4xx series error (413 or 403 are common examples), and fail processing
of the filter.
If unset, or `forwardBody.maxSize` is set to `0`, then the body will not
be forwarded.
Feature Name: HTTPRouteExternalAuthForwardBody
properties:
maxSize:
description: |-
MaxSize specifies how large in bytes the largest body that will be buffered
and sent to the authorization server. If the body size is larger than
`maxSize`, then the body sent to the authorization server must be
truncated to `maxSize` bytes.
Experimental note: This behavior needs to be checked against
various dataplanes; it may need to be changed.
See https://github.com/kubernetes-sigs/gateway-api/pull/4001#discussion_r2291405746
for more.
If 0, the body will not be sent to the authorization server.
type: integer
type: object
grpc:
description: |-
GRPCAuthConfig contains configuration for communication with ext_authz
protocol-speaking backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what headers from the client request
will be sent to the authorization server.
If this list is empty, then all headers must be sent.
If the list has entries, only those entries must be sent.
items:
type: string
type: array
x-kubernetes-list-type: set
type: object
http:
description: |-
HTTPAuthConfig contains configuration for communication with HTTP-speaking
backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what additional headers from the client request
will be sent to the authorization server.
The following headers must always be sent to the authorization server,
regardless of this setting:
* `Host`
* `Method`
* `Path`
* `Content-Length`
* `Authorization`
If this list is empty, then only those headers must be sent.
Note that `Content-Length` has a special behavior, in that the length
sent must be correct for the actual request to the external authorization
server - that is, it must reflect the actual number of bytes sent in the
body of the request to the authorization server.
So if the `forwardBody` stanza is unset, or `forwardBody.maxSize` is set
to `0`, then `Content-Length` must be `0`. If `forwardBody.maxSize` is set
to anything other than `0`, then the `Content-Length` of the authorization
request must be set to the actual number of bytes forwarded.
items:
type: string
type: array
x-kubernetes-list-type: set
allowedResponseHeaders:
description: |-
AllowedResponseHeaders specifies what headers from the authorization response
will be copied into the request to the backend.
If this list is empty, then all headers from the authorization server
except Authority or Host must be copied.
items:
type: string
type: array
x-kubernetes-list-type: set
path:
description: |-
Path sets the prefix that paths from the client request will have added
when forwarded to the authorization server.
When empty or unspecified, no prefix is added.
Valid values are the same as the "value" regex for path values in the `match`
stanza, and the validation regex will screen out invalid paths in the same way.
Even with the validation, implementations MUST sanitize this input before using it
directly.
maxLength: 1024
pattern: ^(?:[-A-Za-z0-9/._~!$&'()*+,;=:@]|[%][0-9a-fA-F]{2})+$
type: string
type: object
protocol:
description: |-
ExternalAuthProtocol describes which protocol to use when communicating with an
ext_authz authorization server.
When this is set to GRPC, each backend must use the Envoy ext_authz protocol
on the port specified in `backendRefs`. Requests and responses are defined
in the protobufs explained at:
https://www.envoyproxy.io/docs/envoy/latest/api-v3/service/auth/v3/external_auth.proto
When this is set to HTTP, each backend must respond with a `200` status
code in on a successful authorization. Any other code is considered
an authorization failure.
Feature Names:
GRPC Support - HTTPRouteExternalAuthGRPC
HTTP Support - HTTPRouteExternalAuthHTTP
enum:
- HTTP
- GRPC
type: string
required:
- backendRef
- protocol
type: object
x-kubernetes-validations:
- message: grpc must be specified when protocol is set to 'GRPC'
rule: 'self.protocol == ''GRPC'' ? has(self.grpc) : true'
- message: protocol must be 'GRPC' when grpc is set
rule: 'has(self.grpc) ? self.protocol == ''GRPC'' : true'
- message: http must be specified when protocol is set to 'HTTP'
rule: 'self.protocol == ''HTTP'' ? has(self.http) : true'
- message: protocol must be 'HTTP' when http is set
rule: 'has(self.http) ? self.protocol == ''HTTP'' : true'
requestHeaderModifier:
description: |-
RequestHeaderModifier defines a schema for a filter that modifies request
headers.
Support: Core
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
requestMirror:
description: |-
RequestMirror defines a schema for a filter that mirrors requests.
Requests are sent to the specified destination, but responses from
that destination are ignored.
This filter can be used multiple times within the same rule. Note that
not all implementations will be able to support mirroring to multiple
backends.
Support: Extended
properties:
backendRef:
description: |-
BackendRef references a resource where mirrored requests are sent.
Mirrored requests must be sent only to a single destination endpoint
within this BackendRef, irrespective of how many endpoints are present
within this BackendRef.
If the referent cannot be found, this BackendRef is invalid and must be
dropped from the Gateway. The controller must ensure the "ResolvedRefs"
condition on the Route status is set to `status: False` and not configure
this backend in the underlying implementation.
If there is a cross-namespace reference to an *existing* object
that is not allowed by a ReferenceGrant, the controller must ensure the
"ResolvedRefs" condition on the Route is set to `status: False`,
with the "RefNotPermitted" reason and not configure this backend in the
underlying implementation.
In either error case, the Message of the `ResolvedRefs` Condition
should be used to provide more detail about the problem.
Support: Extended for Kubernetes Service
Support: Implementation-specific for any other resource
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
fraction:
description: |-
Fraction represents the fraction of requests that should be
mirrored to BackendRef.
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
properties:
denominator:
default: 100
format: int32
minimum: 1
type: integer
numerator:
format: int32
minimum: 0
type: integer
required:
- numerator
type: object
x-kubernetes-validations:
- message: numerator must be less than or equal to denominator
rule: self.numerator <= self.denominator
percent:
description: |-
Percent represents the percentage of requests that should be
mirrored to BackendRef. Its minimum value is 0 (indicating 0% of
requests) and its maximum value is 100 (indicating 100% of requests).
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
format: int32
maximum: 100
minimum: 0
type: integer
required:
- backendRef
type: object
x-kubernetes-validations:
- message: Only one of percent or fraction may be specified in HTTPRequestMirrorFilter
rule: '!(has(self.percent) && has(self.fraction))'
requestRedirect:
description: |-
RequestRedirect defines a schema for a filter that responds to the
request with an HTTP redirection.
Support: Core
properties:
hostname:
description: |-
Hostname is the hostname to be used in the value of the `Location`
header in the response.
When empty, the hostname in the `Host` header of the request is used.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines parameters used to modify the path of the incoming request.
The modified path is then used to construct the `Location` header. When
empty, the request path is used as-is.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
port:
description: |-
Port is the port to be used in the value of the `Location`
header in the response.
If no port is specified, the redirect port MUST be derived using the
following rules:
* If redirect scheme is not-empty, the redirect port MUST be the well-known
port associated with the redirect scheme. Specifically "http" to port 80
and "https" to port 443. If the redirect scheme does not have a
well-known port, the listener port of the Gateway SHOULD be used.
* If redirect scheme is empty, the redirect port MUST be the Gateway
Listener port.
Implementations SHOULD NOT add the port number in the 'Location'
header in the following cases:
* A Location header that will use HTTP (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 80.
* A Location header that will use HTTPS (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 443.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
scheme:
description: |-
Scheme is the scheme to be used in the value of the `Location` header in
the response. When empty, the scheme of the request is used.
Scheme redirects can affect the port of the redirect, for more information,
refer to the documentation for the port field of this filter.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Extended
enum:
- http
- https
type: string
statusCode:
default: 302
description: |-
StatusCode is the HTTP status code to be used in response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Core
enum:
- 301
- 302
type: integer
type: object
responseHeaderModifier:
description: |-
ResponseHeaderModifier defines a schema for a filter that modifies response
headers.
Support: Extended
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
type:
description: |-
Type identifies the type of filter to apply. As with other API fields,
types are classified into three conformance levels:
- Core: Filter types and their corresponding configuration defined by
"Support: Core" in this package, e.g. "RequestHeaderModifier". All
implementations must support core filters.
- Extended: Filter types and their corresponding configuration defined by
"Support: Extended" in this package, e.g. "RequestMirror". Implementers
are encouraged to support extended filters.
- Implementation-specific: Filters that are defined and supported by
specific vendors.
In the future, filters showing convergence in behavior across multiple
implementations will be considered for inclusion in extended or core
conformance levels. Filter-specific configuration for such filters
is specified using the ExtensionRef field. `Type` should be set to
"ExtensionRef" for custom filters.
Implementers are encouraged to define custom implementation types to
extend the core API with implementation-specific behavior.
If a reference to a custom filter type cannot be resolved, the filter
MUST NOT be skipped. Instead, requests that would have been processed by
that filter MUST receive a HTTP error response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- RequestHeaderModifier
- ResponseHeaderModifier
- RequestMirror
- RequestRedirect
- URLRewrite
- ExtensionRef
- CORS
- ExternalAuth
type: string
urlRewrite:
description: |-
URLRewrite defines a schema for a filter that modifies a request during forwarding.
Support: Extended
properties:
hostname:
description: |-
Hostname is the value to be used to replace the Host header value during
forwarding.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines a path rewrite.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
type: object
required:
- type
type: object
x-kubernetes-validations:
- message: filter.requestHeaderModifier must be nil if the filter.type is not RequestHeaderModifier
rule: '!(has(self.requestHeaderModifier) && self.type != ''RequestHeaderModifier'')'
- message: filter.requestHeaderModifier must be specified for RequestHeaderModifier filter.type
rule: '!(!has(self.requestHeaderModifier) && self.type == ''RequestHeaderModifier'')'
- message: filter.responseHeaderModifier must be nil if the filter.type is not ResponseHeaderModifier
rule: '!(has(self.responseHeaderModifier) && self.type != ''ResponseHeaderModifier'')'
- message: filter.responseHeaderModifier must be specified for ResponseHeaderModifier filter.type
rule: '!(!has(self.responseHeaderModifier) && self.type == ''ResponseHeaderModifier'')'
- message: filter.requestMirror must be nil if the filter.type is not RequestMirror
rule: '!(has(self.requestMirror) && self.type != ''RequestMirror'')'
- message: filter.requestMirror must be specified for RequestMirror filter.type
rule: '!(!has(self.requestMirror) && self.type == ''RequestMirror'')'
- message: filter.requestRedirect must be nil if the filter.type is not RequestRedirect
rule: '!(has(self.requestRedirect) && self.type != ''RequestRedirect'')'
- message: filter.requestRedirect must be specified for RequestRedirect filter.type
rule: '!(!has(self.requestRedirect) && self.type == ''RequestRedirect'')'
- message: filter.urlRewrite must be nil if the filter.type is not URLRewrite
rule: '!(has(self.urlRewrite) && self.type != ''URLRewrite'')'
- message: filter.urlRewrite must be specified for URLRewrite filter.type
rule: '!(!has(self.urlRewrite) && self.type == ''URLRewrite'')'
- message: filter.extensionRef must be nil if the filter.type is not ExtensionRef
rule: '!(has(self.extensionRef) && self.type != ''ExtensionRef'')'
- message: filter.extensionRef must be specified for ExtensionRef filter.type
rule: '!(!has(self.extensionRef) && self.type == ''ExtensionRef'')'
- message: filter.cors must be nil if the filter.type is not CORS
rule: '!(has(self.cors) && self.type != ''CORS'')'
- message: filter.cors must be specified for CORS filter.type
rule: '!(!has(self.cors) && self.type == ''CORS'')'
- message: filter.externalAuth must be nil if the filter.type is not ExternalAuth
rule: '!(has(self.externalAuth) && self.type != ''ExternalAuth'')'
- message: filter.externalAuth must be specified for ExternalAuth filter.type
rule: '!(!has(self.externalAuth) && self.type == ''ExternalAuth'')'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: May specify either httpRouteFilterRequestRedirect or httpRouteFilterRequestRewrite, but not both
rule: '!(self.exists(f, f.type == ''RequestRedirect'') && self.exists(f, f.type == ''URLRewrite''))'
- message: RequestHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'RequestHeaderModifier').size() <= 1
- message: ResponseHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'ResponseHeaderModifier').size() <= 1
- message: RequestRedirect filter cannot be repeated
rule: self.filter(f, f.type == 'RequestRedirect').size() <= 1
- message: URLRewrite filter cannot be repeated
rule: self.filter(f, f.type == 'URLRewrite').size() <= 1
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
weight:
default: 1
description: |-
Weight specifies the proportion of requests forwarded to the referenced
backend. This is computed as weight/(sum of all weights in this
BackendRefs list). For non-zero values, there may be some epsilon from
the exact proportion defined here depending on the precision an
implementation supports. Weight is not a percentage and the sum of
weights does not need to equal 100.
If only one backend is specified and it has a weight greater than 0, 100%
of the traffic is forwarded to that backend. If weight is set to 0, no
traffic should be forwarded for this entry. If unspecified, weight
defaults to 1.
Support for this field varies based on the context where used.
format: int32
maximum: 1000000
minimum: 0
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
filters:
description: |-
Filters define the filters that are applied to requests that match
this rule.
Wherever possible, implementations SHOULD implement filters in the order
they are specified.
Implementations MAY choose to implement this ordering strictly, rejecting
any combination or order of filters that cannot be supported. If implementations
choose a strict interpretation of filter ordering, they MUST clearly document
that behavior.
To reject an invalid combination or order of filters, implementations SHOULD
consider the Route Rules with this configuration invalid. If all Route Rules
in a Route are invalid, the entire Route would be considered invalid. If only
a portion of Route Rules are invalid, implementations MUST set the
"PartiallyInvalid" condition for the Route.
Conformance-levels at this level are defined based on the type of filter:
- ALL core filters MUST be supported by all implementations.
- Implementers are encouraged to support extended filters.
- Implementation-specific custom filters have no API guarantees across
implementations.
Specifying the same filter multiple times is not supported unless explicitly
indicated in the filter.
All filters are expected to be compatible with each other except for the
URLRewrite and RequestRedirect filters, which may not be combined. If an
implementation cannot support other combinations of filters, they must clearly
document that limitation. In cases where incompatible or unsupported
filters are specified and cause the `Accepted` condition to be set to status
`False`, implementations may use the `IncompatibleFilters` reason to specify
this configuration error.
Support: Core
items:
description: |-
HTTPRouteFilter defines processing steps that must be completed during the
request or response lifecycle. HTTPRouteFilters are meant as an extension
point to express processing that may be done in Gateway implementations. Some
examples include request or response modification, implementing
authentication strategies, rate-limiting, and traffic shaping. API
guarantee/conformance is defined based on the type of the filter.
properties:
cors:
description: |-
CORS defines a schema for a filter that responds to the
cross-origin request based on HTTP response header.
Support: Extended
properties:
allowCredentials:
description: |-
AllowCredentials indicates whether the actual cross-origin request allows
to include credentials.
When set to true, the gateway will include the `Access-Control-Allow-Credentials`
response header with value true (case-sensitive).
When set to false or omitted the gateway will omit the header
`Access-Control-Allow-Credentials` entirely (this is the standard CORS
behavior).
Support: Extended
type: boolean
allowHeaders:
description: |-
AllowHeaders indicates which HTTP request headers are supported for
accessing the requested resource.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Allow-Headers`
response header are separated by a comma (",").
When the `AllowHeaders` field is configured with one or more headers, the
gateway must return the `Access-Control-Allow-Headers` response header
which value is present in the `AllowHeaders` field.
If any header name in the `Access-Control-Request-Headers` request header
is not included in the list of header names specified by the response
header `Access-Control-Allow-Headers`, it will present an error on the
client side.
If any header name in the `Access-Control-Allow-Headers` response header
does not recognize by the client, it will also occur an error on the
client side.
A wildcard indicates that the requests with all HTTP headers are allowed.
The `Access-Control-Allow-Headers` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowHeaders` field
specified with the `*` wildcard, the gateway must specify one or more
HTTP headers in the value of the `Access-Control-Allow-Headers` response
header. The value of the header `Access-Control-Allow-Headers` is same as
the `Access-Control-Request-Headers` header provided by the client. If
the header `Access-Control-Request-Headers` is not included in the
request, the gateway will omit the `Access-Control-Allow-Headers`
response header, instead of specifying the `*` wildcard. A Gateway
implementation may choose to add implementation-specific default headers.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
allowMethods:
description: |-
AllowMethods indicates which HTTP methods are supported for accessing the
requested resource.
Valid values are any method defined by RFC9110, along with the special
value `*`, which represents all HTTP methods are allowed.
Method names are case sensitive, so these values are also case-sensitive.
(See https://www.rfc-editor.org/rfc/rfc2616#section-5.1.1)
Multiple method names in the value of the `Access-Control-Allow-Methods`
response header are separated by a comma (",").
A CORS-safelisted method is a method that is `GET`, `HEAD`, or `POST`.
(See https://fetch.spec.whatwg.org/#cors-safelisted-method) The
CORS-safelisted methods are always allowed, regardless of whether they
are specified in the `AllowMethods` field.
When the `AllowMethods` field is configured with one or more methods, the
gateway must return the `Access-Control-Allow-Methods` response header
which value is present in the `AllowMethods` field.
If the HTTP method of the `Access-Control-Request-Method` request header
is not included in the list of methods specified by the response header
`Access-Control-Allow-Methods`, it will present an error on the client
side.
The `Access-Control-Allow-Methods` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowMethods` field
specified with the `*` wildcard, the gateway must specify one HTTP method
in the value of the Access-Control-Allow-Methods response header. The
value of the header `Access-Control-Allow-Methods` is same as the
`Access-Control-Request-Method` header provided by the client. If the
header `Access-Control-Request-Method` is not included in the request,
the gateway will omit the `Access-Control-Allow-Methods` response header,
instead of specifying the `*` wildcard. A Gateway implementation may
choose to add implementation-specific default methods.
