Bumping k8s dependencies to 1.13

vendor/k8s.io/kubernetes/cmd/kubeadm/app/componentconfigs/registrations.go

@@ -0,0 +1,161 @@
+/*
+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 componentconfigs
+
+import (
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+	clientset "k8s.io/client-go/kubernetes"
+	kubeproxyconfigv1alpha1 "k8s.io/kube-proxy/config/v1alpha1"
+	kubeletconfigv1beta1 "k8s.io/kubelet/config/v1beta1"
+	kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
+	kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
+	kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
+	kubeproxyconfig "k8s.io/kubernetes/pkg/proxy/apis/config"
+	"k8s.io/kubernetes/pkg/util/version"
+)
+
+// AddToSchemeFunc is a function that adds known types and API GroupVersions to a scheme
+type AddToSchemeFunc func(*runtime.Scheme) error
+
+// Registration is an object for registering a Kubernetes ComponentConfig type to be recognized and handled by kubeadm
+type Registration struct {
+	// MarshalGroupVersion is the preferred external API version to use when marshalling the ComponentConfig
+	MarshalGroupVersion schema.GroupVersion
+	// AddToSchemeFuncs are a set of functions that register APIs to the scheme
+	AddToSchemeFuncs []AddToSchemeFunc
+	// DefaulterFunc is a function that based on the internal kubeadm configuration defaults the ComponentConfig struct
+	DefaulterFunc func(*kubeadmapi.ClusterConfiguration)
+	// ValidateFunc is a function that should validate the ComponentConfig type embedded in the internal kubeadm config struct
+	ValidateFunc func(*kubeadmapi.ClusterConfiguration, *field.Path) field.ErrorList
+	// EmptyValue holds a pointer to an empty struct of the internal ComponentConfig type
+	EmptyValue runtime.Object
+	// GetFromInternalConfig returns the pointer to the ComponentConfig API object from the internal kubeadm config struct
+	GetFromInternalConfig func(*kubeadmapi.ClusterConfiguration) (runtime.Object, bool)
+	// SetToInternalConfig sets the pointer to a ComponentConfig API object embedded in the internal kubeadm config struct
+	SetToInternalConfig func(runtime.Object, *kubeadmapi.ClusterConfiguration) bool
+	// GetFromConfigMap returns the pointer to the ComponentConfig API object read from the config map stored in the cluster
+	GetFromConfigMap func(clientset.Interface, *version.Version) (runtime.Object, error)
+}
+
+// Marshal marshals obj to bytes for the current Registration
+func (r Registration) Marshal(obj runtime.Object) ([]byte, error) {
+	return kubeadmutil.MarshalToYamlForCodecs(obj, r.MarshalGroupVersion, Codecs)
+}
+
+// Unmarshal unmarshals the bytes to a runtime.Object using the Codecs registered in this Scheme
+func (r Registration) Unmarshal(fileContent []byte) (runtime.Object, error) {
+	// Do a deepcopy of the empty value so we don't mutate it, which could lead to strange errors
+	obj := r.EmptyValue.DeepCopyObject()
+
+	// Decode the file content into obj which is a pointer to an empty struct of the internal ComponentConfig
+	if err := unmarshalObject(obj, fileContent); err != nil {
+		return nil, err
+	}
+	return obj, nil
+}
+
+func unmarshalObject(obj runtime.Object, fileContent []byte) error {
+	// Decode the file content  using the componentconfig Codecs that knows about all APIs
+	if err := runtime.DecodeInto(Codecs.UniversalDecoder(), fileContent, obj); err != nil {
+		return err
+	}
+	return nil
+}
+
+const (
+	// KubeletConfigurationKind is the kind for the kubelet ComponentConfig
