git subrepo clone (merge) https://github.com/kubernetes-incubator/metrics-server.git metrics-server
subrepo:
subdir: "metrics-server"
merged: "92d8412"
upstream:
origin: "https://github.com/kubernetes-incubator/metrics-server.git"
branch: "master"
commit: "92d8412"
git-subrepo:
version: "0.4.0"
origin: "???"
commit: "???"
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/doc.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/doc.go
new file mode 100644
index 0000000..0a08187
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/doc.go
@@ -0,0 +1,18 @@
+/*
+Copyright 2015 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.
+*/
+
+// +k8s:deepcopy-gen=package
+package api
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/helpers.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/helpers.go
new file mode 100644
index 0000000..43e2648
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/helpers.go
@@ -0,0 +1,183 @@
+/*
+Copyright 2015 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 api
+
+import (
+ "encoding/base64"
+ "errors"
+ "fmt"
+ "io/ioutil"
+ "os"
+ "path"
+ "path/filepath"
+)
+
+func init() {
+ sDec, _ := base64.StdEncoding.DecodeString("REDACTED+")
+ redactedBytes = []byte(string(sDec))
+}
+
+// IsConfigEmpty returns true if the config is empty.
+func IsConfigEmpty(config *Config) bool {
+ return len(config.AuthInfos) == 0 && len(config.Clusters) == 0 && len(config.Contexts) == 0 &&
+ len(config.CurrentContext) == 0 &&
+ len(config.Preferences.Extensions) == 0 && !config.Preferences.Colors &&
+ len(config.Extensions) == 0
+}
+
+// MinifyConfig read the current context and uses that to keep only the relevant pieces of config
+// This is useful for making secrets based on kubeconfig files
+func MinifyConfig(config *Config) error {
+ if len(config.CurrentContext) == 0 {
+ return errors.New("current-context must exist in order to minify")
+ }
+
+ currContext, exists := config.Contexts[config.CurrentContext]
+ if !exists {
+ return fmt.Errorf("cannot locate context %v", config.CurrentContext)
+ }
+
+ newContexts := map[string]*Context{}
+ newContexts[config.CurrentContext] = currContext
+
+ newClusters := map[string]*Cluster{}
+ if len(currContext.Cluster) > 0 {
+ if _, exists := config.Clusters[currContext.Cluster]; !exists {
+ return fmt.Errorf("cannot locate cluster %v", currContext.Cluster)
+ }
+
+ newClusters[currContext.Cluster] = config.Clusters[currContext.Cluster]
+ }
+
+ newAuthInfos := map[string]*AuthInfo{}
+ if len(currContext.AuthInfo) > 0 {
+ if _, exists := config.AuthInfos[currContext.AuthInfo]; !exists {
+ return fmt.Errorf("cannot locate user %v", currContext.AuthInfo)
+ }
+
+ newAuthInfos[currContext.AuthInfo] = config.AuthInfos[currContext.AuthInfo]
+ }
+
+ config.AuthInfos = newAuthInfos
+ config.Clusters = newClusters
+ config.Contexts = newContexts
+
+ return nil
+}
+
+var redactedBytes []byte
+
+// Flatten redacts raw data entries from the config object for a human-readable view.