Support: Extended
items:
enum:
- GET
- HEAD
- POST
- PUT
- DELETE
- CONNECT
- OPTIONS
- TRACE
- PATCH
- '*'
type: string
maxItems: 9
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowMethods cannot contain '*' alongside other methods
rule: '!(''*'' in self && self.size() > 1)'
allowOrigins:
description: |-
AllowOrigins indicates whether the response can be shared with requested
resource from the given `Origin`.
The `Origin` consists of a scheme and a host, with an optional port, and
takes the form `<scheme>://<host>(:<port>)`.
Valid values for scheme are: `http` and `https`.
Valid values for port are any integer between 1 and 65535 (the list of
available TCP/UDP ports). Note that, if not included, port `80` is
assumed for `http` scheme origins, and port `443` is assumed for `https`
origins. This may affect origin matching.
The host part of the origin may contain the wildcard character `*`. These
wildcard characters behave as follows:
* `*` is a greedy match to the _left_, including any number of
DNS labels to the left of its position. This also means that
`*` will include any number of period `.` characters to the
left of its position.
* A wildcard by itself matches all hosts.
An origin value that includes _only_ the `*` character indicates requests
from all `Origin`s are allowed.
When the `AllowOrigins` field is configured with multiple origins, it
means the server supports clients from multiple origins. If the request
`Origin` matches the configured allowed origins, the gateway must return
the given `Origin` and sets value of the header
`Access-Control-Allow-Origin` same as the `Origin` header provided by the
client.
The status code of a successful response to a "preflight" request is
always an OK status (i.e., 204 or 200).
If the request `Origin` does not match the configured allowed origins,
the gateway returns 204/200 response but doesn't set the relevant
cross-origin response headers. Alternatively, the gateway responds with
403 status to the "preflight" request is denied, coupled with omitting
the CORS headers. The cross-origin request fails on the client side.
Therefore, the client doesn't attempt the actual cross-origin request.
The `Access-Control-Allow-Origin` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowOrigins` field
specified with the `*` wildcard, the gateway must return a single origin
in the value of the `Access-Control-Allow-Origin` response header,
instead of specifying the `*` wildcard. The value of the header
`Access-Control-Allow-Origin` is same as the `Origin` header provided by
the client.
Support: Extended
items:
description: |-
The CORSOrigin MUST NOT be a relative URI, and it MUST follow the URI syntax and
encoding rules specified in RFC3986. The CORSOrigin MUST include both a
scheme (e.g., "http" or "spiffe") and a scheme-specific-part, or it should be a single '*' character.
URIs that include an authority MUST include a fully qualified domain name or
IP address as the host.
maxLength: 253
minLength: 1
pattern: (^\*$)|(^([a-zA-Z][a-zA-Z0-9+\-.]+):\/\/([^:/?#]+)(:([0-9]{1,5}))?$)
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowOrigins cannot contain '*' alongside other origins
rule: '!(''*'' in self && self.size() > 1)'
exposeHeaders:
description: |-
ExposeHeaders indicates which HTTP response headers can be exposed
to client-side scripts in response to a cross-origin request.
A CORS-safelisted response header is an HTTP header in a CORS response
that it is considered safe to expose to the client scripts.
The CORS-safelisted response headers include the following headers:
`Cache-Control`
`Content-Language`
`Content-Length`
`Content-Type`
`Expires`
`Last-Modified`
`Pragma`
(See https://fetch.spec.whatwg.org/#cors-safelisted-response-header-name)
The CORS-safelisted response headers are exposed to client by default.
When an HTTP header name is specified using the `ExposeHeaders` field,
this additional header will be exposed as part of the response to the
client.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Expose-Headers`
response header are separated by a comma (",").
A wildcard indicates that the responses with all HTTP headers are exposed
to clients. The `Access-Control-Expose-Headers` response header can only
use `*` wildcard as value when the `AllowCredentials` field is false or omitted.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
maxAge:
default: 5
description: |-
MaxAge indicates the duration (in seconds) for the client to cache the
results of a "preflight" request.
The information provided by the `Access-Control-Allow-Methods` and
`Access-Control-Allow-Headers` response headers can be cached by the
client until the time specified by `Access-Control-Max-Age` elapses.
The default value of `Access-Control-Max-Age` response header is 5
(seconds).
format: int32
minimum: 1
type: integer
type: object
extensionRef:
description: |-
ExtensionRef is an optional, implementation-specific extension to the
"filter" behavior. For example, resource "myroutefilter" in group
"networking.example.net"). ExtensionRef MUST NOT be used for core and
extended filters.
This filter can be used multiple times within the same rule.
Support: Implementation-specific
properties:
group:
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is kind of the referent. For example "HTTPRoute" or "Service".
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
required:
- group
- kind
- name
type: object
externalAuth:
description: |-
ExternalAuth configures settings related to sending request details
to an external auth service. The external service MUST authenticate
the request, and MAY authorize the request as well.
If there is any problem communicating with the external service,
this filter MUST fail closed.
Support: Extended
properties:
backendRef:
description: |-
BackendRef is a reference to a backend to send authorization
requests to.
The backend must speak the selected protocol (GRPC or HTTP) on the
referenced port.
If the backend service requires TLS, use BackendTLSPolicy to tell the
implementation to supply the TLS details to be used to connect to that
backend.
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
forwardBody:
description: |-
ForwardBody controls if requests to the authorization server should include
the body of the client request; and if so, how big that body is allowed
to be.
It is expected that implementations will buffer the request body up to
`forwardBody.maxSize` bytes. Bodies over that size must be rejected with a
4xx series error (413 or 403 are common examples), and fail processing
of the filter.
If unset, or `forwardBody.maxSize` is set to `0`, then the body will not
be forwarded.
Feature Name: HTTPRouteExternalAuthForwardBody
properties:
maxSize:
description: |-
MaxSize specifies how large in bytes the largest body that will be buffered
and sent to the authorization server. If the body size is larger than
`maxSize`, then the body sent to the authorization server must be
truncated to `maxSize` bytes.
Experimental note: This behavior needs to be checked against
various dataplanes; it may need to be changed.
See https://github.com/kubernetes-sigs/gateway-api/pull/4001#discussion_r2291405746
for more.
If 0, the body will not be sent to the authorization server.
type: integer
type: object
grpc:
description: |-
GRPCAuthConfig contains configuration for communication with ext_authz
protocol-speaking backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what headers from the client request
will be sent to the authorization server.
If this list is empty, then all headers must be sent.
If the list has entries, only those entries must be sent.
items:
type: string
type: array
x-kubernetes-list-type: set
type: object
http:
description: |-
HTTPAuthConfig contains configuration for communication with HTTP-speaking
backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what additional headers from the client request
will be sent to the authorization server.
The following headers must always be sent to the authorization server,
regardless of this setting:
* `Host`
* `Method`
* `Path`
* `Content-Length`
* `Authorization`
If this list is empty, then only those headers must be sent.
Note that `Content-Length` has a special behavior, in that the length
sent must be correct for the actual request to the external authorization
server - that is, it must reflect the actual number of bytes sent in the
body of the request to the authorization server.
So if the `forwardBody` stanza is unset, or `forwardBody.maxSize` is set
to `0`, then `Content-Length` must be `0`. If `forwardBody.maxSize` is set
to anything other than `0`, then the `Content-Length` of the authorization
request must be set to the actual number of bytes forwarded.
items:
type: string
type: array
x-kubernetes-list-type: set
allowedResponseHeaders:
description: |-
AllowedResponseHeaders specifies what headers from the authorization response
will be copied into the request to the backend.
If this list is empty, then all headers from the authorization server
except Authority or Host must be copied.
items:
type: string
type: array
x-kubernetes-list-type: set
path:
description: |-
Path sets the prefix that paths from the client request will have added
when forwarded to the authorization server.
When empty or unspecified, no prefix is added.
Valid values are the same as the "value" regex for path values in the `match`
stanza, and the validation regex will screen out invalid paths in the same way.
Even with the validation, implementations MUST sanitize this input before using it
directly.
maxLength: 1024
pattern: ^(?:[-A-Za-z0-9/._~!$&'()*+,;=:@]|[%][0-9a-fA-F]{2})+$
type: string
type: object
protocol:
description: |-
ExternalAuthProtocol describes which protocol to use when communicating with an
ext_authz authorization server.
When this is set to GRPC, each backend must use the Envoy ext_authz protocol
on the port specified in `backendRefs`. Requests and responses are defined
in the protobufs explained at:
https://www.envoyproxy.io/docs/envoy/latest/api-v3/service/auth/v3/external_auth.proto
When this is set to HTTP, each backend must respond with a `200` status
code in on a successful authorization. Any other code is considered
an authorization failure.
Feature Names:
GRPC Support - HTTPRouteExternalAuthGRPC
HTTP Support - HTTPRouteExternalAuthHTTP
enum:
- HTTP
- GRPC
type: string
required:
- backendRef
- protocol
type: object
x-kubernetes-validations:
- message: grpc must be specified when protocol is set to 'GRPC'
rule: 'self.protocol == ''GRPC'' ? has(self.grpc) : true'
- message: protocol must be 'GRPC' when grpc is set
rule: 'has(self.grpc) ? self.protocol == ''GRPC'' : true'
- message: http must be specified when protocol is set to 'HTTP'
rule: 'self.protocol == ''HTTP'' ? has(self.http) : true'
- message: protocol must be 'HTTP' when http is set
rule: 'has(self.http) ? self.protocol == ''HTTP'' : true'
requestHeaderModifier:
description: |-
RequestHeaderModifier defines a schema for a filter that modifies request
headers.
Support: Core
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
requestMirror:
description: |-
RequestMirror defines a schema for a filter that mirrors requests.
Requests are sent to the specified destination, but responses from
that destination are ignored.
This filter can be used multiple times within the same rule. Note that
not all implementations will be able to support mirroring to multiple
backends.
Support: Extended
properties:
backendRef:
description: |-
BackendRef references a resource where mirrored requests are sent.
Mirrored requests must be sent only to a single destination endpoint
within this BackendRef, irrespective of how many endpoints are present
within this BackendRef.
If the referent cannot be found, this BackendRef is invalid and must be
dropped from the Gateway. The controller must ensure the "ResolvedRefs"
condition on the Route status is set to `status: False` and not configure
this backend in the underlying implementation.
If there is a cross-namespace reference to an *existing* object
that is not allowed by a ReferenceGrant, the controller must ensure the
"ResolvedRefs" condition on the Route is set to `status: False`,
with the "RefNotPermitted" reason and not configure this backend in the
underlying implementation.
In either error case, the Message of the `ResolvedRefs` Condition
should be used to provide more detail about the problem.
Support: Extended for Kubernetes Service
Support: Implementation-specific for any other resource
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
fraction:
description: |-
Fraction represents the fraction of requests that should be
mirrored to BackendRef.
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
properties:
denominator:
default: 100
format: int32
minimum: 1
type: integer
numerator:
format: int32
minimum: 0
type: integer
required:
- numerator
type: object
x-kubernetes-validations:
- message: numerator must be less than or equal to denominator
rule: self.numerator <= self.denominator
percent:
description: |-
Percent represents the percentage of requests that should be
mirrored to BackendRef. Its minimum value is 0 (indicating 0% of
requests) and its maximum value is 100 (indicating 100% of requests).
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
format: int32
maximum: 100
minimum: 0
type: integer
required:
- backendRef
type: object
x-kubernetes-validations:
- message: Only one of percent or fraction may be specified in HTTPRequestMirrorFilter
rule: '!(has(self.percent) && has(self.fraction))'
requestRedirect:
description: |-
RequestRedirect defines a schema for a filter that responds to the
request with an HTTP redirection.
Support: Core
properties:
hostname:
description: |-
Hostname is the hostname to be used in the value of the `Location`
header in the response.
When empty, the hostname in the `Host` header of the request is used.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines parameters used to modify the path of the incoming request.
The modified path is then used to construct the `Location` header. When
empty, the request path is used as-is.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
port:
description: |-
Port is the port to be used in the value of the `Location`
header in the response.
If no port is specified, the redirect port MUST be derived using the
following rules:
* If redirect scheme is not-empty, the redirect port MUST be the well-known
port associated with the redirect scheme. Specifically "http" to port 80
and "https" to port 443. If the redirect scheme does not have a
well-known port, the listener port of the Gateway SHOULD be used.
* If redirect scheme is empty, the redirect port MUST be the Gateway
Listener port.
Implementations SHOULD NOT add the port number in the 'Location'
header in the following cases:
* A Location header that will use HTTP (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 80.
* A Location header that will use HTTPS (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 443.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
scheme:
description: |-
Scheme is the scheme to be used in the value of the `Location` header in
the response. When empty, the scheme of the request is used.
Scheme redirects can affect the port of the redirect, for more information,
refer to the documentation for the port field of this filter.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Extended
enum:
- http
- https
type: string
statusCode:
default: 302
description: |-
StatusCode is the HTTP status code to be used in response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Core
enum:
- 301
- 302
type: integer
type: object
responseHeaderModifier:
description: |-
ResponseHeaderModifier defines a schema for a filter that modifies response
headers.
Support: Extended
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
type:
description: |-
Type identifies the type of filter to apply. As with other API fields,
types are classified into three conformance levels:
- Core: Filter types and their corresponding configuration defined by
"Support: Core" in this package, e.g. "RequestHeaderModifier". All
implementations must support core filters.
- Extended: Filter types and their corresponding configuration defined by
"Support: Extended" in this package, e.g. "RequestMirror". Implementers
are encouraged to support extended filters.
- Implementation-specific: Filters that are defined and supported by
specific vendors.
In the future, filters showing convergence in behavior across multiple
implementations will be considered for inclusion in extended or core
conformance levels. Filter-specific configuration for such filters
is specified using the ExtensionRef field. `Type` should be set to
"ExtensionRef" for custom filters.
Implementers are encouraged to define custom implementation types to
extend the core API with implementation-specific behavior.
If a reference to a custom filter type cannot be resolved, the filter
MUST NOT be skipped. Instead, requests that would have been processed by
that filter MUST receive a HTTP error response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- RequestHeaderModifier
- ResponseHeaderModifier
- RequestMirror
- RequestRedirect
- URLRewrite
- ExtensionRef
- CORS
- ExternalAuth
type: string
urlRewrite:
description: |-
URLRewrite defines a schema for a filter that modifies a request during forwarding.
Support: Extended
properties:
hostname:
description: |-
Hostname is the value to be used to replace the Host header value during
forwarding.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines a path rewrite.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
type: object
required:
- type
type: object
x-kubernetes-validations:
- message: filter.requestHeaderModifier must be nil if the filter.type is not RequestHeaderModifier
rule: '!(has(self.requestHeaderModifier) && self.type != ''RequestHeaderModifier'')'
- message: filter.requestHeaderModifier must be specified for RequestHeaderModifier filter.type
rule: '!(!has(self.requestHeaderModifier) && self.type == ''RequestHeaderModifier'')'
- message: filter.responseHeaderModifier must be nil if the filter.type is not ResponseHeaderModifier
rule: '!(has(self.responseHeaderModifier) && self.type != ''ResponseHeaderModifier'')'
- message: filter.responseHeaderModifier must be specified for ResponseHeaderModifier filter.type
rule: '!(!has(self.responseHeaderModifier) && self.type == ''ResponseHeaderModifier'')'
- message: filter.requestMirror must be nil if the filter.type is not RequestMirror
rule: '!(has(self.requestMirror) && self.type != ''RequestMirror'')'
- message: filter.requestMirror must be specified for RequestMirror filter.type
rule: '!(!has(self.requestMirror) && self.type == ''RequestMirror'')'
- message: filter.requestRedirect must be nil if the filter.type is not RequestRedirect
rule: '!(has(self.requestRedirect) && self.type != ''RequestRedirect'')'
- message: filter.requestRedirect must be specified for RequestRedirect filter.type
rule: '!(!has(self.requestRedirect) && self.type == ''RequestRedirect'')'
- message: filter.urlRewrite must be nil if the filter.type is not URLRewrite
rule: '!(has(self.urlRewrite) && self.type != ''URLRewrite'')'
- message: filter.urlRewrite must be specified for URLRewrite filter.type
rule: '!(!has(self.urlRewrite) && self.type == ''URLRewrite'')'
- message: filter.extensionRef must be nil if the filter.type is not ExtensionRef
rule: '!(has(self.extensionRef) && self.type != ''ExtensionRef'')'
- message: filter.extensionRef must be specified for ExtensionRef filter.type
rule: '!(!has(self.extensionRef) && self.type == ''ExtensionRef'')'
- message: filter.cors must be nil if the filter.type is not CORS
rule: '!(has(self.cors) && self.type != ''CORS'')'
- message: filter.cors must be specified for CORS filter.type
rule: '!(!has(self.cors) && self.type == ''CORS'')'
- message: filter.externalAuth must be nil if the filter.type is not ExternalAuth
rule: '!(has(self.externalAuth) && self.type != ''ExternalAuth'')'
- message: filter.externalAuth must be specified for ExternalAuth filter.type
rule: '!(!has(self.externalAuth) && self.type == ''ExternalAuth'')'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: May specify either httpRouteFilterRequestRedirect or httpRouteFilterRequestRewrite, but not both
rule: '!(self.exists(f, f.type == ''RequestRedirect'') && self.exists(f, f.type == ''URLRewrite''))'
- message: RequestHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'RequestHeaderModifier').size() <= 1
- message: ResponseHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'ResponseHeaderModifier').size() <= 1
- message: RequestRedirect filter cannot be repeated
rule: self.filter(f, f.type == 'RequestRedirect').size() <= 1
- message: URLRewrite filter cannot be repeated
rule: self.filter(f, f.type == 'URLRewrite').size() <= 1
matches:
default:
- path:
type: PathPrefix
value: /
description: |-
Matches define conditions used for matching the rule against incoming
HTTP requests. Each match is independent, i.e. this rule will be matched
if **any** one of the matches is satisfied.
