105 lines
4.2 KiB
Go
105 lines
4.2 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package customresource
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"k8s.io/apimachinery/pkg/api/errors"
|
|
metainternalversion "k8s.io/apimachinery/pkg/apis/meta/internalversion"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
"k8s.io/apimachinery/pkg/watch"
|
|
"k8s.io/apiserver/pkg/registry/rest"
|
|
)
|
|
|
|
// Registry is an interface for things that know how to store CustomResources.
|
|
type Registry interface {
|
|
ListCustomResources(ctx context.Context, options *metainternalversion.ListOptions) (*unstructured.UnstructuredList, error)
|
|
WatchCustomResources(ctx context.Context, options *metainternalversion.ListOptions) (watch.Interface, error)
|
|
GetCustomResource(ctx context.Context, customResourceID string, options *metav1.GetOptions) (*unstructured.Unstructured, error)
|
|
CreateCustomResource(ctx context.Context, customResource *unstructured.Unstructured, createValidation rest.ValidateObjectFunc) (*unstructured.Unstructured, error)
|
|
UpdateCustomResource(ctx context.Context, customResource *unstructured.Unstructured, createValidation rest.ValidateObjectFunc, updateValidation rest.ValidateObjectUpdateFunc) (*unstructured.Unstructured, error)
|
|
DeleteCustomResource(ctx context.Context, customResourceID string) error
|
|
}
|
|
|
|
// storage puts strong typing around storage calls
|
|
type storage struct {
|
|
rest.StandardStorage
|
|
}
|
|
|
|
// NewRegistry returns a new Registry interface for the given Storage. Any mismatched
|
|
// types will panic.
|
|
func NewRegistry(s rest.StandardStorage) Registry {
|
|
return &storage{s}
|
|
}
|
|
|
|
func (s *storage) ListCustomResources(ctx context.Context, options *metainternalversion.ListOptions) (*unstructured.UnstructuredList, error) {
|
|
if options != nil && options.FieldSelector != nil && !options.FieldSelector.Empty() {
|
|
return nil, fmt.Errorf("field selector not supported yet")
|
|
}
|
|
obj, err := s.List(ctx, options)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return obj.(*unstructured.UnstructuredList), err
|
|
}
|
|
|
|
func (s *storage) WatchCustomResources(ctx context.Context, options *metainternalversion.ListOptions) (watch.Interface, error) {
|
|
return s.Watch(ctx, options)
|
|
}
|
|
|
|
func (s *storage) GetCustomResource(ctx context.Context, customResourceID string, options *metav1.GetOptions) (*unstructured.Unstructured, error) {
|
|
obj, err := s.Get(ctx, customResourceID, options)
|
|
customResource, ok := obj.(*unstructured.Unstructured)
|
|
if !ok {
|
|
return nil, fmt.Errorf("custom resource must be of type Unstructured")
|
|
}
|
|
|
|
if err != nil {
|
|
apiVersion := customResource.GetAPIVersion()
|
|
groupVersion := strings.Split(apiVersion, "/")
|
|
group := groupVersion[0]
|
|
return nil, errors.NewNotFound(schema.GroupResource{Group: group, Resource: "scale"}, customResourceID)
|
|
}
|
|
return customResource, nil
|
|
}
|
|
|
|
func (s *storage) CreateCustomResource(ctx context.Context, customResource *unstructured.Unstructured, createValidation rest.ValidateObjectFunc) (*unstructured.Unstructured, error) {
|
|
obj, err := s.Create(ctx, customResource, rest.ValidateAllObjectFunc, false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return obj.(*unstructured.Unstructured), nil
|
|
}
|
|
|
|
func (s *storage) UpdateCustomResource(ctx context.Context, customResource *unstructured.Unstructured, createValidation rest.ValidateObjectFunc, updateValidation rest.ValidateObjectUpdateFunc) (*unstructured.Unstructured, error) {
|
|
obj, _, err := s.Update(ctx, customResource.GetName(), rest.DefaultUpdatedObjectInfo(customResource), createValidation, updateValidation, false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return obj.(*unstructured.Unstructured), nil
|
|
}
|
|
|
|
func (s *storage) DeleteCustomResource(ctx context.Context, customResourceID string) error {
|
|
_, _, err := s.Delete(ctx, customResourceID, nil)
|
|
return err
|
|
}
|