+func ShortenConfig(config *Config) {
+ // trick json encoder into printing a human readable string in the raw data
+ // by base64 decoding what we want to print. Relies on implementation of
+ // http://golang.org/pkg/encoding/json/#Marshal using base64 to encode []byte
+ for key, authInfo := range config.AuthInfos {
+ if len(authInfo.ClientKeyData) > 0 {
+ authInfo.ClientKeyData = redactedBytes
+ }
+ if len(authInfo.ClientCertificateData) > 0 {
+ authInfo.ClientCertificateData = redactedBytes
+ }
+ config.AuthInfos[key] = authInfo
+ }
+ for key, cluster := range config.Clusters {
+ if len(cluster.CertificateAuthorityData) > 0 {
+ cluster.CertificateAuthorityData = redactedBytes
+ }
+ config.Clusters[key] = cluster
+ }
+}
+
+// Flatten changes the config object into a self contained config (useful for making secrets)
+func FlattenConfig(config *Config) error {
+ for key, authInfo := range config.AuthInfos {
+ baseDir, err := MakeAbs(path.Dir(authInfo.LocationOfOrigin), "")
+ if err != nil {
+ return err
+ }
+
+ if err := FlattenContent(&authInfo.ClientCertificate, &authInfo.ClientCertificateData, baseDir); err != nil {
+ return err
+ }
+ if err := FlattenContent(&authInfo.ClientKey, &authInfo.ClientKeyData, baseDir); err != nil {
+ return err
+ }
+
+ config.AuthInfos[key] = authInfo
+ }
+ for key, cluster := range config.Clusters {
+ baseDir, err := MakeAbs(path.Dir(cluster.LocationOfOrigin), "")
+ if err != nil {
+ return err
+ }
+
+ if err := FlattenContent(&cluster.CertificateAuthority, &cluster.CertificateAuthorityData, baseDir); err != nil {
+ return err
+ }
+
+ config.Clusters[key] = cluster
+ }
+
+ return nil
+}
+
+func FlattenContent(path *string, contents *[]byte, baseDir string) error {
+ if len(*path) != 0 {
+ if len(*contents) > 0 {
+ return errors.New("cannot have values for both path and contents")
+ }
+
+ var err error
+ absPath := ResolvePath(*path, baseDir)
+ *contents, err = ioutil.ReadFile(absPath)
+ if err != nil {
+ return err
+ }
+
+ *path = ""
+ }
+
+ return nil
+}
+
+// ResolvePath returns the path as an absolute paths, relative to the given base directory
+func ResolvePath(path string, base string) string {
+ // Don't resolve empty paths
+ if len(path) > 0 {
+ // Don't resolve absolute paths
+ if !filepath.IsAbs(path) {
+ return filepath.Join(base, path)
+ }
+ }
+
+ return path
+}
+
+func MakeAbs(path, base string) (string, error) {
+ if filepath.IsAbs(path) {
+ return path, nil
+ }
+ if len(base) == 0 {
+ cwd, err := os.Getwd()
+ if err != nil {
+ return "", err
+ }
+ base = cwd
+ }
+ return filepath.Join(base, path), nil
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/latest/latest.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/latest/latest.go
new file mode 100644
index 0000000..5fbbe3f
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/latest/latest.go
@@ -0,0 +1,66 @@
+/*
+Copyright 2014 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 latest
+
+import (
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ "k8s.io/apimachinery/pkg/runtime/serializer/json"
+ "k8s.io/apimachinery/pkg/runtime/serializer/versioning"
+ "k8s.io/client-go/tools/clientcmd/api"
+ "k8s.io/client-go/tools/clientcmd/api/v1"
+)
+
+// Version is the string that represents the current external default version.
+const Version = "v1"
+
+var ExternalVersion = schema.GroupVersion{Group: "", Version: "v1"}
+
+// OldestVersion is the string that represents the oldest server version supported,
+// for client code that wants to hardcode the lowest common denominator.
+const OldestVersion = "v1"
+
+// Versions is the list of versions that are recognized in code. The order provided
+// may be assumed to be least feature rich to most feature rich, and clients may
+// choose to prefer the latter items in the list over the former items when presented
+// with a set of versions to choose.
+var Versions = []string{"v1"}
+
+var (
+ Codec runtime.Codec
+ Scheme *runtime.Scheme
+)
+
+func init() {
+ Scheme = runtime.NewScheme()
+ if err := api.AddToScheme(Scheme); err != nil {
+ // Programmer error, detect immediately
+ panic(err)
+ }
+ if err := v1.AddToScheme(Scheme); err != nil {
+ // Programmer error, detect immediately
+ panic(err)
+ }
+ yamlSerializer := json.NewYAMLSerializer(json.DefaultMetaFactory, Scheme, Scheme)
+ Codec = versioning.NewDefaultingCodecForScheme(
+ Scheme,
+ yamlSerializer,
+ yamlSerializer,
+ schema.GroupVersion{Version: Version},
+ runtime.InternalGroupVersioner,
+ )
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/register.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/register.go
new file mode 100644
index 0000000..2eec388
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/register.go
@@ -0,0 +1,46 @@
+/*
+Copyright 2014 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 api
+
+import (
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// SchemeGroupVersion is group version used to register these objects
+// TODO this should be in the "kubeconfig" group
+var SchemeGroupVersion = schema.GroupVersion{Group: "", Version: runtime.APIVersionInternal}
+
+var (
+ SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
+ AddToScheme = SchemeBuilder.AddToScheme
+)
+
+func addKnownTypes(scheme *runtime.Scheme) error {
+ scheme.AddKnownTypes(SchemeGroupVersion,
+ &Config{},
+ )
+ return nil
+}
+
+func (obj *Config) GetObjectKind() schema.ObjectKind { return obj }
+func (obj *Config) SetGroupVersionKind(gvk schema.GroupVersionKind) {
+ obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
+}
+func (obj *Config) GroupVersionKind() schema.GroupVersionKind {
+ return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/types.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/types.go
new file mode 100644
index 0000000..1391df7
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/types.go
@@ -0,0 +1,218 @@
+/*
+Copyright 2014 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 api
+
+import (
+ "k8s.io/apimachinery/pkg/runtime"
+)
+
+// Where possible, json tags match the cli argument names.