For example, take the following matches configuration:
```
matches:
- path:
value: "/foo"
headers:
- name: "version"
value: "v2"
- path:
value: "/v2/foo"
```
For a request to match against this rule, a request must satisfy
EITHER of the two conditions:
- path prefixed with `/foo` AND contains the header `version: v2`
- path prefix of `/v2/foo`
See the documentation for HTTPRouteMatch on how to specify multiple
match conditions that should be ANDed together.
If no matches are specified, the default is a prefix
path match on "/", which has the effect of matching every
HTTP request.
Proxy or Load Balancer routing configuration generated from HTTPRoutes
MUST prioritize matches based on the following criteria, continuing on
ties. Across all rules specified on applicable Routes, precedence must be
given to the match having:
* "Exact" path match.
* "Prefix" path match with largest number of characters.
* Method match.
* Largest number of header matches.
* Largest number of query param matches.
Note: The precedence of RegularExpression path matches are implementation-specific.
If ties still exist across multiple Routes, matching precedence MUST be
determined in order of the following criteria, continuing on ties:
* The oldest Route based on creation timestamp.
* The Route appearing first in alphabetical order by
"{namespace}/{name}".
If ties still exist within an HTTPRoute, matching precedence MUST be granted
to the FIRST matching rule (in list order) with a match meeting the above
criteria.
When no rules matching a request have been successfully attached to the
parent a request is coming from, a HTTP 404 status code MUST be returned.
items:
description: "HTTPRouteMatch defines the predicate used to match requests to a given\naction. Multiple match types are ANDed together, i.e. the match will\nevaluate to true only if all conditions are satisfied.\n\nFor example, the match below will match a HTTP request only if its path\nstarts with `/foo` AND it contains the `version: v1` header:\n\n```\nmatch:\n\n\tpath:\n\t value: \"/foo\"\n\theaders:\n\t- name: \"version\"\n\t value \"v1\"\n\n```"
properties:
headers:
description: |-
Headers specifies HTTP request header matchers. Multiple match values are
ANDed together, meaning, a request must match all the specified headers
to select the route.
items:
description: |-
HTTPHeaderMatch describes how to select a HTTP route by matching HTTP request
headers.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, only the first
entry with an equivalent name MUST be considered for a match. Subsequent
entries with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
When a header is repeated in an HTTP request, it is
implementation-specific behavior as to how this is represented.
Generally, proxies should follow the guidance from the RFC:
https://www.rfc-editor.org/rfc/rfc7230.html#section-3.2.2 regarding
processing a repeated header, with special handling for "Set-Cookie".
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
type:
default: Exact
description: |-
Type specifies how to match against the value of the header.
Support: Core (Exact)
Support: Implementation-specific (RegularExpression)
Since RegularExpression HeaderMatchType has implementation-specific
conformance, implementations can support POSIX, PCRE or any other dialects
of regular expressions. Please read the implementation's documentation to
determine the supported dialect.
enum:
- Exact
- RegularExpression
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
method:
description: |-
Method specifies HTTP method matcher.
When specified, this route will be matched only if the request has the
specified method.
Support: Extended
enum:
- GET
- HEAD
- POST
- PUT
- DELETE
- CONNECT
- OPTIONS
- TRACE
- PATCH
type: string
path:
default:
type: PathPrefix
value: /
description: |-
Path specifies a HTTP request path matcher. If this field is not
specified, a default prefix match on the "/" path is provided.
properties:
type:
default: PathPrefix
description: |-
Type specifies how to match against the path Value.
Support: Core (Exact, PathPrefix)
Support: Implementation-specific (RegularExpression)
enum:
- Exact
- PathPrefix
- RegularExpression
type: string
value:
default: /
description: Value of the HTTP path to match against.
maxLength: 1024
type: string
type: object
x-kubernetes-validations:
- message: value must be an absolute path and start with '/' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? self.value.startsWith(''/'') : true'
- message: must not contain '//' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''//'') : true'
- message: must not contain '/./' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''/./'') : true'
- message: must not contain '/../' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''/../'') : true'
- message: must not contain '%2f' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''%2f'') : true'
- message: must not contain '%2F' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''%2F'') : true'
- message: must not contain '#' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''#'') : true'
- message: must not end with '/..' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.endsWith(''/..'') : true'
- message: must not end with '/.' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.endsWith(''/.'') : true'
- message: type must be one of ['Exact', 'PathPrefix', 'RegularExpression']
rule: self.type in ['Exact','PathPrefix'] || self.type == 'RegularExpression'
- message: must only contain valid characters (matching ^(?:[-A-Za-z0-9/._~!$&'()*+,;=:@]|[%][0-9a-fA-F]{2})+$) for types ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? self.value.matches(r"""^(?:[-A-Za-z0-9/._~!$&''()*+,;=:@]|[%][0-9a-fA-F]{2})+$""") : true'
queryParams:
description: |-
QueryParams specifies HTTP query parameter matchers. Multiple match
values are ANDed together, meaning, a request must match all the
specified query parameters to select the route.
Support: Extended
items:
description: |-
HTTPQueryParamMatch describes how to select a HTTP route by matching HTTP
query parameters.
properties:
name:
description: |-
Name is the name of the HTTP query param to be matched. This must be an
exact string match. (See
https://tools.ietf.org/html/rfc7230#section-2.7.3).
If multiple entries specify equivalent query param names, only the first
entry with an equivalent name MUST be considered for a match. Subsequent
entries with an equivalent query param name MUST be ignored.
If a query param is repeated in an HTTP request, the behavior is
purposely left undefined, since different data planes have different
capabilities. However, it is *recommended* that implementations should
match against the first value of the param if the data plane supports it,
as this behavior is expected in other load balancing contexts outside of
the Gateway API.
Users SHOULD NOT route traffic based on repeated query params to guard
themselves against potential differences in the implementations.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
type:
default: Exact
description: |-
Type specifies how to match against the value of the query parameter.
Support: Extended (Exact)
Support: Implementation-specific (RegularExpression)
Since RegularExpression QueryParamMatchType has Implementation-specific
conformance, implementations can support POSIX, PCRE or any other
dialects of regular expressions. Please read the implementation's
documentation to determine the supported dialect.
enum:
- Exact
- RegularExpression
type: string
value:
description: Value is the value of HTTP query param to be matched.
maxLength: 1024
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
maxItems: 64
type: array
x-kubernetes-list-type: atomic
name:
description: |-
Name is the name of the route rule. This name MUST be unique within a Route if it is set.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
retry:
description: |-
Retry defines the configuration for when to retry an HTTP request.
Support: Extended
properties:
attempts:
description: |-
Attempts specifies the maximum number of times an individual request
from the gateway to a backend should be retried.
If the maximum number of retries has been attempted without a successful
response from the backend, the Gateway MUST return an error.
When this field is unspecified, the number of times to attempt to retry
a backend request is implementation-specific.
Support: Extended
type: integer
backoff:
description: |-
Backoff specifies the minimum duration a Gateway should wait between
retry attempts and is represented in Gateway API Duration formatting.
For example, setting the `rules[].retry.backoff` field to the value
`100ms` will cause a backend request to first be retried approximately
100 milliseconds after timing out or receiving a response code configured
to be retryable.
An implementation MAY use an exponential or alternative backoff strategy
for subsequent retry attempts, MAY cap the maximum backoff duration to
some amount greater than the specified minimum, and MAY add arbitrary
jitter to stagger requests, as long as unsuccessful backend requests are
not retried before the configured minimum duration.
If a Request timeout (`rules[].timeouts.request`) is configured on the
route, the entire duration of the initial request and any retry attempts
MUST not exceed the Request timeout duration. If any retry attempts are
still in progress when the Request timeout duration has been reached,
these SHOULD be canceled if possible and the Gateway MUST immediately
return a timeout error.
If a BackendRequest timeout (`rules[].timeouts.backendRequest`) is
configured on the route, any retry attempts which reach the configured
BackendRequest timeout duration without a response SHOULD be canceled if
possible and the Gateway should wait for at least the specified backoff
duration before attempting to retry the backend request again.
If a BackendRequest timeout is _not_ configured on the route, retry
attempts MAY time out after an implementation default duration, or MAY
remain pending until a configured Request timeout or implementation
default duration for total request time is reached.
When this field is unspecified, the time to wait between retry attempts
is implementation-specific.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
codes:
description: |-
Codes defines the HTTP response status codes for which a backend request
should be retried.
Support: Extended
items:
description: |-
HTTPRouteRetryStatusCode defines an HTTP response status code for
which a backend request should be retried.
Implementations MUST support the following status codes as retryable:
* 500
* 502
* 503
* 504
Implementations MAY support specifying additional discrete values in the
500-599 range.
Implementations MAY support specifying discrete values in the 400-499 range,
which are often inadvisable to retry.
maximum: 599
minimum: 400
type: integer
type: array
x-kubernetes-list-type: atomic
type: object
sessionPersistence:
description: |-
SessionPersistence defines and configures session persistence
for the route rule.
Support: Extended
properties:
absoluteTimeout:
description: |-
AbsoluteTimeout defines the absolute timeout of the persistent
session. Once the AbsoluteTimeout duration has elapsed, the
session becomes invalid.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
cookieConfig:
description: |-
CookieConfig provides configuration settings that are specific
to cookie-based session persistence.
Support: Core
properties:
lifetimeType:
default: Session
description: |-
LifetimeType specifies whether the cookie has a permanent or
session-based lifetime. A permanent cookie persists until its
specified expiry time, defined by the Expires or Max-Age cookie
attributes, while a session cookie is deleted when the current
session ends.
When set to "Permanent", AbsoluteTimeout indicates the
cookie's lifetime via the Expires or Max-Age cookie attributes
and is required.
When set to "Session", AbsoluteTimeout indicates the
absolute lifetime of the cookie tracked by the gateway and
is optional.
Defaults to "Session".
Support: Core for "Session" type
Support: Extended for "Permanent" type
enum:
- Permanent
- Session
type: string
type: object
idleTimeout:
description: |-
IdleTimeout defines the idle timeout of the persistent session.
Once the session has been idle for more than the specified
IdleTimeout duration, the session becomes invalid.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
sessionName:
description: |-
SessionName defines the name of the persistent session token
which may be reflected in the cookie or the header. Users
should avoid reusing session names to prevent unintended
consequences, such as rejection or unpredictable behavior.
Support: Implementation-specific
maxLength: 128
type: string
type:
default: Cookie
description: |-
Type defines the type of session persistence such as through
the use a header or cookie. Defaults to cookie based session
persistence.
Support: Core for "Cookie" type
Support: Extended for "Header" type
enum:
- Cookie
- Header
type: string
type: object
x-kubernetes-validations:
- message: AbsoluteTimeout must be specified when cookie lifetimeType is Permanent
rule: '!has(self.cookieConfig) || !has(self.cookieConfig.lifetimeType) || self.cookieConfig.lifetimeType != ''Permanent'' || has(self.absoluteTimeout)'
timeouts:
description: |-
Timeouts defines the timeouts that can be configured for an HTTP request.
Support: Extended
properties:
backendRequest:
description: |-
BackendRequest specifies a timeout for an individual request from the gateway
to a backend. This covers the time from when the request first starts being
sent from the gateway to when the full response has been received from the backend.
Setting a timeout to the zero duration (e.g. "0s") SHOULD disable the timeout
completely. Implementations that cannot completely disable the timeout MUST
instead interpret the zero duration as the longest possible value to which
the timeout can be set.
An entire client HTTP transaction with a gateway, covered by the Request timeout,
may result in more than one call from the gateway to the destination backend,
for example, if automatic retries are supported.
The value of BackendRequest must be a Gateway API Duration string as defined by
GEP-2257. When this field is unspecified, its behavior is implementation-specific;
when specified, the value of BackendRequest must be no more than the value of the
Request timeout (since the Request timeout encompasses the BackendRequest timeout).
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
request:
description: |-
Request specifies the maximum duration for a gateway to respond to an HTTP request.
If the gateway has not been able to respond before this deadline is met, the gateway
MUST return a timeout error.
For example, setting the `rules.timeouts.request` field to the value `10s` in an
`HTTPRoute` will cause a timeout if a client request is taking longer than 10 seconds
to complete.
Setting a timeout to the zero duration (e.g. "0s") SHOULD disable the timeout
completely. Implementations that cannot completely disable the timeout MUST
instead interpret the zero duration as the longest possible value to which
the timeout can be set.
This timeout is intended to cover as close to the whole request-response transaction
as possible although an implementation MAY choose to start the timeout after the entire
request stream has been received instead of immediately after the transaction is
initiated by the client.
The value of Request is a Gateway API Duration string as defined by GEP-2257. When this
field is unspecified, request timeout behavior is implementation-specific.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
type: object
x-kubernetes-validations:
- message: backendRequest timeout cannot be longer than request timeout
rule: '!(has(self.request) && has(self.backendRequest) && duration(self.request) != duration(''0s'') && duration(self.backendRequest) > duration(self.request))'
type: object
x-kubernetes-validations:
- message: RequestRedirect filter must not be used together with backendRefs
rule: '(has(self.backendRefs) && size(self.backendRefs) > 0) ? (!has(self.filters) || self.filters.all(f, !has(f.requestRedirect))): true'
- message: When using RequestRedirect filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.filters) && self.filters.exists_one(f, has(f.requestRedirect) && has(f.requestRedirect.path) && f.requestRedirect.path.type == ''ReplacePrefixMatch'' && has(f.requestRedirect.path.replacePrefixMatch))) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
- message: When using URLRewrite filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.filters) && self.filters.exists_one(f, has(f.urlRewrite) && has(f.urlRewrite.path) && f.urlRewrite.path.type == ''ReplacePrefixMatch'' && has(f.urlRewrite.path.replacePrefixMatch))) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
- message: Within backendRefs, when using RequestRedirect filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.backendRefs) && self.backendRefs.exists_one(b, (has(b.filters) && b.filters.exists_one(f, has(f.requestRedirect) && has(f.requestRedirect.path) && f.requestRedirect.path.type == ''ReplacePrefixMatch'' && has(f.requestRedirect.path.replacePrefixMatch))) )) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
- message: Within backendRefs, When using URLRewrite filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.backendRefs) && self.backendRefs.exists_one(b, (has(b.filters) && b.filters.exists_one(f, has(f.urlRewrite) && has(f.urlRewrite.path) && f.urlRewrite.path.type == ''ReplacePrefixMatch'' && has(f.urlRewrite.path.replacePrefixMatch))) )) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: While 16 rules and 64 matches per rule are allowed, the total number of matches across all rules in a route must be less than 128
rule: '(self.size() > 0 ? self[0].matches.size() : 0) + (self.size() > 1 ? self[1].matches.size() : 0) + (self.size() > 2 ? self[2].matches.size() : 0) + (self.size() > 3 ? self[3].matches.size() : 0) + (self.size() > 4 ? self[4].matches.size() : 0) + (self.size() > 5 ? self[5].matches.size() : 0) + (self.size() > 6 ? self[6].matches.size() : 0) + (self.size() > 7 ? self[7].matches.size() : 0) + (self.size() > 8 ? self[8].matches.size() : 0) + (self.size() > 9 ? self[9].matches.size() : 0) + (self.size() > 10 ? self[10].matches.size() : 0) + (self.size() > 11 ? self[11].matches.size() : 0) + (self.size() > 12 ? self[12].matches.size() : 0) + (self.size() > 13 ? self[13].matches.size() : 0) + (self.size() > 14 ? self[14].matches.size() : 0) + (self.size() > 15 ? self[15].matches.size() : 0) <= 128'
- message: Rule name must be unique within the route
rule: self.all(l1, !has(l1.name) || self.exists_one(l2, has(l2.name) && l1.name == l2.name))
useDefaultGateways:
description: |-
UseDefaultGateways indicates the default Gateway scope to use for this
Route. If unset (the default) or set to None, the Route will not be
attached to any default Gateway; if set, it will be attached to any
default Gateway supporting the named scope, subject to the usual rules
about which Routes a Gateway is allowed to claim.
Think carefully before using this functionality! The set of default
Gateways supporting the requested scope can change over time without
any notice to the Route author, and in many situations it will not be
appropriate to request a default Gateway for a given Route -- for
example, a Route with specific security requirements should almost
certainly not use a default Gateway.
enum:
- All
- None
type: string
type: object
status:
description: Status defines the current state of HTTPRoute.
properties:
parents:
description: |-
Parents is a list of parent resources (usually Gateways) that are
associated with the route, and the status of the route with respect to
each parent. When this route attaches to a parent, the controller that
manages the parent must add an entry to this list when the controller
first sees the route and should update the entry as appropriate when the
route or gateway is modified.
Note that parent references that cannot be resolved by an implementation
of this API will not be added to this list. Implementations of this API
can only populate Route status for the Gateways/parent resources they are
responsible for.
A maximum of 32 Gateways will be represented in this list. An empty list
means the route has not been attached to any Gateway.
items:
description: |-
RouteParentStatus describes the status of a route with respect to an
associated Parent.
properties:
conditions:
description: |-
Conditions describes the status of the route with respect to the Gateway.
Note that the route's availability is also subject to the Gateway's own
status conditions and listener status.
If the Route's ParentRef specifies an existing Gateway that supports
Routes of this kind AND that Gateway's controller has sufficient access,
then that Gateway's controller MUST set the "Accepted" condition on the
Route, to indicate whether the route has been accepted or rejected by the
Gateway, and why.