+	KubeletConfigurationKind RegistrationKind = "KubeletConfiguration"
+	// KubeProxyConfigurationKind is the kind for the kubelet ComponentConfig
+	KubeProxyConfigurationKind RegistrationKind = "KubeProxyConfiguration"
+)
+
+// RegistrationKind is a string type to ensure not any string can be a key in the Registrations map
+type RegistrationKind string
+
+// Registrations holds a set of ComponentConfig Registration objects, where the map key is the kind
+type Registrations map[RegistrationKind]Registration
+
+// Known contains the known ComponentConfig registrations to kubeadm
+var Known Registrations = map[RegistrationKind]Registration{
+	KubeProxyConfigurationKind: {
+		// TODO: When a beta version of the kube-proxy ComponentConfig API is available, start using it
+		MarshalGroupVersion: kubeproxyconfigv1alpha1.SchemeGroupVersion,
+		AddToSchemeFuncs:    []AddToSchemeFunc{kubeproxyconfig.AddToScheme, kubeproxyconfigv1alpha1.AddToScheme},
+		DefaulterFunc:       DefaultKubeProxyConfiguration,
+		ValidateFunc:        ValidateKubeProxyConfiguration,
+		EmptyValue:          &kubeproxyconfig.KubeProxyConfiguration{},
+		GetFromInternalConfig: func(cfg *kubeadmapi.ClusterConfiguration) (runtime.Object, bool) {
+			return cfg.ComponentConfigs.KubeProxy, cfg.ComponentConfigs.KubeProxy != nil
+		},
+		SetToInternalConfig: func(obj runtime.Object, cfg *kubeadmapi.ClusterConfiguration) bool {
+			kubeproxyConfig, ok := obj.(*kubeproxyconfig.KubeProxyConfiguration)
+			if ok {
+				cfg.ComponentConfigs.KubeProxy = kubeproxyConfig
+			}
+			return ok
+		},
+		GetFromConfigMap: GetFromKubeProxyConfigMap,
+	},
+	KubeletConfigurationKind: {
+		MarshalGroupVersion: kubeletconfigv1beta1.SchemeGroupVersion,
+		AddToSchemeFuncs:    []AddToSchemeFunc{kubeletconfig.AddToScheme, kubeletconfigv1beta1.AddToScheme},
+		DefaulterFunc:       DefaultKubeletConfiguration,
+		ValidateFunc:        ValidateKubeletConfiguration,
+		EmptyValue:          &kubeletconfig.KubeletConfiguration{},
+		GetFromInternalConfig: func(cfg *kubeadmapi.ClusterConfiguration) (runtime.Object, bool) {
+			return cfg.ComponentConfigs.Kubelet, cfg.ComponentConfigs.Kubelet != nil
+		},
+		SetToInternalConfig: func(obj runtime.Object, cfg *kubeadmapi.ClusterConfiguration) bool {
+			kubeletConfig, ok := obj.(*kubeletconfig.KubeletConfiguration)
+			if ok {
+				cfg.ComponentConfigs.Kubelet = kubeletConfig
+			}
+			return ok
+		},
+		GetFromConfigMap: GetFromKubeletConfigMap,
+	},
+}
+
+// AddToScheme adds all the known ComponentConfig API types referenced in the Registrations object to the scheme
+func (rs *Registrations) AddToScheme(scheme *runtime.Scheme) error {
+	for _, registration := range *rs {
+		for _, addToSchemeFunc := range registration.AddToSchemeFuncs {
+			if err := addToSchemeFunc(scheme); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// Default applies to the ComponentConfig defaults to the internal kubeadm API type
+func (rs *Registrations) Default(internalcfg *kubeadmapi.ClusterConfiguration) {
+	for _, registration := range *rs {
+		registration.DefaulterFunc(internalcfg)
+	}
+}
+
+// Validate validates the ComponentConfig parts of the internal kubeadm API type
+func (rs *Registrations) Validate(internalcfg *kubeadmapi.ClusterConfiguration) field.ErrorList {
+	allErrs := field.ErrorList{}
+	for kind, registration := range *rs {
+		allErrs = append(allErrs, registration.ValidateFunc(internalcfg, field.NewPath(string(kind)))...)
+	}
+	return allErrs
+}