+// Top level config objects and all values required for proper functioning are not "omitempty". Any truly optional piece of config is allowed to be omitted.
+
+// Config holds the information needed to build connect to remote kubernetes clusters as a given user
+// IMPORTANT if you add fields to this struct, please update IsConfigEmpty()
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+type Config struct {
+ // Legacy field from pkg/api/types.go TypeMeta.
+ // TODO(jlowdermilk): remove this after eliminating downstream dependencies.
+ // +optional
+ Kind string `json:"kind,omitempty"`
+ // Legacy field from pkg/api/types.go TypeMeta.
+ // TODO(jlowdermilk): remove this after eliminating downstream dependencies.
+ // +optional
+ APIVersion string `json:"apiVersion,omitempty"`
+ // Preferences holds general information to be use for cli interactions
+ Preferences Preferences `json:"preferences"`
+ // Clusters is a map of referencable names to cluster configs
+ Clusters map[string]*Cluster `json:"clusters"`
+ // AuthInfos is a map of referencable names to user configs
+ AuthInfos map[string]*AuthInfo `json:"users"`
+ // Contexts is a map of referencable names to context configs
+ Contexts map[string]*Context `json:"contexts"`
+ // CurrentContext is the name of the context that you would like to use by default
+ CurrentContext string `json:"current-context"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions map[string]runtime.Object `json:"extensions,omitempty"`
+}
+
+// IMPORTANT if you add fields to this struct, please update IsConfigEmpty()
+type Preferences struct {
+ // +optional
+ Colors bool `json:"colors,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions map[string]runtime.Object `json:"extensions,omitempty"`
+}
+
+// Cluster contains information about how to communicate with a kubernetes cluster
+type Cluster struct {
+ // LocationOfOrigin indicates where this object came from. It is used for round tripping config post-merge, but never serialized.
+ LocationOfOrigin string
+ // Server is the address of the kubernetes cluster (https://hostname:port).
+ Server string `json:"server"`
+ // InsecureSkipTLSVerify skips the validity check for the server's certificate. This will make your HTTPS connections insecure.
+ // +optional
+ InsecureSkipTLSVerify bool `json:"insecure-skip-tls-verify,omitempty"`
+ // CertificateAuthority is the path to a cert file for the certificate authority.
+ // +optional
+ CertificateAuthority string `json:"certificate-authority,omitempty"`
+ // CertificateAuthorityData contains PEM-encoded certificate authority certificates. Overrides CertificateAuthority
+ // +optional
+ CertificateAuthorityData []byte `json:"certificate-authority-data,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions map[string]runtime.Object `json:"extensions,omitempty"`
+}
+
+// AuthInfo contains information that describes identity information. This is use to tell the kubernetes cluster who you are.
+type AuthInfo struct {
+ // LocationOfOrigin indicates where this object came from. It is used for round tripping config post-merge, but never serialized.
+ LocationOfOrigin string
+ // ClientCertificate is the path to a client cert file for TLS.
+ // +optional
+ ClientCertificate string `json:"client-certificate,omitempty"`
+ // ClientCertificateData contains PEM-encoded data from a client cert file for TLS. Overrides ClientCertificate
+ // +optional
+ ClientCertificateData []byte `json:"client-certificate-data,omitempty"`
+ // ClientKey is the path to a client key file for TLS.