A Route MUST be considered "Accepted" if at least one of the Route's
rules is implemented by the Gateway.
There are a number of cases where the "Accepted" condition may not be set
due to lack of controller visibility, that includes when:
* The Route refers to a nonexistent parent.
* The Route is of a type that the controller does not support.
* The Route is in a namespace the controller does not have access to.
items:
description: Condition contains details for one aspect of the current state of this API Resource.
properties:
lastTransitionTime:
description: |-
lastTransitionTime is the last time the condition transitioned from one status to another.
This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.
format: date-time
type: string
message:
description: |-
message is a human readable message indicating details about the transition.
This may be an empty string.
maxLength: 32768
type: string
observedGeneration:
description: |-
observedGeneration represents the .metadata.generation that the condition was set based upon.
For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
with respect to the current state of the instance.
format: int64
minimum: 0
type: integer
reason:
description: |-
reason contains a programmatic identifier indicating the reason for the condition's last transition.
Producers of specific condition types may define expected values and meanings for this field,
and whether the values are considered a guaranteed API.
The value should be a CamelCase string.
This field may not be empty.
maxLength: 1024
minLength: 1
pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
type: string
status:
description: status of the condition, one of True, False, Unknown.
enum:
- "True"
- "False"
- Unknown
type: string
type:
description: type of condition in CamelCase or in foo.example.com/CamelCase.
maxLength: 316
pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
type: string
required:
- lastTransitionTime
- message
- reason
- status
- type
type: object
maxItems: 8
minItems: 1
type: array
x-kubernetes-list-map-keys:
- type
x-kubernetes-list-type: map
controllerName:
description: |-
ControllerName is a domain/path string that indicates the name of the
controller that wrote this status. This corresponds with the
controllerName field on GatewayClass.
Example: "example.net/gateway-controller".
The format of this field is DOMAIN "/" PATH, where DOMAIN and PATH are
valid Kubernetes names
(https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names).
Controllers MUST populate this field when writing status. Controllers should ensure that
entries to status populated with their ControllerName are cleaned up when they are no
longer necessary.
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
type: string
parentRef:
description: |-
ParentRef corresponds with a ParentRef in the spec that this
RouteParentStatus struct describes the status of.
properties:
group:
default: gateway.networking.k8s.io
description: |-
Group is the group of the referent.
When unspecified, "gateway.networking.k8s.io" is inferred.
To set the core API group (such as for a "Service" kind referent),
Group must be explicitly set to "" (empty string).
Support: Core
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Gateway
description: |-
Kind is kind of the referent.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
Support for other resources is Implementation-Specific.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: |-
Name is the name of the referent.
Support: Core
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the referent. When unspecified, this refers
to the local namespace of the Route.
Note that there are specific rules for ParentRefs which cross namespace
boundaries. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example:
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable any other kind of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port is the network port this Route targets. It can be interpreted
differently based on the type of parent resource.
When the parent resource is a Gateway, this targets all listeners
listening on the specified port that also support this kind of Route(and
select this Route). It's not recommended to set `Port` unless the
networking behaviors specified in a Route must apply to a specific port
as opposed to a listener(s) whose port(s) may be changed. When both Port
and SectionName are specified, the name and port of the selected listener
must match both specified values.
When the parent resource is a Service, this targets a specific port in the
Service spec. When both Port (experimental) and SectionName are specified,
the name and port of the selected port must match both specified values.
Implementations MAY choose to support other parent resources.
Implementations supporting other types of parent resources MUST clearly
document how/if Port is interpreted.
For the purpose of status, an attachment is considered successful as
long as the parent resource accepts it partially. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment
from the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route,
the Route MUST be considered detached from the Gateway.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
sectionName:
description: |-
SectionName is the name of a section within the target resource. In the
following resources, SectionName is interpreted as the following:
* Gateway: Listener name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
* Service: Port name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
Implementations MAY choose to support attaching Routes to other resources.
If that is the case, they MUST clearly document how SectionName is
interpreted.
When unspecified (empty string), this will reference the entire resource.
For the purpose of status, an attachment is considered successful if at
least one section in the parent resource accepts it. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from
the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route, the
Route MUST be considered detached from the Gateway.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
required:
- conditions
- controllerName
- parentRef
type: object
maxItems: 32
type: array
x-kubernetes-list-type: atomic
required:
- parents
type: object
required:
- spec
type: object
served: true
storage: true
subresources:
status: {}
- additionalPrinterColumns:
- jsonPath: .spec.hostnames
name: Hostnames
type: string
- jsonPath: .metadata.creationTimestamp
name: Age
type: date
name: v1beta1
schema:
openAPIV3Schema:
description: |-
HTTPRoute provides a way to route HTTP requests. This includes the capability
to match requests by hostname, path, header, or query param. Filters can be
used to specify additional processing steps. Backends specify where matching
requests should be routed.
properties:
apiVersion:
description: |-
APIVersion defines the versioned schema of this representation of an object.
Servers should convert recognized schemas to the latest internal value, and
may reject unrecognized values.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
type: string
kind:
description: |-
Kind is a string value representing the REST resource this object represents.
Servers may infer this from the endpoint the client submits requests to.
Cannot be updated.
In CamelCase.
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
type: string
metadata:
type: object
spec:
description: Spec defines the desired state of HTTPRoute.
properties:
hostnames:
description: |-
Hostnames defines a set of hostnames that should match against the HTTP Host
header to select a HTTPRoute used to process the request. Implementations
MUST ignore any port value specified in the HTTP Host header while
performing a match and (absent of any applicable header modification
configuration) MUST forward this header unmodified to the backend.
Valid values for Hostnames are determined by RFC 1123 definition of a
hostname with 2 notable exceptions:
1. IPs are not allowed.
2. A hostname may be prefixed with a wildcard label (`*.`). The wildcard
label must appear by itself as the first label.
If a hostname is specified by both the Listener and HTTPRoute, there
must be at least one intersecting hostname for the HTTPRoute to be
attached to the Listener. For example:
* A Listener with `test.example.com` as the hostname matches HTTPRoutes
that have either not specified any hostnames, or have specified at
least one of `test.example.com` or `*.example.com`.
* A Listener with `*.example.com` as the hostname matches HTTPRoutes
that have either not specified any hostnames or have specified at least
one hostname that matches the Listener hostname. For example,
`*.example.com`, `test.example.com`, and `foo.test.example.com` would
all match. On the other hand, `example.com` and `test.example.net` would
not match.
Hostnames that are prefixed with a wildcard label (`*.`) are interpreted
as a suffix match. That means that a match for `*.example.com` would match
both `test.example.com`, and `foo.test.example.com`, but not `example.com`.
If both the Listener and HTTPRoute have specified hostnames, any
HTTPRoute hostnames that do not match the Listener hostname MUST be
ignored. For example, if a Listener specified `*.example.com`, and the
HTTPRoute specified `test.example.com` and `test.example.net`,
`test.example.net` must not be considered for a match.
If both the Listener and HTTPRoute have specified hostnames, and none
match with the criteria above, then the HTTPRoute is not accepted. The
implementation must raise an 'Accepted' Condition with a status of
`False` in the corresponding RouteParentStatus.
In the event that multiple HTTPRoutes specify intersecting hostnames (e.g.
overlapping wildcard matching and exact matching hostnames), precedence must
be given to rules from the HTTPRoute with the largest number of:
* Characters in a matching non-wildcard hostname.
* Characters in a matching hostname.
If ties exist across multiple Routes, the matching precedence rules for
HTTPRouteMatches takes over.
Support: Core
items:
description: |-
Hostname is the fully qualified domain name of a network host. This matches
the RFC 1123 definition of a hostname with 2 notable exceptions:
1. IPs are not allowed.
2. A hostname may be prefixed with a wildcard label (`*.`). The wildcard
label must appear by itself as the first label.
Hostname can be "precise" which is a domain name without the terminating
dot of a network host (e.g. "foo.example.com") or "wildcard", which is a
domain name prefixed with a single wildcard label (e.g. `*.example.com`).
Note that as per RFC1035 and RFC1123, a *label* must consist of lower case
alphanumeric characters or '-', and must start and end with an alphanumeric
character. No other punctuation is allowed.
maxLength: 253
minLength: 1
pattern: ^(\*\.)?[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
maxItems: 16
type: array
x-kubernetes-list-type: atomic
parentRefs:
description: |-
ParentRefs references the resources (usually Gateways) that a Route wants
to be attached to. Note that the referenced parent resource needs to
allow this for the attachment to be complete. For Gateways, that means
the Gateway needs to allow attachment from Routes of this kind and
namespace. For Services, that means the Service must either be in the same
namespace for a "producer" route, or the mesh implementation must support
and allow "consumer" routes for the referenced Service. ReferenceGrant is
not applicable for governing ParentRefs to Services - it is not possible to
create a "producer" route for a Service in a different namespace from the
Route.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
This API may be extended in the future to support additional kinds of parent
resources.
ParentRefs must be _distinct_. This means either that:
* They select different objects. If this is the case, then parentRef
entries are distinct. In terms of fields, this means that the
multi-part key defined by `group`, `kind`, `namespace`, and `name` must
be unique across all parentRef entries in the Route.
* They do not select different objects, but for each optional field used,
each ParentRef that selects the same object must set the same set of
optional fields to different values. If one ParentRef sets a
combination of optional fields, all must set the same combination.
Some examples:
* If one ParentRef sets `sectionName`, all ParentRefs referencing the
same object must also set `sectionName`.
* If one ParentRef sets `port`, all ParentRefs referencing the same
object must also set `port`.
* If one ParentRef sets `sectionName` and `port`, all ParentRefs
referencing the same object must also set `sectionName` and `port`.
It is possible to separately reference multiple distinct objects that may
be collapsed by an implementation. For example, some implementations may
choose to merge compatible Gateway Listeners together. If that is the
case, the list of routes attached to those resources should also be
merged.
Note that for ParentRefs that cross namespace boundaries, there are specific
rules. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example,
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable other kinds of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
items:
description: |-
ParentReference identifies an API object (usually a Gateway) that can be considered
a parent of this resource (usually a route). There are two kinds of parent resources
with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
This API may be extended in the future to support additional kinds of parent
resources.
The API object must be valid in the cluster; the Group and Kind must
be registered in the cluster for this reference to be valid.
properties:
group:
default: gateway.networking.k8s.io
description: |-
Group is the group of the referent.
When unspecified, "gateway.networking.k8s.io" is inferred.
To set the core API group (such as for a "Service" kind referent),
Group must be explicitly set to "" (empty string).
Support: Core
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Gateway
description: |-
Kind is kind of the referent.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
Support for other resources is Implementation-Specific.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: |-
Name is the name of the referent.
Support: Core
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the referent. When unspecified, this refers
to the local namespace of the Route.
Note that there are specific rules for ParentRefs which cross namespace
boundaries. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example:
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable any other kind of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port is the network port this Route targets. It can be interpreted
differently based on the type of parent resource.
When the parent resource is a Gateway, this targets all listeners
listening on the specified port that also support this kind of Route(and
select this Route). It's not recommended to set `Port` unless the
networking behaviors specified in a Route must apply to a specific port
as opposed to a listener(s) whose port(s) may be changed. When both Port
and SectionName are specified, the name and port of the selected listener
must match both specified values.
When the parent resource is a Service, this targets a specific port in the
Service spec. When both Port (experimental) and SectionName are specified,
the name and port of the selected port must match both specified values.
Implementations MAY choose to support other parent resources.
Implementations supporting other types of parent resources MUST clearly
document how/if Port is interpreted.
For the purpose of status, an attachment is considered successful as
long as the parent resource accepts it partially. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment
from the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route,
the Route MUST be considered detached from the Gateway.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
sectionName:
description: |-
SectionName is the name of a section within the target resource. In the
following resources, SectionName is interpreted as the following:
* Gateway: Listener name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
* Service: Port name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
Implementations MAY choose to support attaching Routes to other resources.
If that is the case, they MUST clearly document how SectionName is
interpreted.
When unspecified (empty string), this will reference the entire resource.
For the purpose of status, an attachment is considered successful if at
least one section in the parent resource accepts it. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from
the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route, the
Route MUST be considered detached from the Gateway.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
maxItems: 32
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: sectionName or port must be specified when parentRefs includes 2 or more references to the same parent
rule: 'self.all(p1, self.all(p2, p1.group == p2.group && p1.kind == p2.kind && p1.name == p2.name && (((!has(p1.__namespace__) || p1.__namespace__ == '''') && (!has(p2.__namespace__) || p2.__namespace__ == '''')) || (has(p1.__namespace__) && has(p2.__namespace__) && p1.__namespace__ == p2.__namespace__)) ? ((!has(p1.sectionName) || p1.sectionName == '''') == (!has(p2.sectionName) || p2.sectionName == '''') && (!has(p1.port) || p1.port == 0) == (!has(p2.port) || p2.port == 0)): true))'
- message: sectionName or port must be unique when parentRefs includes 2 or more references to the same parent
rule: self.all(p1, self.exists_one(p2, p1.group == p2.group && p1.kind == p2.kind && p1.name == p2.name && (((!has(p1.__namespace__) || p1.__namespace__ == '') && (!has(p2.__namespace__) || p2.__namespace__ == '')) || (has(p1.__namespace__) && has(p2.__namespace__) && p1.__namespace__ == p2.__namespace__ )) && (((!has(p1.sectionName) || p1.sectionName == '') && (!has(p2.sectionName) || p2.sectionName == '')) || ( has(p1.sectionName) && has(p2.sectionName) && p1.sectionName == p2.sectionName)) && (((!has(p1.port) || p1.port == 0) && (!has(p2.port) || p2.port == 0)) || (has(p1.port) && has(p2.port) && p1.port == p2.port))))
rules:
default:
- matches:
- path:
type: PathPrefix
value: /
description: Rules are a list of HTTP matchers, filters and actions.
items:
description: |-
HTTPRouteRule defines semantics for matching an HTTP request based on
conditions (matches), processing it (filters), and forwarding the request to
an API object (backendRefs).
properties:
backendRefs:
description: |-
BackendRefs defines the backend(s) where matching requests should be
sent.
Failure behavior here depends on how many BackendRefs are specified and
how many are invalid.
If *all* entries in BackendRefs are invalid, and there are also no filters
specified in this route rule, *all* traffic which matches this rule MUST
receive a 500 status code.
See the HTTPBackendRef definition for the rules about what makes a single
HTTPBackendRef invalid.
When a HTTPBackendRef is invalid, 500 status codes MUST be returned for
requests that would have otherwise been routed to an invalid backend. If
multiple backends are specified, and some are invalid, the proportion of
requests that would otherwise have been routed to an invalid backend
MUST receive a 500 status code.
For example, if two backends are specified with equal weights, and one is
invalid, 50 percent of traffic must receive a 500. Implementations may
choose how that 50 percent is determined.
When a HTTPBackendRef refers to a Service that has no ready endpoints,
implementations SHOULD return a 503 for requests to that backend instead.
If an implementation chooses to do this, all of the above rules for 500 responses
MUST also apply for responses that return a 503.
Support: Core for Kubernetes Service
Support: Extended for Kubernetes ServiceImport
Support: Implementation-specific for any other resource
Support for weight: Core
items:
description: |-
HTTPBackendRef defines how a HTTPRoute forwards a HTTP request.
Note that when a namespace different than the local namespace is specified, a
ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
When the BackendRef points to a Kubernetes Service, implementations SHOULD
honor the appProtocol field if it is set for the target Service Port.
Implementations supporting appProtocol SHOULD recognize the Kubernetes
Standard Application Protocols defined in KEP-3726.
If a Service appProtocol isn't specified, an implementation MAY infer the
backend protocol through its own means. Implementations MAY infer the
protocol from the Route type referring to the backend Service.
If a Route is not able to send traffic to the backend using the specified
protocol then the backend is considered invalid. Implementations MUST set the
"ResolvedRefs" condition to "False" with the "UnsupportedProtocol" reason.
properties:
filters:
description: |-
Filters defined at this level should be executed if and only if the
request is being forwarded to the backend defined here.
Support: Implementation-specific (For broader support of filters, use the
Filters field in HTTPRouteRule.)
items:
description: |-
HTTPRouteFilter defines processing steps that must be completed during the
request or response lifecycle. HTTPRouteFilters are meant as an extension
point to express processing that may be done in Gateway implementations. Some
examples include request or response modification, implementing
authentication strategies, rate-limiting, and traffic shaping. API
guarantee/conformance is defined based on the type of the filter.
properties:
cors:
description: |-
CORS defines a schema for a filter that responds to the
cross-origin request based on HTTP response header.
Support: Extended
properties:
allowCredentials:
description: |-
AllowCredentials indicates whether the actual cross-origin request allows
to include credentials.
When set to true, the gateway will include the `Access-Control-Allow-Credentials`
response header with value true (case-sensitive).
When set to false or omitted the gateway will omit the header
`Access-Control-Allow-Credentials` entirely (this is the standard CORS
behavior).
Support: Extended
type: boolean
allowHeaders:
description: |-
AllowHeaders indicates which HTTP request headers are supported for
accessing the requested resource.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Allow-Headers`
response header are separated by a comma (",").
When the `AllowHeaders` field is configured with one or more headers, the
gateway must return the `Access-Control-Allow-Headers` response header
which value is present in the `AllowHeaders` field.
If any header name in the `Access-Control-Request-Headers` request header
is not included in the list of header names specified by the response
header `Access-Control-Allow-Headers`, it will present an error on the
client side.
If any header name in the `Access-Control-Allow-Headers` response header
does not recognize by the client, it will also occur an error on the
client side.
A wildcard indicates that the requests with all HTTP headers are allowed.
The `Access-Control-Allow-Headers` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowHeaders` field
specified with the `*` wildcard, the gateway must specify one or more
HTTP headers in the value of the `Access-Control-Allow-Headers` response
header. The value of the header `Access-Control-Allow-Headers` is same as
the `Access-Control-Request-Headers` header provided by the client. If
the header `Access-Control-Request-Headers` is not included in the
request, the gateway will omit the `Access-Control-Allow-Headers`
response header, instead of specifying the `*` wildcard. A Gateway
implementation may choose to add implementation-specific default headers.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
allowMethods:
description: |-
AllowMethods indicates which HTTP methods are supported for accessing the
requested resource.
Valid values are any method defined by RFC9110, along with the special
value `*`, which represents all HTTP methods are allowed.
Method names are case sensitive, so these values are also case-sensitive.
(See https://www.rfc-editor.org/rfc/rfc2616#section-5.1.1)
Multiple method names in the value of the `Access-Control-Allow-Methods`
response header are separated by a comma (",").
A CORS-safelisted method is a method that is `GET`, `HEAD`, or `POST`.
(See https://fetch.spec.whatwg.org/#cors-safelisted-method) The
CORS-safelisted methods are always allowed, regardless of whether they
are specified in the `AllowMethods` field.
When the `AllowMethods` field is configured with one or more methods, the
gateway must return the `Access-Control-Allow-Methods` response header
which value is present in the `AllowMethods` field.
If the HTTP method of the `Access-Control-Request-Method` request header
is not included in the list of methods specified by the response header
`Access-Control-Allow-Methods`, it will present an error on the client
side.
The `Access-Control-Allow-Methods` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowMethods` field
specified with the `*` wildcard, the gateway must specify one HTTP method
in the value of the Access-Control-Allow-Methods response header. The
value of the header `Access-Control-Allow-Methods` is same as the
`Access-Control-Request-Method` header provided by the client. If the
header `Access-Control-Request-Method` is not included in the request,
the gateway will omit the `Access-Control-Allow-Methods` response header,
instead of specifying the `*` wildcard. A Gateway implementation may
choose to add implementation-specific default methods.
Support: Extended
items:
enum:
- GET
- HEAD
- POST
- PUT
- DELETE
- CONNECT
- OPTIONS
- TRACE
- PATCH
- '*'
type: string
maxItems: 9
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowMethods cannot contain '*' alongside other methods
rule: '!(''*'' in self && self.size() > 1)'
allowOrigins:
description: |-
AllowOrigins indicates whether the response can be shared with requested
resource from the given `Origin`.
The `Origin` consists of a scheme and a host, with an optional port, and
takes the form `<scheme>://<host>(:<port>)`.
Valid values for scheme are: `http` and `https`.
Valid values for port are any integer between 1 and 65535 (the list of
available TCP/UDP ports). Note that, if not included, port `80` is
assumed for `http` scheme origins, and port `443` is assumed for `https`
origins. This may affect origin matching.
The host part of the origin may contain the wildcard character `*`. These
wildcard characters behave as follows:
* `*` is a greedy match to the _left_, including any number of
DNS labels to the left of its position. This also means that
`*` will include any number of period `.` characters to the
left of its position.
* A wildcard by itself matches all hosts.
An origin value that includes _only_ the `*` character indicates requests
from all `Origin`s are allowed.
When the `AllowOrigins` field is configured with multiple origins, it
means the server supports clients from multiple origins. If the request
`Origin` matches the configured allowed origins, the gateway must return
the given `Origin` and sets value of the header
`Access-Control-Allow-Origin` same as the `Origin` header provided by the
client.
The status code of a successful response to a "preflight" request is
always an OK status (i.e., 204 or 200).
If the request `Origin` does not match the configured allowed origins,
the gateway returns 204/200 response but doesn't set the relevant
cross-origin response headers. Alternatively, the gateway responds with
403 status to the "preflight" request is denied, coupled with omitting
the CORS headers. The cross-origin request fails on the client side.
Therefore, the client doesn't attempt the actual cross-origin request.
The `Access-Control-Allow-Origin` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowOrigins` field
specified with the `*` wildcard, the gateway must return a single origin
in the value of the `Access-Control-Allow-Origin` response header,
instead of specifying the `*` wildcard. The value of the header
`Access-Control-Allow-Origin` is same as the `Origin` header provided by
the client.
Support: Extended
items:
description: |-
The CORSOrigin MUST NOT be a relative URI, and it MUST follow the URI syntax and
encoding rules specified in RFC3986. The CORSOrigin MUST include both a
scheme (e.g., "http" or "spiffe") and a scheme-specific-part, or it should be a single '*' character.
URIs that include an authority MUST include a fully qualified domain name or
IP address as the host.
maxLength: 253
minLength: 1
pattern: (^\*$)|(^([a-zA-Z][a-zA-Z0-9+\-.]+):\/\/([^:/?#]+)(:([0-9]{1,5}))?$)
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowOrigins cannot contain '*' alongside other origins
rule: '!(''*'' in self && self.size() > 1)'
exposeHeaders:
description: |-
ExposeHeaders indicates which HTTP response headers can be exposed
to client-side scripts in response to a cross-origin request.
A CORS-safelisted response header is an HTTP header in a CORS response
that it is considered safe to expose to the client scripts.
The CORS-safelisted response headers include the following headers:
`Cache-Control`
`Content-Language`
`Content-Length`
`Content-Type`
`Expires`
`Last-Modified`
`Pragma`
(See https://fetch.spec.whatwg.org/#cors-safelisted-response-header-name)
The CORS-safelisted response headers are exposed to client by default.
When an HTTP header name is specified using the `ExposeHeaders` field,
this additional header will be exposed as part of the response to the
client.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Expose-Headers`
response header are separated by a comma (",").
A wildcard indicates that the responses with all HTTP headers are exposed
to clients. The `Access-Control-Expose-Headers` response header can only
use `*` wildcard as value when the `AllowCredentials` field is false or omitted.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
maxAge:
default: 5
description: |-
MaxAge indicates the duration (in seconds) for the client to cache the
results of a "preflight" request.
The information provided by the `Access-Control-Allow-Methods` and
`Access-Control-Allow-Headers` response headers can be cached by the
client until the time specified by `Access-Control-Max-Age` elapses.
The default value of `Access-Control-Max-Age` response header is 5
(seconds).
format: int32
minimum: 1
type: integer
type: object
extensionRef:
description: |-
ExtensionRef is an optional, implementation-specific extension to the
"filter" behavior. For example, resource "myroutefilter" in group
"networking.example.net"). ExtensionRef MUST NOT be used for core and
extended filters.
This filter can be used multiple times within the same rule.
Support: Implementation-specific
properties:
group:
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is kind of the referent. For example "HTTPRoute" or "Service".
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
required:
- group
- kind
- name
type: object
externalAuth:
description: |-
ExternalAuth configures settings related to sending request details
to an external auth service. The external service MUST authenticate
the request, and MAY authorize the request as well.
If there is any problem communicating with the external service,
this filter MUST fail closed.
Support: Extended
properties:
backendRef:
description: |-
BackendRef is a reference to a backend to send authorization
requests to.
The backend must speak the selected protocol (GRPC or HTTP) on the
referenced port.
If the backend service requires TLS, use BackendTLSPolicy to tell the
implementation to supply the TLS details to be used to connect to that
backend.
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
forwardBody:
description: |-
ForwardBody controls if requests to the authorization server should include
the body of the client request; and if so, how big that body is allowed
to be.
It is expected that implementations will buffer the request body up to
`forwardBody.maxSize` bytes. Bodies over that size must be rejected with a
4xx series error (413 or 403 are common examples), and fail processing
of the filter.
If unset, or `forwardBody.maxSize` is set to `0`, then the body will not
be forwarded.
Feature Name: HTTPRouteExternalAuthForwardBody
properties:
maxSize:
description: |-
MaxSize specifies how large in bytes the largest body that will be buffered
and sent to the authorization server. If the body size is larger than
`maxSize`, then the body sent to the authorization server must be
truncated to `maxSize` bytes.
Experimental note: This behavior needs to be checked against
various dataplanes; it may need to be changed.
See https://github.com/kubernetes-sigs/gateway-api/pull/4001#discussion_r2291405746
for more.
If 0, the body will not be sent to the authorization server.
type: integer
type: object
grpc:
description: |-
GRPCAuthConfig contains configuration for communication with ext_authz
protocol-speaking backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what headers from the client request
will be sent to the authorization server.
If this list is empty, then all headers must be sent.
If the list has entries, only those entries must be sent.
items:
type: string
type: array
x-kubernetes-list-type: set
type: object
http:
description: |-
HTTPAuthConfig contains configuration for communication with HTTP-speaking
backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what additional headers from the client request
will be sent to the authorization server.
The following headers must always be sent to the authorization server,
regardless of this setting:
* `Host`
* `Method`
* `Path`
* `Content-Length`
* `Authorization`
If this list is empty, then only those headers must be sent.
Note that `Content-Length` has a special behavior, in that the length
sent must be correct for the actual request to the external authorization
server - that is, it must reflect the actual number of bytes sent in the
body of the request to the authorization server.
So if the `forwardBody` stanza is unset, or `forwardBody.maxSize` is set
to `0`, then `Content-Length` must be `0`. If `forwardBody.maxSize` is set
to anything other than `0`, then the `Content-Length` of the authorization
request must be set to the actual number of bytes forwarded.
items:
type: string
type: array
x-kubernetes-list-type: set
allowedResponseHeaders:
description: |-
AllowedResponseHeaders specifies what headers from the authorization response
will be copied into the request to the backend.
If this list is empty, then all headers from the authorization server
except Authority or Host must be copied.
items:
type: string
type: array
x-kubernetes-list-type: set
path:
description: |-
Path sets the prefix that paths from the client request will have added
when forwarded to the authorization server.
When empty or unspecified, no prefix is added.
Valid values are the same as the "value" regex for path values in the `match`
stanza, and the validation regex will screen out invalid paths in the same way.
Even with the validation, implementations MUST sanitize this input before using it
directly.
maxLength: 1024
pattern: ^(?:[-A-Za-z0-9/._~!$&'()*+,;=:@]|[%][0-9a-fA-F]{2})+$
type: string
type: object
protocol:
description: |-
ExternalAuthProtocol describes which protocol to use when communicating with an
ext_authz authorization server.
When this is set to GRPC, each backend must use the Envoy ext_authz protocol
on the port specified in `backendRefs`. Requests and responses are defined
in the protobufs explained at:
https://www.envoyproxy.io/docs/envoy/latest/api-v3/service/auth/v3/external_auth.proto
When this is set to HTTP, each backend must respond with a `200` status
code in on a successful authorization. Any other code is considered
an authorization failure.
Feature Names:
GRPC Support - HTTPRouteExternalAuthGRPC
HTTP Support - HTTPRouteExternalAuthHTTP
enum:
- HTTP
- GRPC
type: string
required:
- backendRef
- protocol
type: object
x-kubernetes-validations:
- message: grpc must be specified when protocol is set to 'GRPC'
rule: 'self.protocol == ''GRPC'' ? has(self.grpc) : true'
- message: protocol must be 'GRPC' when grpc is set
rule: 'has(self.grpc) ? self.protocol == ''GRPC'' : true'
- message: http must be specified when protocol is set to 'HTTP'
rule: 'self.protocol == ''HTTP'' ? has(self.http) : true'
- message: protocol must be 'HTTP' when http is set
rule: 'has(self.http) ? self.protocol == ''HTTP'' : true'
requestHeaderModifier:
description: |-
RequestHeaderModifier defines a schema for a filter that modifies request
headers.
Support: Core
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
requestMirror:
description: |-
RequestMirror defines a schema for a filter that mirrors requests.
Requests are sent to the specified destination, but responses from
that destination are ignored.
This filter can be used multiple times within the same rule. Note that
not all implementations will be able to support mirroring to multiple
backends.
Support: Extended
properties:
backendRef:
description: |-
BackendRef references a resource where mirrored requests are sent.
Mirrored requests must be sent only to a single destination endpoint
within this BackendRef, irrespective of how many endpoints are present
within this BackendRef.
If the referent cannot be found, this BackendRef is invalid and must be
dropped from the Gateway. The controller must ensure the "ResolvedRefs"
condition on the Route status is set to `status: False` and not configure
this backend in the underlying implementation.
If there is a cross-namespace reference to an *existing* object
that is not allowed by a ReferenceGrant, the controller must ensure the
"ResolvedRefs" condition on the Route is set to `status: False`,
with the "RefNotPermitted" reason and not configure this backend in the
underlying implementation.
In either error case, the Message of the `ResolvedRefs` Condition
should be used to provide more detail about the problem.
Support: Extended for Kubernetes Service
Support: Implementation-specific for any other resource
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
fraction:
description: |-
Fraction represents the fraction of requests that should be
mirrored to BackendRef.
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
properties:
denominator:
default: 100
format: int32
minimum: 1
type: integer
numerator:
format: int32
minimum: 0
type: integer
required:
- numerator
type: object
x-kubernetes-validations:
- message: numerator must be less than or equal to denominator
rule: self.numerator <= self.denominator
percent:
description: |-
Percent represents the percentage of requests that should be
mirrored to BackendRef. Its minimum value is 0 (indicating 0% of
requests) and its maximum value is 100 (indicating 100% of requests).
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
format: int32
maximum: 100
minimum: 0
type: integer
required:
- backendRef
type: object
x-kubernetes-validations:
- message: Only one of percent or fraction may be specified in HTTPRequestMirrorFilter
rule: '!(has(self.percent) && has(self.fraction))'
requestRedirect:
description: |-
RequestRedirect defines a schema for a filter that responds to the
request with an HTTP redirection.
Support: Core
properties:
hostname:
description: |-
Hostname is the hostname to be used in the value of the `Location`
header in the response.
When empty, the hostname in the `Host` header of the request is used.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines parameters used to modify the path of the incoming request.
The modified path is then used to construct the `Location` header. When
empty, the request path is used as-is.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
port:
description: |-
Port is the port to be used in the value of the `Location`
header in the response.
If no port is specified, the redirect port MUST be derived using the
following rules:
* If redirect scheme is not-empty, the redirect port MUST be the well-known
port associated with the redirect scheme. Specifically "http" to port 80
and "https" to port 443. If the redirect scheme does not have a
well-known port, the listener port of the Gateway SHOULD be used.
* If redirect scheme is empty, the redirect port MUST be the Gateway
Listener port.
Implementations SHOULD NOT add the port number in the 'Location'
header in the following cases:
* A Location header that will use HTTP (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 80.
* A Location header that will use HTTPS (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 443.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
scheme:
description: |-
Scheme is the scheme to be used in the value of the `Location` header in
the response. When empty, the scheme of the request is used.
Scheme redirects can affect the port of the redirect, for more information,
refer to the documentation for the port field of this filter.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Extended
enum:
- http
- https
type: string
statusCode:
default: 302
description: |-
StatusCode is the HTTP status code to be used in response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Core
enum:
- 301
- 302
type: integer
type: object
responseHeaderModifier:
description: |-
ResponseHeaderModifier defines a schema for a filter that modifies response
headers.
Support: Extended
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
type:
description: |-
Type identifies the type of filter to apply. As with other API fields,
types are classified into three conformance levels:
- Core: Filter types and their corresponding configuration defined by
"Support: Core" in this package, e.g. "RequestHeaderModifier". All
implementations must support core filters.
- Extended: Filter types and their corresponding configuration defined by
"Support: Extended" in this package, e.g. "RequestMirror". Implementers
are encouraged to support extended filters.
- Implementation-specific: Filters that are defined and supported by
specific vendors.
In the future, filters showing convergence in behavior across multiple
implementations will be considered for inclusion in extended or core
conformance levels. Filter-specific configuration for such filters
is specified using the ExtensionRef field. `Type` should be set to
"ExtensionRef" for custom filters.
Implementers are encouraged to define custom implementation types to
extend the core API with implementation-specific behavior.
If a reference to a custom filter type cannot be resolved, the filter
MUST NOT be skipped. Instead, requests that would have been processed by
that filter MUST receive a HTTP error response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- RequestHeaderModifier
- ResponseHeaderModifier
- RequestMirror
- RequestRedirect
- URLRewrite
- ExtensionRef
- CORS
- ExternalAuth
type: string
urlRewrite:
description: |-
URLRewrite defines a schema for a filter that modifies a request during forwarding.