+ // +optional
+ ClientKey string `json:"client-key,omitempty"`
+ // ClientKeyData contains PEM-encoded data from a client key file for TLS. Overrides ClientKey
+ // +optional
+ ClientKeyData []byte `json:"client-key-data,omitempty"`
+ // Token is the bearer token for authentication to the kubernetes cluster.
+ // +optional
+ Token string `json:"token,omitempty"`
+ // TokenFile is a pointer to a file that contains a bearer token (as described above). If both Token and TokenFile are present, Token takes precedence.
+ // +optional
+ TokenFile string `json:"tokenFile,omitempty"`
+ // Impersonate is the username to act-as.
+ // +optional
+ Impersonate string `json:"act-as,omitempty"`
+ // ImpersonateGroups is the groups to imperonate.
+ // +optional
+ ImpersonateGroups []string `json:"act-as-groups,omitempty"`
+ // ImpersonateUserExtra contains additional information for impersonated user.
+ // +optional
+ ImpersonateUserExtra map[string][]string `json:"act-as-user-extra,omitempty"`
+ // Username is the username for basic authentication to the kubernetes cluster.
+ // +optional
+ Username string `json:"username,omitempty"`
+ // Password is the password for basic authentication to the kubernetes cluster.
+ // +optional
+ Password string `json:"password,omitempty"`
+ // AuthProvider specifies a custom authentication plugin for the kubernetes cluster.
+ // +optional
+ AuthProvider *AuthProviderConfig `json:"auth-provider,omitempty"`
+ // Exec specifies a custom exec-based authentication plugin for the kubernetes cluster.
+ // +optional
+ Exec *ExecConfig `json:"exec,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions map[string]runtime.Object `json:"extensions,omitempty"`
+}
+
+// Context is a tuple of references to a cluster (how do I communicate with a kubernetes cluster), a user (how do I identify myself), and a namespace (what subset of resources do I want to work with)
+type Context struct {
+ // LocationOfOrigin indicates where this object came from. It is used for round tripping config post-merge, but never serialized.
+ LocationOfOrigin string
+ // Cluster is the name of the cluster for this context
+ Cluster string `json:"cluster"`
+ // AuthInfo is the name of the authInfo for this context
+ AuthInfo string `json:"user"`
+ // Namespace is the default namespace to use on unspecified requests
+ // +optional
+ Namespace string `json:"namespace,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions map[string]runtime.Object `json:"extensions,omitempty"`
+}
+
+// AuthProviderConfig holds the configuration for a specified auth provider.
+type AuthProviderConfig struct {
+ Name string `json:"name"`
+ // +optional
+ Config map[string]string `json:"config,omitempty"`
+}
+
+// ExecConfig specifies a command to provide client credentials. The command is exec'd
+// and outputs structured stdout holding credentials.
+//
+// See the client.authentiction.k8s.io API group for specifications of the exact input
+// and output format
+type ExecConfig struct {
+ // Command to execute.
+ Command string `json:"command"`
+ // Arguments to pass to the command when executing it.
+ // +optional
+ Args []string `json:"args"`
+ // Env defines additional environment variables to expose to the process. These
+ // are unioned with the host's environment, as well as variables client-go uses
+ // to pass argument to the plugin.
+ // +optional
+ Env []ExecEnvVar `json:"env"`
+
+ // Preferred input version of the ExecInfo. The returned ExecCredentials MUST use
+ // the same encoding version as the input.
+ APIVersion string `json:"apiVersion,omitempty"`
+}
+
+// ExecEnvVar is used for setting environment variables when executing an exec-based
+// credential plugin.