Support: Extended
properties:
hostname:
description: |-
Hostname is the value to be used to replace the Host header value during
forwarding.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines a path rewrite.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
type: object
required:
- type
type: object
x-kubernetes-validations:
- message: filter.requestHeaderModifier must be nil if the filter.type is not RequestHeaderModifier
rule: '!(has(self.requestHeaderModifier) && self.type != ''RequestHeaderModifier'')'
- message: filter.requestHeaderModifier must be specified for RequestHeaderModifier filter.type
rule: '!(!has(self.requestHeaderModifier) && self.type == ''RequestHeaderModifier'')'
- message: filter.responseHeaderModifier must be nil if the filter.type is not ResponseHeaderModifier
rule: '!(has(self.responseHeaderModifier) && self.type != ''ResponseHeaderModifier'')'
- message: filter.responseHeaderModifier must be specified for ResponseHeaderModifier filter.type
rule: '!(!has(self.responseHeaderModifier) && self.type == ''ResponseHeaderModifier'')'
- message: filter.requestMirror must be nil if the filter.type is not RequestMirror
rule: '!(has(self.requestMirror) && self.type != ''RequestMirror'')'
- message: filter.requestMirror must be specified for RequestMirror filter.type
rule: '!(!has(self.requestMirror) && self.type == ''RequestMirror'')'
- message: filter.requestRedirect must be nil if the filter.type is not RequestRedirect
rule: '!(has(self.requestRedirect) && self.type != ''RequestRedirect'')'
- message: filter.requestRedirect must be specified for RequestRedirect filter.type
rule: '!(!has(self.requestRedirect) && self.type == ''RequestRedirect'')'
- message: filter.urlRewrite must be nil if the filter.type is not URLRewrite
rule: '!(has(self.urlRewrite) && self.type != ''URLRewrite'')'
- message: filter.urlRewrite must be specified for URLRewrite filter.type
rule: '!(!has(self.urlRewrite) && self.type == ''URLRewrite'')'
- message: filter.extensionRef must be nil if the filter.type is not ExtensionRef
rule: '!(has(self.extensionRef) && self.type != ''ExtensionRef'')'
- message: filter.extensionRef must be specified for ExtensionRef filter.type
rule: '!(!has(self.extensionRef) && self.type == ''ExtensionRef'')'
- message: filter.cors must be nil if the filter.type is not CORS
rule: '!(has(self.cors) && self.type != ''CORS'')'
- message: filter.cors must be specified for CORS filter.type
rule: '!(!has(self.cors) && self.type == ''CORS'')'
- message: filter.externalAuth must be nil if the filter.type is not ExternalAuth
rule: '!(has(self.externalAuth) && self.type != ''ExternalAuth'')'
- message: filter.externalAuth must be specified for ExternalAuth filter.type
rule: '!(!has(self.externalAuth) && self.type == ''ExternalAuth'')'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: May specify either httpRouteFilterRequestRedirect or httpRouteFilterRequestRewrite, but not both
rule: '!(self.exists(f, f.type == ''RequestRedirect'') && self.exists(f, f.type == ''URLRewrite''))'
- message: RequestHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'RequestHeaderModifier').size() <= 1
- message: ResponseHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'ResponseHeaderModifier').size() <= 1
- message: RequestRedirect filter cannot be repeated
rule: self.filter(f, f.type == 'RequestRedirect').size() <= 1
- message: URLRewrite filter cannot be repeated
rule: self.filter(f, f.type == 'URLRewrite').size() <= 1
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
weight:
default: 1
description: |-
Weight specifies the proportion of requests forwarded to the referenced
backend. This is computed as weight/(sum of all weights in this
BackendRefs list). For non-zero values, there may be some epsilon from
the exact proportion defined here depending on the precision an
implementation supports. Weight is not a percentage and the sum of
weights does not need to equal 100.
If only one backend is specified and it has a weight greater than 0, 100%
of the traffic is forwarded to that backend. If weight is set to 0, no
traffic should be forwarded for this entry. If unspecified, weight
defaults to 1.
Support for this field varies based on the context where used.
format: int32
maximum: 1000000
minimum: 0
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
filters:
description: |-
Filters define the filters that are applied to requests that match
this rule.
Wherever possible, implementations SHOULD implement filters in the order
they are specified.
Implementations MAY choose to implement this ordering strictly, rejecting
any combination or order of filters that cannot be supported. If implementations
choose a strict interpretation of filter ordering, they MUST clearly document
that behavior.
To reject an invalid combination or order of filters, implementations SHOULD
consider the Route Rules with this configuration invalid. If all Route Rules
in a Route are invalid, the entire Route would be considered invalid. If only
a portion of Route Rules are invalid, implementations MUST set the
"PartiallyInvalid" condition for the Route.
Conformance-levels at this level are defined based on the type of filter:
- ALL core filters MUST be supported by all implementations.
- Implementers are encouraged to support extended filters.
- Implementation-specific custom filters have no API guarantees across
implementations.
Specifying the same filter multiple times is not supported unless explicitly
indicated in the filter.
All filters are expected to be compatible with each other except for the
URLRewrite and RequestRedirect filters, which may not be combined. If an
implementation cannot support other combinations of filters, they must clearly
document that limitation. In cases where incompatible or unsupported
filters are specified and cause the `Accepted` condition to be set to status
`False`, implementations may use the `IncompatibleFilters` reason to specify
this configuration error.
Support: Core
items:
description: |-
HTTPRouteFilter defines processing steps that must be completed during the
request or response lifecycle. HTTPRouteFilters are meant as an extension
point to express processing that may be done in Gateway implementations. Some
examples include request or response modification, implementing
authentication strategies, rate-limiting, and traffic shaping. API
guarantee/conformance is defined based on the type of the filter.
properties:
cors:
description: |-
CORS defines a schema for a filter that responds to the
cross-origin request based on HTTP response header.
Support: Extended
properties:
allowCredentials:
description: |-
AllowCredentials indicates whether the actual cross-origin request allows
to include credentials.
When set to true, the gateway will include the `Access-Control-Allow-Credentials`
response header with value true (case-sensitive).
When set to false or omitted the gateway will omit the header
`Access-Control-Allow-Credentials` entirely (this is the standard CORS
behavior).
Support: Extended
type: boolean
allowHeaders:
description: |-
AllowHeaders indicates which HTTP request headers are supported for
accessing the requested resource.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Allow-Headers`
response header are separated by a comma (",").
When the `AllowHeaders` field is configured with one or more headers, the
gateway must return the `Access-Control-Allow-Headers` response header
which value is present in the `AllowHeaders` field.
If any header name in the `Access-Control-Request-Headers` request header
is not included in the list of header names specified by the response
header `Access-Control-Allow-Headers`, it will present an error on the
client side.
If any header name in the `Access-Control-Allow-Headers` response header
does not recognize by the client, it will also occur an error on the
client side.
A wildcard indicates that the requests with all HTTP headers are allowed.
The `Access-Control-Allow-Headers` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowHeaders` field
specified with the `*` wildcard, the gateway must specify one or more
HTTP headers in the value of the `Access-Control-Allow-Headers` response
header. The value of the header `Access-Control-Allow-Headers` is same as
the `Access-Control-Request-Headers` header provided by the client. If
the header `Access-Control-Request-Headers` is not included in the
request, the gateway will omit the `Access-Control-Allow-Headers`
response header, instead of specifying the `*` wildcard. A Gateway
implementation may choose to add implementation-specific default headers.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
allowMethods:
description: |-
AllowMethods indicates which HTTP methods are supported for accessing the
requested resource.
Valid values are any method defined by RFC9110, along with the special
value `*`, which represents all HTTP methods are allowed.
Method names are case sensitive, so these values are also case-sensitive.
(See https://www.rfc-editor.org/rfc/rfc2616#section-5.1.1)
Multiple method names in the value of the `Access-Control-Allow-Methods`
response header are separated by a comma (",").
A CORS-safelisted method is a method that is `GET`, `HEAD`, or `POST`.
(See https://fetch.spec.whatwg.org/#cors-safelisted-method) The
CORS-safelisted methods are always allowed, regardless of whether they
are specified in the `AllowMethods` field.
When the `AllowMethods` field is configured with one or more methods, the
gateway must return the `Access-Control-Allow-Methods` response header
which value is present in the `AllowMethods` field.
If the HTTP method of the `Access-Control-Request-Method` request header
is not included in the list of methods specified by the response header
`Access-Control-Allow-Methods`, it will present an error on the client
side.
The `Access-Control-Allow-Methods` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowMethods` field
specified with the `*` wildcard, the gateway must specify one HTTP method
in the value of the Access-Control-Allow-Methods response header. The
value of the header `Access-Control-Allow-Methods` is same as the
`Access-Control-Request-Method` header provided by the client. If the
header `Access-Control-Request-Method` is not included in the request,
the gateway will omit the `Access-Control-Allow-Methods` response header,
instead of specifying the `*` wildcard. A Gateway implementation may
choose to add implementation-specific default methods.
Support: Extended
items:
enum:
- GET
- HEAD
- POST
- PUT
- DELETE
- CONNECT
- OPTIONS
- TRACE
- PATCH
- '*'
type: string
maxItems: 9
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowMethods cannot contain '*' alongside other methods
rule: '!(''*'' in self && self.size() > 1)'
allowOrigins:
description: |-
AllowOrigins indicates whether the response can be shared with requested
resource from the given `Origin`.
The `Origin` consists of a scheme and a host, with an optional port, and
takes the form `<scheme>://<host>(:<port>)`.
Valid values for scheme are: `http` and `https`.
Valid values for port are any integer between 1 and 65535 (the list of
available TCP/UDP ports). Note that, if not included, port `80` is
assumed for `http` scheme origins, and port `443` is assumed for `https`
origins. This may affect origin matching.
The host part of the origin may contain the wildcard character `*`. These
wildcard characters behave as follows:
* `*` is a greedy match to the _left_, including any number of
DNS labels to the left of its position. This also means that
`*` will include any number of period `.` characters to the
left of its position.
* A wildcard by itself matches all hosts.
An origin value that includes _only_ the `*` character indicates requests
from all `Origin`s are allowed.
When the `AllowOrigins` field is configured with multiple origins, it
means the server supports clients from multiple origins. If the request
`Origin` matches the configured allowed origins, the gateway must return
the given `Origin` and sets value of the header
`Access-Control-Allow-Origin` same as the `Origin` header provided by the
client.
The status code of a successful response to a "preflight" request is
always an OK status (i.e., 204 or 200).
If the request `Origin` does not match the configured allowed origins,
the gateway returns 204/200 response but doesn't set the relevant
cross-origin response headers. Alternatively, the gateway responds with
403 status to the "preflight" request is denied, coupled with omitting
the CORS headers. The cross-origin request fails on the client side.
Therefore, the client doesn't attempt the actual cross-origin request.
The `Access-Control-Allow-Origin` response header can only use `*`
wildcard as value when the `AllowCredentials` field is false or omitted.
When the `AllowCredentials` field is true and `AllowOrigins` field
specified with the `*` wildcard, the gateway must return a single origin
in the value of the `Access-Control-Allow-Origin` response header,
instead of specifying the `*` wildcard. The value of the header
`Access-Control-Allow-Origin` is same as the `Origin` header provided by
the client.
Support: Extended
items:
description: |-
The CORSOrigin MUST NOT be a relative URI, and it MUST follow the URI syntax and
encoding rules specified in RFC3986. The CORSOrigin MUST include both a
scheme (e.g., "http" or "spiffe") and a scheme-specific-part, or it should be a single '*' character.
URIs that include an authority MUST include a fully qualified domain name or
IP address as the host.
maxLength: 253
minLength: 1
pattern: (^\*$)|(^([a-zA-Z][a-zA-Z0-9+\-.]+):\/\/([^:/?#]+)(:([0-9]{1,5}))?$)
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
x-kubernetes-validations:
- message: AllowOrigins cannot contain '*' alongside other origins
rule: '!(''*'' in self && self.size() > 1)'
exposeHeaders:
description: |-
ExposeHeaders indicates which HTTP response headers can be exposed
to client-side scripts in response to a cross-origin request.
A CORS-safelisted response header is an HTTP header in a CORS response
that it is considered safe to expose to the client scripts.
The CORS-safelisted response headers include the following headers:
`Cache-Control`
`Content-Language`
`Content-Length`
`Content-Type`
`Expires`
`Last-Modified`
`Pragma`
(See https://fetch.spec.whatwg.org/#cors-safelisted-response-header-name)
The CORS-safelisted response headers are exposed to client by default.
When an HTTP header name is specified using the `ExposeHeaders` field,
this additional header will be exposed as part of the response to the
client.
Header names are not case sensitive.
Multiple header names in the value of the `Access-Control-Expose-Headers`
response header are separated by a comma (",").
A wildcard indicates that the responses with all HTTP headers are exposed
to clients. The `Access-Control-Expose-Headers` response header can only
use `*` wildcard as value when the `AllowCredentials` field is false or omitted.
Support: Extended
items:
description: |-
HTTPHeaderName is the name of an HTTP header.
Valid values include:
* "Authorization"
* "Set-Cookie"
Invalid values include:
- ":method" - ":" is an invalid character. This means that HTTP/2 pseudo
headers are not currently supported by this type.
- "/invalid" - "/ " is an invalid character
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
maxItems: 64
type: array
x-kubernetes-list-type: set
maxAge:
default: 5
description: |-
MaxAge indicates the duration (in seconds) for the client to cache the
results of a "preflight" request.
The information provided by the `Access-Control-Allow-Methods` and
`Access-Control-Allow-Headers` response headers can be cached by the
client until the time specified by `Access-Control-Max-Age` elapses.
The default value of `Access-Control-Max-Age` response header is 5
(seconds).
format: int32
minimum: 1
type: integer
type: object
extensionRef:
description: |-
ExtensionRef is an optional, implementation-specific extension to the
"filter" behavior. For example, resource "myroutefilter" in group
"networking.example.net"). ExtensionRef MUST NOT be used for core and
extended filters.
This filter can be used multiple times within the same rule.
Support: Implementation-specific
properties:
group:
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is kind of the referent. For example "HTTPRoute" or "Service".
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
required:
- group
- kind
- name
type: object
externalAuth:
description: |-
ExternalAuth configures settings related to sending request details
to an external auth service. The external service MUST authenticate
the request, and MAY authorize the request as well.
If there is any problem communicating with the external service,
this filter MUST fail closed.
Support: Extended
properties:
backendRef:
description: |-
BackendRef is a reference to a backend to send authorization
requests to.
The backend must speak the selected protocol (GRPC or HTTP) on the
referenced port.
If the backend service requires TLS, use BackendTLSPolicy to tell the
implementation to supply the TLS details to be used to connect to that
backend.
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
forwardBody:
description: |-
ForwardBody controls if requests to the authorization server should include
the body of the client request; and if so, how big that body is allowed
to be.
It is expected that implementations will buffer the request body up to
`forwardBody.maxSize` bytes. Bodies over that size must be rejected with a
4xx series error (413 or 403 are common examples), and fail processing
of the filter.
If unset, or `forwardBody.maxSize` is set to `0`, then the body will not
be forwarded.
Feature Name: HTTPRouteExternalAuthForwardBody
properties:
maxSize:
description: |-
MaxSize specifies how large in bytes the largest body that will be buffered
and sent to the authorization server. If the body size is larger than
`maxSize`, then the body sent to the authorization server must be
truncated to `maxSize` bytes.
Experimental note: This behavior needs to be checked against
various dataplanes; it may need to be changed.
See https://github.com/kubernetes-sigs/gateway-api/pull/4001#discussion_r2291405746
for more.
If 0, the body will not be sent to the authorization server.
type: integer
type: object
grpc:
description: |-
GRPCAuthConfig contains configuration for communication with ext_authz
protocol-speaking backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what headers from the client request
will be sent to the authorization server.
If this list is empty, then all headers must be sent.
If the list has entries, only those entries must be sent.
items:
type: string
type: array
x-kubernetes-list-type: set
type: object
http:
description: |-
HTTPAuthConfig contains configuration for communication with HTTP-speaking
backends.
If unset, implementations must assume the default behavior for each
included field is intended.
properties:
allowedHeaders:
description: |-
AllowedRequestHeaders specifies what additional headers from the client request
will be sent to the authorization server.
The following headers must always be sent to the authorization server,
regardless of this setting:
* `Host`
* `Method`
* `Path`
* `Content-Length`
* `Authorization`
If this list is empty, then only those headers must be sent.
Note that `Content-Length` has a special behavior, in that the length
sent must be correct for the actual request to the external authorization
server - that is, it must reflect the actual number of bytes sent in the
body of the request to the authorization server.
So if the `forwardBody` stanza is unset, or `forwardBody.maxSize` is set
to `0`, then `Content-Length` must be `0`. If `forwardBody.maxSize` is set
to anything other than `0`, then the `Content-Length` of the authorization
request must be set to the actual number of bytes forwarded.
items:
type: string
type: array
x-kubernetes-list-type: set
allowedResponseHeaders:
description: |-
AllowedResponseHeaders specifies what headers from the authorization response
will be copied into the request to the backend.
If this list is empty, then all headers from the authorization server
except Authority or Host must be copied.
items:
type: string
type: array
x-kubernetes-list-type: set
path:
description: |-
Path sets the prefix that paths from the client request will have added
when forwarded to the authorization server.
When empty or unspecified, no prefix is added.
Valid values are the same as the "value" regex for path values in the `match`
stanza, and the validation regex will screen out invalid paths in the same way.
Even with the validation, implementations MUST sanitize this input before using it
directly.
maxLength: 1024
pattern: ^(?:[-A-Za-z0-9/._~!$&'()*+,;=:@]|[%][0-9a-fA-F]{2})+$
type: string
type: object
protocol:
description: |-
ExternalAuthProtocol describes which protocol to use when communicating with an
ext_authz authorization server.
When this is set to GRPC, each backend must use the Envoy ext_authz protocol
on the port specified in `backendRefs`. Requests and responses are defined
in the protobufs explained at:
https://www.envoyproxy.io/docs/envoy/latest/api-v3/service/auth/v3/external_auth.proto
When this is set to HTTP, each backend must respond with a `200` status
code in on a successful authorization. Any other code is considered
an authorization failure.
Feature Names:
GRPC Support - HTTPRouteExternalAuthGRPC
HTTP Support - HTTPRouteExternalAuthHTTP
enum:
- HTTP
- GRPC
type: string
required:
- backendRef
- protocol
type: object
x-kubernetes-validations:
- message: grpc must be specified when protocol is set to 'GRPC'
rule: 'self.protocol == ''GRPC'' ? has(self.grpc) : true'
- message: protocol must be 'GRPC' when grpc is set
rule: 'has(self.grpc) ? self.protocol == ''GRPC'' : true'
- message: http must be specified when protocol is set to 'HTTP'
rule: 'self.protocol == ''HTTP'' ? has(self.http) : true'
- message: protocol must be 'HTTP' when http is set
rule: 'has(self.http) ? self.protocol == ''HTTP'' : true'
requestHeaderModifier:
description: |-
RequestHeaderModifier defines a schema for a filter that modifies request
headers.
Support: Core
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
requestMirror:
description: |-
RequestMirror defines a schema for a filter that mirrors requests.
Requests are sent to the specified destination, but responses from
that destination are ignored.
This filter can be used multiple times within the same rule. Note that
not all implementations will be able to support mirroring to multiple
backends.
Support: Extended
properties:
backendRef:
description: |-
BackendRef references a resource where mirrored requests are sent.
Mirrored requests must be sent only to a single destination endpoint
within this BackendRef, irrespective of how many endpoints are present
within this BackendRef.
If the referent cannot be found, this BackendRef is invalid and must be
dropped from the Gateway. The controller must ensure the "ResolvedRefs"
condition on the Route status is set to `status: False` and not configure
this backend in the underlying implementation.
If there is a cross-namespace reference to an *existing* object
that is not allowed by a ReferenceGrant, the controller must ensure the
"ResolvedRefs" condition on the Route is set to `status: False`,
with the "RefNotPermitted" reason and not configure this backend in the
underlying implementation.
In either error case, the Message of the `ResolvedRefs` Condition
should be used to provide more detail about the problem.
Support: Extended for Kubernetes Service
Support: Implementation-specific for any other resource
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'') ? has(self.port) : true'
fraction:
description: |-
Fraction represents the fraction of requests that should be
mirrored to BackendRef.
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
properties:
denominator:
default: 100
format: int32
minimum: 1
type: integer
numerator:
format: int32
minimum: 0
type: integer
required:
- numerator
type: object
x-kubernetes-validations:
- message: numerator must be less than or equal to denominator
rule: self.numerator <= self.denominator
percent:
description: |-
Percent represents the percentage of requests that should be
mirrored to BackendRef. Its minimum value is 0 (indicating 0% of
requests) and its maximum value is 100 (indicating 100% of requests).
Only one of Fraction or Percent may be specified. If neither field
is specified, 100% of requests will be mirrored.
format: int32
maximum: 100
minimum: 0
type: integer
required:
- backendRef
type: object
x-kubernetes-validations:
- message: Only one of percent or fraction may be specified in HTTPRequestMirrorFilter
rule: '!(has(self.percent) && has(self.fraction))'
requestRedirect:
description: |-
RequestRedirect defines a schema for a filter that responds to the
request with an HTTP redirection.
Support: Core
properties:
hostname:
description: |-
Hostname is the hostname to be used in the value of the `Location`
header in the response.
When empty, the hostname in the `Host` header of the request is used.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines parameters used to modify the path of the incoming request.
The modified path is then used to construct the `Location` header. When
empty, the request path is used as-is.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
port:
description: |-
Port is the port to be used in the value of the `Location`
header in the response.
If no port is specified, the redirect port MUST be derived using the
following rules:
* If redirect scheme is not-empty, the redirect port MUST be the well-known
port associated with the redirect scheme. Specifically "http" to port 80
and "https" to port 443. If the redirect scheme does not have a
well-known port, the listener port of the Gateway SHOULD be used.
* If redirect scheme is empty, the redirect port MUST be the Gateway
Listener port.
Implementations SHOULD NOT add the port number in the 'Location'
header in the following cases:
* A Location header that will use HTTP (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 80.
* A Location header that will use HTTPS (whether that is determined via
the Listener protocol or the Scheme field) _and_ use port 443.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
scheme:
description: |-
Scheme is the scheme to be used in the value of the `Location` header in
the response. When empty, the scheme of the request is used.
Scheme redirects can affect the port of the redirect, for more information,
refer to the documentation for the port field of this filter.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Extended
enum:
- http
- https
type: string
statusCode:
default: 302
description: |-
StatusCode is the HTTP status code to be used in response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
Support: Core
enum:
- 301
- 302
type: integer
type: object
responseHeaderModifier:
description: |-
ResponseHeaderModifier defines a schema for a filter that modifies response
headers.
Support: Extended
properties:
add:
description: |-
Add adds the given header(s) (name, value) to the request
before the action. It appends to any existing values associated
with the header name.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
add:
- name: "my-header"
value: "bar,baz"
Output:
GET /foo HTTP/1.1
my-header: foo,bar,baz
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
remove:
description: |-
Remove the given header(s) from the HTTP request before the action. The
value of Remove is a list of HTTP header names. Note that the header
names are case-insensitive (see
https://datatracker.ietf.org/doc/html/rfc2616#section-4.2).
Input:
GET /foo HTTP/1.1
my-header1: foo
my-header2: bar
my-header3: baz
Config:
remove: ["my-header1", "my-header3"]
Output:
GET /foo HTTP/1.1
my-header2: bar
items:
type: string
maxItems: 16
type: array
x-kubernetes-list-type: set
set:
description: |-
Set overwrites the request with the given header (name, value)
before the action.
Input:
GET /foo HTTP/1.1
my-header: foo
Config:
set:
- name: "my-header"
value: "bar"
Output:
GET /foo HTTP/1.1
my-header: bar
items:
description: HTTPHeader represents an HTTP Header name and value as defined by RFC 7230.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, the first entry with
an equivalent name MUST be considered for a match. Subsequent entries
with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
type:
description: |-
Type identifies the type of filter to apply. As with other API fields,
types are classified into three conformance levels:
- Core: Filter types and their corresponding configuration defined by
"Support: Core" in this package, e.g. "RequestHeaderModifier". All
implementations must support core filters.
- Extended: Filter types and their corresponding configuration defined by
"Support: Extended" in this package, e.g. "RequestMirror". Implementers
are encouraged to support extended filters.
- Implementation-specific: Filters that are defined and supported by
specific vendors.
In the future, filters showing convergence in behavior across multiple
implementations will be considered for inclusion in extended or core
conformance levels. Filter-specific configuration for such filters
is specified using the ExtensionRef field. `Type` should be set to
"ExtensionRef" for custom filters.
Implementers are encouraged to define custom implementation types to
extend the core API with implementation-specific behavior.
If a reference to a custom filter type cannot be resolved, the filter
MUST NOT be skipped. Instead, requests that would have been processed by
that filter MUST receive a HTTP error response.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- RequestHeaderModifier
- ResponseHeaderModifier
- RequestMirror
- RequestRedirect
- URLRewrite
- ExtensionRef
- CORS
- ExternalAuth
type: string
urlRewrite:
description: |-
URLRewrite defines a schema for a filter that modifies a request during forwarding.
Support: Extended
properties:
hostname:
description: |-
Hostname is the value to be used to replace the Host header value during
forwarding.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
path:
description: |-
Path defines a path rewrite.
Support: Extended
properties:
replaceFullPath:
description: |-
ReplaceFullPath specifies the value with which to replace the full path
of a request during a rewrite or redirect.
maxLength: 1024
type: string
replacePrefixMatch:
description: |-
ReplacePrefixMatch specifies the value with which to replace the prefix
match of a request during a rewrite or redirect. For example, a request
to "/foo/bar" with a prefix match of "/foo" and a ReplacePrefixMatch
of "/xyz" would be modified to "/xyz/bar".
Note that this matches the behavior of the PathPrefix match type. This
matches full path elements. A path element refers to the list of labels
in the path split by the `/` separator. When specified, a trailing `/` is
ignored. For example, the paths `/abc`, `/abc/`, and `/abc/def` would all
match the prefix `/abc`, but the path `/abcd` would not.
ReplacePrefixMatch is only compatible with a `PathPrefix` HTTPRouteMatch.
Using any other HTTPRouteMatch type on the same HTTPRouteRule will result in
the implementation setting the Accepted Condition for the Route to `status: False`.
Request Path | Prefix Match | Replace Prefix | Modified Path
maxLength: 1024
type: string
type:
description: |-
Type defines the type of path modifier. Additional types may be
added in a future release of the API.
Note that values may be added to this enum, implementations
must ensure that unknown values will not cause a crash.
Unknown values here must result in the implementation setting the
Accepted Condition for the Route to `status: False`, with a
Reason of `UnsupportedValue`.
enum:
- ReplaceFullPath
- ReplacePrefixMatch
type: string
required:
- type
type: object
x-kubernetes-validations:
- message: replaceFullPath must be specified when type is set to 'ReplaceFullPath'
rule: 'self.type == ''ReplaceFullPath'' ? has(self.replaceFullPath) : true'
- message: type must be 'ReplaceFullPath' when replaceFullPath is set
rule: 'has(self.replaceFullPath) ? self.type == ''ReplaceFullPath'' : true'
- message: replacePrefixMatch must be specified when type is set to 'ReplacePrefixMatch'
rule: 'self.type == ''ReplacePrefixMatch'' ? has(self.replacePrefixMatch) : true'
- message: type must be 'ReplacePrefixMatch' when replacePrefixMatch is set
rule: 'has(self.replacePrefixMatch) ? self.type == ''ReplacePrefixMatch'' : true'
type: object
required:
- type
type: object
x-kubernetes-validations:
- message: filter.requestHeaderModifier must be nil if the filter.type is not RequestHeaderModifier
rule: '!(has(self.requestHeaderModifier) && self.type != ''RequestHeaderModifier'')'
- message: filter.requestHeaderModifier must be specified for RequestHeaderModifier filter.type
rule: '!(!has(self.requestHeaderModifier) && self.type == ''RequestHeaderModifier'')'
- message: filter.responseHeaderModifier must be nil if the filter.type is not ResponseHeaderModifier
rule: '!(has(self.responseHeaderModifier) && self.type != ''ResponseHeaderModifier'')'
- message: filter.responseHeaderModifier must be specified for ResponseHeaderModifier filter.type
rule: '!(!has(self.responseHeaderModifier) && self.type == ''ResponseHeaderModifier'')'
- message: filter.requestMirror must be nil if the filter.type is not RequestMirror
rule: '!(has(self.requestMirror) && self.type != ''RequestMirror'')'
- message: filter.requestMirror must be specified for RequestMirror filter.type
rule: '!(!has(self.requestMirror) && self.type == ''RequestMirror'')'
- message: filter.requestRedirect must be nil if the filter.type is not RequestRedirect
rule: '!(has(self.requestRedirect) && self.type != ''RequestRedirect'')'
- message: filter.requestRedirect must be specified for RequestRedirect filter.type
rule: '!(!has(self.requestRedirect) && self.type == ''RequestRedirect'')'
- message: filter.urlRewrite must be nil if the filter.type is not URLRewrite
rule: '!(has(self.urlRewrite) && self.type != ''URLRewrite'')'
- message: filter.urlRewrite must be specified for URLRewrite filter.type
rule: '!(!has(self.urlRewrite) && self.type == ''URLRewrite'')'
- message: filter.extensionRef must be nil if the filter.type is not ExtensionRef
rule: '!(has(self.extensionRef) && self.type != ''ExtensionRef'')'
- message: filter.extensionRef must be specified for ExtensionRef filter.type
rule: '!(!has(self.extensionRef) && self.type == ''ExtensionRef'')'
- message: filter.cors must be nil if the filter.type is not CORS
rule: '!(has(self.cors) && self.type != ''CORS'')'
- message: filter.cors must be specified for CORS filter.type
rule: '!(!has(self.cors) && self.type == ''CORS'')'
- message: filter.externalAuth must be nil if the filter.type is not ExternalAuth
rule: '!(has(self.externalAuth) && self.type != ''ExternalAuth'')'
- message: filter.externalAuth must be specified for ExternalAuth filter.type
rule: '!(!has(self.externalAuth) && self.type == ''ExternalAuth'')'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: May specify either httpRouteFilterRequestRedirect or httpRouteFilterRequestRewrite, but not both
rule: '!(self.exists(f, f.type == ''RequestRedirect'') && self.exists(f, f.type == ''URLRewrite''))'
- message: RequestHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'RequestHeaderModifier').size() <= 1
- message: ResponseHeaderModifier filter cannot be repeated
rule: self.filter(f, f.type == 'ResponseHeaderModifier').size() <= 1
- message: RequestRedirect filter cannot be repeated
rule: self.filter(f, f.type == 'RequestRedirect').size() <= 1
- message: URLRewrite filter cannot be repeated
rule: self.filter(f, f.type == 'URLRewrite').size() <= 1
matches:
default:
- path:
type: PathPrefix
value: /
description: |-
Matches define conditions used for matching the rule against incoming
HTTP requests. Each match is independent, i.e. this rule will be matched
if **any** one of the matches is satisfied.
For example, take the following matches configuration:
```
matches:
- path:
value: "/foo"
headers:
- name: "version"
value: "v2"
- path:
value: "/v2/foo"
```
For a request to match against this rule, a request must satisfy
EITHER of the two conditions:
- path prefixed with `/foo` AND contains the header `version: v2`
- path prefix of `/v2/foo`
See the documentation for HTTPRouteMatch on how to specify multiple
match conditions that should be ANDed together.
If no matches are specified, the default is a prefix
path match on "/", which has the effect of matching every
HTTP request.
Proxy or Load Balancer routing configuration generated from HTTPRoutes
MUST prioritize matches based on the following criteria, continuing on
ties. Across all rules specified on applicable Routes, precedence must be
given to the match having:
* "Exact" path match.
* "Prefix" path match with largest number of characters.
* Method match.
* Largest number of header matches.
* Largest number of query param matches.
Note: The precedence of RegularExpression path matches are implementation-specific.
If ties still exist across multiple Routes, matching precedence MUST be
determined in order of the following criteria, continuing on ties:
* The oldest Route based on creation timestamp.
* The Route appearing first in alphabetical order by
"{namespace}/{name}".
If ties still exist within an HTTPRoute, matching precedence MUST be granted
to the FIRST matching rule (in list order) with a match meeting the above
criteria.
When no rules matching a request have been successfully attached to the
parent a request is coming from, a HTTP 404 status code MUST be returned.
items:
description: "HTTPRouteMatch defines the predicate used to match requests to a given\naction. Multiple match types are ANDed together, i.e. the match will\nevaluate to true only if all conditions are satisfied.\n\nFor example, the match below will match a HTTP request only if its path\nstarts with `/foo` AND it contains the `version: v1` header:\n\n```\nmatch:\n\n\tpath:\n\t value: \"/foo\"\n\theaders:\n\t- name: \"version\"\n\t value \"v1\"\n\n```"
properties:
headers:
description: |-
Headers specifies HTTP request header matchers. Multiple match values are
ANDed together, meaning, a request must match all the specified headers
to select the route.
items:
description: |-
HTTPHeaderMatch describes how to select a HTTP route by matching HTTP request
headers.
properties:
name:
description: |-
Name is the name of the HTTP Header to be matched. Name matching MUST be
case-insensitive. (See https://tools.ietf.org/html/rfc7230#section-3.2).
If multiple entries specify equivalent header names, only the first
entry with an equivalent name MUST be considered for a match. Subsequent
entries with an equivalent header name MUST be ignored. Due to the
case-insensitivity of header names, "foo" and "Foo" are considered
equivalent.
When a header is repeated in an HTTP request, it is
implementation-specific behavior as to how this is represented.
Generally, proxies should follow the guidance from the RFC:
https://www.rfc-editor.org/rfc/rfc7230.html#section-3.2.2 regarding
processing a repeated header, with special handling for "Set-Cookie".
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
type:
default: Exact
description: |-
Type specifies how to match against the value of the header.
Support: Core (Exact)
Support: Implementation-specific (RegularExpression)
Since RegularExpression HeaderMatchType has implementation-specific
conformance, implementations can support POSIX, PCRE or any other dialects
of regular expressions. Please read the implementation's documentation to
determine the supported dialect.
enum:
- Exact
- RegularExpression
type: string
value:
description: Value is the value of HTTP Header to be matched.
maxLength: 4096
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
method:
description: |-
Method specifies HTTP method matcher.
When specified, this route will be matched only if the request has the
specified method.
Support: Extended
enum:
- GET
- HEAD
- POST
- PUT
- DELETE
- CONNECT
- OPTIONS
- TRACE
- PATCH
type: string
path:
default:
type: PathPrefix
value: /
description: |-
Path specifies a HTTP request path matcher. If this field is not
specified, a default prefix match on the "/" path is provided.
properties:
type:
default: PathPrefix
description: |-
Type specifies how to match against the path Value.
Support: Core (Exact, PathPrefix)
Support: Implementation-specific (RegularExpression)
enum:
- Exact
- PathPrefix
- RegularExpression
type: string
value:
default: /
description: Value of the HTTP path to match against.
maxLength: 1024
type: string
type: object
x-kubernetes-validations:
- message: value must be an absolute path and start with '/' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? self.value.startsWith(''/'') : true'
- message: must not contain '//' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''//'') : true'
- message: must not contain '/./' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''/./'') : true'
- message: must not contain '/../' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''/../'') : true'
- message: must not contain '%2f' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''%2f'') : true'
- message: must not contain '%2F' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''%2F'') : true'
- message: must not contain '#' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.contains(''#'') : true'
- message: must not end with '/..' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.endsWith(''/..'') : true'
- message: must not end with '/.' when type one of ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? !self.value.endsWith(''/.'') : true'
- message: type must be one of ['Exact', 'PathPrefix', 'RegularExpression']
rule: self.type in ['Exact','PathPrefix'] || self.type == 'RegularExpression'
- message: must only contain valid characters (matching ^(?:[-A-Za-z0-9/._~!$&'()*+,;=:@]|[%][0-9a-fA-F]{2})+$) for types ['Exact', 'PathPrefix']
rule: '(self.type in [''Exact'',''PathPrefix'']) ? self.value.matches(r"""^(?:[-A-Za-z0-9/._~!$&''()*+,;=:@]|[%][0-9a-fA-F]{2})+$""") : true'
queryParams:
description: |-
QueryParams specifies HTTP query parameter matchers. Multiple match
values are ANDed together, meaning, a request must match all the
specified query parameters to select the route.