+type ExecEnvVar struct {
+ Name string `json:"name"`
+ Value string `json:"value"`
+}
+
+// NewConfig is a convenience function that returns a new Config object with non-nil maps
+func NewConfig() *Config {
+ return &Config{
+ Preferences: *NewPreferences(),
+ Clusters: make(map[string]*Cluster),
+ AuthInfos: make(map[string]*AuthInfo),
+ Contexts: make(map[string]*Context),
+ Extensions: make(map[string]runtime.Object),
+ }
+}
+
+// NewContext is a convenience function that returns a new Context
+// object with non-nil maps
+func NewContext() *Context {
+ return &Context{Extensions: make(map[string]runtime.Object)}
+}
+
+// NewCluster is a convenience function that returns a new Cluster
+// object with non-nil maps
+func NewCluster() *Cluster {
+ return &Cluster{Extensions: make(map[string]runtime.Object)}
+}
+
+// NewAuthInfo is a convenience function that returns a new AuthInfo
+// object with non-nil maps
+func NewAuthInfo() *AuthInfo {
+ return &AuthInfo{
+ Extensions: make(map[string]runtime.Object),
+ ImpersonateUserExtra: make(map[string][]string),
+ }
+}
+
+// NewPreferences is a convenience function that returns a new
+// Preferences object with non-nil maps
+func NewPreferences() *Preferences {
+ return &Preferences{Extensions: make(map[string]runtime.Object)}
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/conversion.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/conversion.go
new file mode 100644
index 0000000..2d7142e
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/conversion.go
@@ -0,0 +1,244 @@
+/*
+Copyright 2014 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 v1
+
+import (
+ "fmt"
+ "sort"
+
+ "k8s.io/apimachinery/pkg/conversion"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/client-go/tools/clientcmd/api"
+)
+
+func addConversionFuncs(scheme *runtime.Scheme) error {
+ return scheme.AddConversionFuncs(
+ func(in *Cluster, out *api.Cluster, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *api.Cluster, out *Cluster, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *Preferences, out *api.Preferences, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *api.Preferences, out *Preferences, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *AuthInfo, out *api.AuthInfo, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *api.AuthInfo, out *AuthInfo, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *Context, out *api.Context, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+ func(in *api.Context, out *Context, s conversion.Scope) error {
+ return s.DefaultConvert(in, out, conversion.IgnoreMissingFields)
+ },
+
+ func(in *Config, out *api.Config, s conversion.Scope) error {
+ out.CurrentContext = in.CurrentContext
+ if err := s.Convert(&in.Preferences, &out.Preferences, 0); err != nil {
+ return err
+ }
+
+ out.Clusters = make(map[string]*api.Cluster)
+ if err := s.Convert(&in.Clusters, &out.Clusters, 0); err != nil {
+ return err
+ }
+ out.AuthInfos = make(map[string]*api.AuthInfo)
+ if err := s.Convert(&in.AuthInfos, &out.AuthInfos, 0); err != nil {
+ return err
+ }
+ out.Contexts = make(map[string]*api.Context)
+ if err := s.Convert(&in.Contexts, &out.Contexts, 0); err != nil {
+ return err
+ }
+ out.Extensions = make(map[string]runtime.Object)
+ if err := s.Convert(&in.Extensions, &out.Extensions, 0); err != nil {
+ return err
+ }
+ return nil
+ },
+ func(in *api.Config, out *Config, s conversion.Scope) error {
+ out.CurrentContext = in.CurrentContext
+ if err := s.Convert(&in.Preferences, &out.Preferences, 0); err != nil {
+ return err
+ }
+
+ out.Clusters = make([]NamedCluster, 0, 0)
+ if err := s.Convert(&in.Clusters, &out.Clusters, 0); err != nil {
+ return err
+ }
+ out.AuthInfos = make([]NamedAuthInfo, 0, 0)
+ if err := s.Convert(&in.AuthInfos, &out.AuthInfos, 0); err != nil {
+ return err
+ }
+ out.Contexts = make([]NamedContext, 0, 0)
+ if err := s.Convert(&in.Contexts, &out.Contexts, 0); err != nil {
+ return err
+ }
+ out.Extensions = make([]NamedExtension, 0, 0)
+ if err := s.Convert(&in.Extensions, &out.Extensions, 0); err != nil {
+ return err
+ }
+ return nil
+ },
+ func(in *[]NamedCluster, out *map[string]*api.Cluster, s conversion.Scope) error {