Support: Extended
items:
description: |-
HTTPQueryParamMatch describes how to select a HTTP route by matching HTTP
query parameters.
properties:
name:
description: |-
Name is the name of the HTTP query param to be matched. This must be an
exact string match. (See
https://tools.ietf.org/html/rfc7230#section-2.7.3).
If multiple entries specify equivalent query param names, only the first
entry with an equivalent name MUST be considered for a match. Subsequent
entries with an equivalent query param name MUST be ignored.
If a query param is repeated in an HTTP request, the behavior is
purposely left undefined, since different data planes have different
capabilities. However, it is *recommended* that implementations should
match against the first value of the param if the data plane supports it,
as this behavior is expected in other load balancing contexts outside of
the Gateway API.
Users SHOULD NOT route traffic based on repeated query params to guard
themselves against potential differences in the implementations.
maxLength: 256
minLength: 1
pattern: ^[A-Za-z0-9!#$%&'*+\-.^_\x60|~]+$
type: string
type:
default: Exact
description: |-
Type specifies how to match against the value of the query parameter.
Support: Extended (Exact)
Support: Implementation-specific (RegularExpression)
Since RegularExpression QueryParamMatchType has Implementation-specific
conformance, implementations can support POSIX, PCRE or any other
dialects of regular expressions. Please read the implementation's
documentation to determine the supported dialect.
enum:
- Exact
- RegularExpression
type: string
value:
description: Value is the value of HTTP query param to be matched.
maxLength: 1024
minLength: 1
type: string
required:
- name
- value
type: object
maxItems: 16
type: array
x-kubernetes-list-map-keys:
- name
x-kubernetes-list-type: map
type: object
maxItems: 64
type: array
x-kubernetes-list-type: atomic
name:
description: |-
Name is the name of the route rule. This name MUST be unique within a Route if it is set.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
retry:
description: |-
Retry defines the configuration for when to retry an HTTP request.
Support: Extended
properties:
attempts:
description: |-
Attempts specifies the maximum number of times an individual request
from the gateway to a backend should be retried.
If the maximum number of retries has been attempted without a successful
response from the backend, the Gateway MUST return an error.
When this field is unspecified, the number of times to attempt to retry
a backend request is implementation-specific.
Support: Extended
type: integer
backoff:
description: |-
Backoff specifies the minimum duration a Gateway should wait between
retry attempts and is represented in Gateway API Duration formatting.
For example, setting the `rules[].retry.backoff` field to the value
`100ms` will cause a backend request to first be retried approximately
100 milliseconds after timing out or receiving a response code configured
to be retryable.
An implementation MAY use an exponential or alternative backoff strategy
for subsequent retry attempts, MAY cap the maximum backoff duration to
some amount greater than the specified minimum, and MAY add arbitrary
jitter to stagger requests, as long as unsuccessful backend requests are
not retried before the configured minimum duration.
If a Request timeout (`rules[].timeouts.request`) is configured on the
route, the entire duration of the initial request and any retry attempts
MUST not exceed the Request timeout duration. If any retry attempts are
still in progress when the Request timeout duration has been reached,
these SHOULD be canceled if possible and the Gateway MUST immediately
return a timeout error.
If a BackendRequest timeout (`rules[].timeouts.backendRequest`) is
configured on the route, any retry attempts which reach the configured
BackendRequest timeout duration without a response SHOULD be canceled if
possible and the Gateway should wait for at least the specified backoff
duration before attempting to retry the backend request again.
If a BackendRequest timeout is _not_ configured on the route, retry
attempts MAY time out after an implementation default duration, or MAY
remain pending until a configured Request timeout or implementation
default duration for total request time is reached.
When this field is unspecified, the time to wait between retry attempts
is implementation-specific.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
codes:
description: |-
Codes defines the HTTP response status codes for which a backend request
should be retried.
Support: Extended
items:
description: |-
HTTPRouteRetryStatusCode defines an HTTP response status code for
which a backend request should be retried.
Implementations MUST support the following status codes as retryable:
* 500
* 502
* 503
* 504
Implementations MAY support specifying additional discrete values in the
500-599 range.
Implementations MAY support specifying discrete values in the 400-499 range,
which are often inadvisable to retry.
maximum: 599
minimum: 400
type: integer
type: array
x-kubernetes-list-type: atomic
type: object
sessionPersistence:
description: |-
SessionPersistence defines and configures session persistence
for the route rule.
Support: Extended
properties:
absoluteTimeout:
description: |-
AbsoluteTimeout defines the absolute timeout of the persistent
session. Once the AbsoluteTimeout duration has elapsed, the
session becomes invalid.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
cookieConfig:
description: |-
CookieConfig provides configuration settings that are specific
to cookie-based session persistence.
Support: Core
properties:
lifetimeType:
default: Session
description: |-
LifetimeType specifies whether the cookie has a permanent or
session-based lifetime. A permanent cookie persists until its
specified expiry time, defined by the Expires or Max-Age cookie
attributes, while a session cookie is deleted when the current
session ends.
When set to "Permanent", AbsoluteTimeout indicates the
cookie's lifetime via the Expires or Max-Age cookie attributes
and is required.
When set to "Session", AbsoluteTimeout indicates the
absolute lifetime of the cookie tracked by the gateway and
is optional.
Defaults to "Session".
Support: Core for "Session" type
Support: Extended for "Permanent" type
enum:
- Permanent
- Session
type: string
type: object
idleTimeout:
description: |-
IdleTimeout defines the idle timeout of the persistent session.
Once the session has been idle for more than the specified
IdleTimeout duration, the session becomes invalid.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
sessionName:
description: |-
SessionName defines the name of the persistent session token
which may be reflected in the cookie or the header. Users
should avoid reusing session names to prevent unintended
consequences, such as rejection or unpredictable behavior.
Support: Implementation-specific
maxLength: 128
type: string
type:
default: Cookie
description: |-
Type defines the type of session persistence such as through
the use a header or cookie. Defaults to cookie based session
persistence.
Support: Core for "Cookie" type
Support: Extended for "Header" type
enum:
- Cookie
- Header
type: string
type: object
x-kubernetes-validations:
- message: AbsoluteTimeout must be specified when cookie lifetimeType is Permanent
rule: '!has(self.cookieConfig) || !has(self.cookieConfig.lifetimeType) || self.cookieConfig.lifetimeType != ''Permanent'' || has(self.absoluteTimeout)'
timeouts:
description: |-
Timeouts defines the timeouts that can be configured for an HTTP request.
Support: Extended
properties:
backendRequest:
description: |-
BackendRequest specifies a timeout for an individual request from the gateway
to a backend. This covers the time from when the request first starts being
sent from the gateway to when the full response has been received from the backend.
Setting a timeout to the zero duration (e.g. "0s") SHOULD disable the timeout
completely. Implementations that cannot completely disable the timeout MUST
instead interpret the zero duration as the longest possible value to which
the timeout can be set.
An entire client HTTP transaction with a gateway, covered by the Request timeout,
may result in more than one call from the gateway to the destination backend,
for example, if automatic retries are supported.
The value of BackendRequest must be a Gateway API Duration string as defined by
GEP-2257. When this field is unspecified, its behavior is implementation-specific;
when specified, the value of BackendRequest must be no more than the value of the
Request timeout (since the Request timeout encompasses the BackendRequest timeout).
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
request:
description: |-
Request specifies the maximum duration for a gateway to respond to an HTTP request.
If the gateway has not been able to respond before this deadline is met, the gateway
MUST return a timeout error.
For example, setting the `rules.timeouts.request` field to the value `10s` in an
`HTTPRoute` will cause a timeout if a client request is taking longer than 10 seconds
to complete.
Setting a timeout to the zero duration (e.g. "0s") SHOULD disable the timeout
completely. Implementations that cannot completely disable the timeout MUST
instead interpret the zero duration as the longest possible value to which
the timeout can be set.
This timeout is intended to cover as close to the whole request-response transaction
as possible although an implementation MAY choose to start the timeout after the entire
request stream has been received instead of immediately after the transaction is
initiated by the client.
The value of Request is a Gateway API Duration string as defined by GEP-2257. When this
field is unspecified, request timeout behavior is implementation-specific.
Support: Extended
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type: string
type: object
x-kubernetes-validations:
- message: backendRequest timeout cannot be longer than request timeout
rule: '!(has(self.request) && has(self.backendRequest) && duration(self.request) != duration(''0s'') && duration(self.backendRequest) > duration(self.request))'
type: object
x-kubernetes-validations:
- message: RequestRedirect filter must not be used together with backendRefs
rule: '(has(self.backendRefs) && size(self.backendRefs) > 0) ? (!has(self.filters) || self.filters.all(f, !has(f.requestRedirect))): true'
- message: When using RequestRedirect filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.filters) && self.filters.exists_one(f, has(f.requestRedirect) && has(f.requestRedirect.path) && f.requestRedirect.path.type == ''ReplacePrefixMatch'' && has(f.requestRedirect.path.replacePrefixMatch))) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
- message: When using URLRewrite filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.filters) && self.filters.exists_one(f, has(f.urlRewrite) && has(f.urlRewrite.path) && f.urlRewrite.path.type == ''ReplacePrefixMatch'' && has(f.urlRewrite.path.replacePrefixMatch))) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
- message: Within backendRefs, when using RequestRedirect filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.backendRefs) && self.backendRefs.exists_one(b, (has(b.filters) && b.filters.exists_one(f, has(f.requestRedirect) && has(f.requestRedirect.path) && f.requestRedirect.path.type == ''ReplacePrefixMatch'' && has(f.requestRedirect.path.replacePrefixMatch))) )) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
- message: Within backendRefs, When using URLRewrite filter with path.replacePrefixMatch, exactly one PathPrefix match must be specified
rule: '(has(self.backendRefs) && self.backendRefs.exists_one(b, (has(b.filters) && b.filters.exists_one(f, has(f.urlRewrite) && has(f.urlRewrite.path) && f.urlRewrite.path.type == ''ReplacePrefixMatch'' && has(f.urlRewrite.path.replacePrefixMatch))) )) ? ((size(self.matches) != 1 || !has(self.matches[0].path) || self.matches[0].path.type != ''PathPrefix'') ? false : true) : true'
maxItems: 16
type: array
x-kubernetes-list-type: atomic
x-kubernetes-validations:
- message: While 16 rules and 64 matches per rule are allowed, the total number of matches across all rules in a route must be less than 128
rule: '(self.size() > 0 ? self[0].matches.size() : 0) + (self.size() > 1 ? self[1].matches.size() : 0) + (self.size() > 2 ? self[2].matches.size() : 0) + (self.size() > 3 ? self[3].matches.size() : 0) + (self.size() > 4 ? self[4].matches.size() : 0) + (self.size() > 5 ? self[5].matches.size() : 0) + (self.size() > 6 ? self[6].matches.size() : 0) + (self.size() > 7 ? self[7].matches.size() : 0) + (self.size() > 8 ? self[8].matches.size() : 0) + (self.size() > 9 ? self[9].matches.size() : 0) + (self.size() > 10 ? self[10].matches.size() : 0) + (self.size() > 11 ? self[11].matches.size() : 0) + (self.size() > 12 ? self[12].matches.size() : 0) + (self.size() > 13 ? self[13].matches.size() : 0) + (self.size() > 14 ? self[14].matches.size() : 0) + (self.size() > 15 ? self[15].matches.size() : 0) <= 128'
- message: Rule name must be unique within the route
rule: self.all(l1, !has(l1.name) || self.exists_one(l2, has(l2.name) && l1.name == l2.name))
useDefaultGateways:
description: |-
UseDefaultGateways indicates the default Gateway scope to use for this
Route. If unset (the default) or set to None, the Route will not be
attached to any default Gateway; if set, it will be attached to any
default Gateway supporting the named scope, subject to the usual rules
about which Routes a Gateway is allowed to claim.
Think carefully before using this functionality! The set of default
Gateways supporting the requested scope can change over time without
any notice to the Route author, and in many situations it will not be
appropriate to request a default Gateway for a given Route -- for
example, a Route with specific security requirements should almost
certainly not use a default Gateway.
enum:
- All
- None
type: string
type: object
status:
description: Status defines the current state of HTTPRoute.
properties:
parents:
description: |-
Parents is a list of parent resources (usually Gateways) that are
associated with the route, and the status of the route with respect to
each parent. When this route attaches to a parent, the controller that
manages the parent must add an entry to this list when the controller
first sees the route and should update the entry as appropriate when the
route or gateway is modified.
Note that parent references that cannot be resolved by an implementation
of this API will not be added to this list. Implementations of this API
can only populate Route status for the Gateways/parent resources they are
responsible for.
A maximum of 32 Gateways will be represented in this list. An empty list
means the route has not been attached to any Gateway.
items:
description: |-
RouteParentStatus describes the status of a route with respect to an
associated Parent.
properties:
conditions:
description: |-
Conditions describes the status of the route with respect to the Gateway.
Note that the route's availability is also subject to the Gateway's own
status conditions and listener status.
If the Route's ParentRef specifies an existing Gateway that supports
Routes of this kind AND that Gateway's controller has sufficient access,
then that Gateway's controller MUST set the "Accepted" condition on the
Route, to indicate whether the route has been accepted or rejected by the
Gateway, and why.
A Route MUST be considered "Accepted" if at least one of the Route's
rules is implemented by the Gateway.
There are a number of cases where the "Accepted" condition may not be set
due to lack of controller visibility, that includes when:
* The Route refers to a nonexistent parent.
* The Route is of a type that the controller does not support.
* The Route is in a namespace the controller does not have access to.
items:
description: Condition contains details for one aspect of the current state of this API Resource.
properties:
lastTransitionTime:
description: |-
lastTransitionTime is the last time the condition transitioned from one status to another.
This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.
format: date-time
type: string
message:
description: |-
message is a human readable message indicating details about the transition.
This may be an empty string.
maxLength: 32768
type: string
observedGeneration:
description: |-
observedGeneration represents the .metadata.generation that the condition was set based upon.
For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
with respect to the current state of the instance.
format: int64
minimum: 0
type: integer
reason:
description: |-
reason contains a programmatic identifier indicating the reason for the condition's last transition.
Producers of specific condition types may define expected values and meanings for this field,
and whether the values are considered a guaranteed API.
The value should be a CamelCase string.
This field may not be empty.
maxLength: 1024
minLength: 1
pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
type: string
status:
description: status of the condition, one of True, False, Unknown.
enum:
- "True"
- "False"
- Unknown
type: string
type:
description: type of condition in CamelCase or in foo.example.com/CamelCase.
maxLength: 316
pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
type: string
required:
- lastTransitionTime
- message
- reason
- status
- type
type: object
maxItems: 8
minItems: 1
type: array
x-kubernetes-list-map-keys:
- type
x-kubernetes-list-type: map
controllerName:
description: |-
ControllerName is a domain/path string that indicates the name of the
controller that wrote this status. This corresponds with the
controllerName field on GatewayClass.
Example: "example.net/gateway-controller".
The format of this field is DOMAIN "/" PATH, where DOMAIN and PATH are
valid Kubernetes names
(https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names).
Controllers MUST populate this field when writing status. Controllers should ensure that
entries to status populated with their ControllerName are cleaned up when they are no
longer necessary.
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
type: string
parentRef:
description: |-
ParentRef corresponds with a ParentRef in the spec that this
RouteParentStatus struct describes the status of.
properties:
group:
default: gateway.networking.k8s.io
description: |-
Group is the group of the referent.
When unspecified, "gateway.networking.k8s.io" is inferred.
To set the core API group (such as for a "Service" kind referent),
Group must be explicitly set to "" (empty string).
Support: Core
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Gateway
description: |-
Kind is kind of the referent.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
Support for other resources is Implementation-Specific.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: |-
Name is the name of the referent.
Support: Core
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the referent. When unspecified, this refers
to the local namespace of the Route.
Note that there are specific rules for ParentRefs which cross namespace
boundaries. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example:
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable any other kind of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port is the network port this Route targets. It can be interpreted
differently based on the type of parent resource.
When the parent resource is a Gateway, this targets all listeners
listening on the specified port that also support this kind of Route(and
select this Route). It's not recommended to set `Port` unless the
networking behaviors specified in a Route must apply to a specific port
as opposed to a listener(s) whose port(s) may be changed. When both Port
and SectionName are specified, the name and port of the selected listener
must match both specified values.
When the parent resource is a Service, this targets a specific port in the
Service spec. When both Port (experimental) and SectionName are specified,
the name and port of the selected port must match both specified values.
Implementations MAY choose to support other parent resources.
Implementations supporting other types of parent resources MUST clearly
document how/if Port is interpreted.
For the purpose of status, an attachment is considered successful as
long as the parent resource accepts it partially. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment
from the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route,
the Route MUST be considered detached from the Gateway.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
sectionName:
description: |-
SectionName is the name of a section within the target resource. In the
following resources, SectionName is interpreted as the following:
* Gateway: Listener name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
* Service: Port name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
Implementations MAY choose to support attaching Routes to other resources.
If that is the case, they MUST clearly document how SectionName is
interpreted.
When unspecified (empty string), this will reference the entire resource.
For the purpose of status, an attachment is considered successful if at
least one section in the parent resource accepts it. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from
the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route, the
Route MUST be considered detached from the Gateway.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
required:
- conditions
- controllerName
- parentRef
type: object
maxItems: 32
type: array
x-kubernetes-list-type: atomic
required:
- parents
type: object
required:
- spec
type: object
served: true
storage: false
subresources:
status: {}
status:
acceptedNames:
kind: ""
plural: ""
conditions: null
storedVersions: null