+ for _, curr := range *in {
+ newCluster := api.NewCluster()
+ if err := s.Convert(&curr.Cluster, newCluster, 0); err != nil {
+ return err
+ }
+ if (*out)[curr.Name] == nil {
+ (*out)[curr.Name] = newCluster
+ } else {
+ return fmt.Errorf("error converting *[]NamedCluster into *map[string]*api.Cluster: duplicate name \"%v\" in list: %v", curr.Name, *in)
+ }
+ }
+
+ return nil
+ },
+ func(in *map[string]*api.Cluster, out *[]NamedCluster, s conversion.Scope) error {
+ allKeys := make([]string, 0, len(*in))
+ for key := range *in {
+ allKeys = append(allKeys, key)
+ }
+ sort.Strings(allKeys)
+
+ for _, key := range allKeys {
+ newCluster := (*in)[key]
+ oldCluster := &Cluster{}
+ if err := s.Convert(newCluster, oldCluster, 0); err != nil {
+ return err
+ }
+
+ namedCluster := NamedCluster{key, *oldCluster}
+ *out = append(*out, namedCluster)
+ }
+
+ return nil
+ },
+ func(in *[]NamedAuthInfo, out *map[string]*api.AuthInfo, s conversion.Scope) error {
+ for _, curr := range *in {
+ newAuthInfo := api.NewAuthInfo()
+ if err := s.Convert(&curr.AuthInfo, newAuthInfo, 0); err != nil {
+ return err
+ }
+ if (*out)[curr.Name] == nil {
+ (*out)[curr.Name] = newAuthInfo
+ } else {
+ return fmt.Errorf("error converting *[]NamedAuthInfo into *map[string]*api.AuthInfo: duplicate name \"%v\" in list: %v", curr.Name, *in)
+ }
+ }
+
+ return nil
+ },
+ func(in *map[string]*api.AuthInfo, out *[]NamedAuthInfo, s conversion.Scope) error {
+ allKeys := make([]string, 0, len(*in))
+ for key := range *in {
+ allKeys = append(allKeys, key)
+ }
+ sort.Strings(allKeys)
+
+ for _, key := range allKeys {
+ newAuthInfo := (*in)[key]
+ oldAuthInfo := &AuthInfo{}
+ if err := s.Convert(newAuthInfo, oldAuthInfo, 0); err != nil {
+ return err
+ }
+
+ namedAuthInfo := NamedAuthInfo{key, *oldAuthInfo}
+ *out = append(*out, namedAuthInfo)
+ }
+
+ return nil
+ },
+ func(in *[]NamedContext, out *map[string]*api.Context, s conversion.Scope) error {
+ for _, curr := range *in {
+ newContext := api.NewContext()
+ if err := s.Convert(&curr.Context, newContext, 0); err != nil {
+ return err
+ }
+ if (*out)[curr.Name] == nil {
+ (*out)[curr.Name] = newContext
+ } else {
+ return fmt.Errorf("error converting *[]NamedContext into *map[string]*api.Context: duplicate name \"%v\" in list: %v", curr.Name, *in)
+ }
+ }
+
+ return nil
+ },
+ func(in *map[string]*api.Context, out *[]NamedContext, s conversion.Scope) error {
+ allKeys := make([]string, 0, len(*in))
+ for key := range *in {
+ allKeys = append(allKeys, key)
+ }
+ sort.Strings(allKeys)
+
+ for _, key := range allKeys {
+ newContext := (*in)[key]
+ oldContext := &Context{}
+ if err := s.Convert(newContext, oldContext, 0); err != nil {
+ return err
+ }
+
+ namedContext := NamedContext{key, *oldContext}
+ *out = append(*out, namedContext)
+ }
+
+ return nil
+ },
+ func(in *[]NamedExtension, out *map[string]runtime.Object, s conversion.Scope) error {
+ for _, curr := range *in {
+ var newExtension runtime.Object
+ if err := s.Convert(&curr.Extension, &newExtension, 0); err != nil {
+ return err
+ }
+ if (*out)[curr.Name] == nil {
+ (*out)[curr.Name] = newExtension
+ } else {
+ return fmt.Errorf("error converting *[]NamedExtension into *map[string]runtime.Object: duplicate name \"%v\" in list: %v", curr.Name, *in)
+ }
+ }
+
+ return nil
+ },
+ func(in *map[string]runtime.Object, out *[]NamedExtension, s conversion.Scope) error {
+ allKeys := make([]string, 0, len(*in))
+ for key := range *in {
+ allKeys = append(allKeys, key)
+ }
+ sort.Strings(allKeys)
+
+ for _, key := range allKeys {
+ newExtension := (*in)[key]
+ oldExtension := &runtime.RawExtension{}
+ if err := s.Convert(newExtension, oldExtension, 0); err != nil {
+ return err
+ }
+
+ namedExtension := NamedExtension{key, *oldExtension}
+ *out = append(*out, namedExtension)
+ }
+
+ return nil
+ },
+ )
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/doc.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/doc.go
new file mode 100644
index 0000000..9750cf7
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/doc.go
@@ -0,0 +1,18 @@
+/*
+Copyright 2015 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.
+*/
+
+// +k8s:deepcopy-gen=package
+package v1
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/register.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/register.go
new file mode 100644
index 0000000..7b91d50
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/register.go
@@ -0,0 +1,56 @@
+/*
+Copyright 2014 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 v1
+
+import (
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// SchemeGroupVersion is group version used to register these objects
+// TODO this should be in the "kubeconfig" group
+var SchemeGroupVersion = schema.GroupVersion{Group: "", Version: "v1"}
+
+var (
+ // TODO: move SchemeBuilder with zz_generated.deepcopy.go to k8s.io/api.
+ // localSchemeBuilder and AddToScheme will stay in k8s.io/kubernetes.
+ SchemeBuilder runtime.SchemeBuilder
+ localSchemeBuilder = &SchemeBuilder
+ AddToScheme = localSchemeBuilder.AddToScheme
+)
+
+func init() {
+ // We only register manually written functions here. The registration of the
+ // generated functions takes place in the generated files. The separation
+ // makes the code compile even when the generated files are missing.
+ localSchemeBuilder.Register(addKnownTypes, addConversionFuncs)
+}
+
+func addKnownTypes(scheme *runtime.Scheme) error {
+ scheme.AddKnownTypes(SchemeGroupVersion,
+ &Config{},
+ )
+ return nil
+}
+
+func (obj *Config) GetObjectKind() schema.ObjectKind { return obj }
+func (obj *Config) SetGroupVersionKind(gvk schema.GroupVersionKind) {
+ obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
+}
+func (obj *Config) GroupVersionKind() schema.GroupVersionKind {
+ return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/types.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/types.go
new file mode 100644
index 0000000..56afb60
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/types.go
@@ -0,0 +1,203 @@
+/*
+Copyright 2014 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 v1
+
+import (
+ "k8s.io/apimachinery/pkg/runtime"
+)
+
+// Where possible, json tags match the cli argument names.
+// Top level config objects and all values required for proper functioning are not "omitempty". Any truly optional piece of config is allowed to be omitted.
+
+// Config holds the information needed to build connect to remote kubernetes clusters as a given user
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+type Config struct {
+ // Legacy field from pkg/api/types.go TypeMeta.
+ // TODO(jlowdermilk): remove this after eliminating downstream dependencies.
+ // +optional
+ Kind string `json:"kind,omitempty"`
+ // Legacy field from pkg/api/types.go TypeMeta.
+ // TODO(jlowdermilk): remove this after eliminating downstream dependencies.
+ // +optional
+ APIVersion string `json:"apiVersion,omitempty"`
+ // Preferences holds general information to be use for cli interactions
+ Preferences Preferences `json:"preferences"`
+ // Clusters is a map of referencable names to cluster configs
+ Clusters []NamedCluster `json:"clusters"`
+ // AuthInfos is a map of referencable names to user configs
+ AuthInfos []NamedAuthInfo `json:"users"`
+ // Contexts is a map of referencable names to context configs
+ Contexts []NamedContext `json:"contexts"`
+ // CurrentContext is the name of the context that you would like to use by default
+ CurrentContext string `json:"current-context"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions []NamedExtension `json:"extensions,omitempty"`
+}
+
+type Preferences struct {
+ // +optional
+ Colors bool `json:"colors,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions []NamedExtension `json:"extensions,omitempty"`
+}
+
+// Cluster contains information about how to communicate with a kubernetes cluster
+type Cluster struct {
+ // Server is the address of the kubernetes cluster (https://hostname:port).
+ Server string `json:"server"`
+ // InsecureSkipTLSVerify skips the validity check for the server's certificate. This will make your HTTPS connections insecure.
+ // +optional
+ InsecureSkipTLSVerify bool `json:"insecure-skip-tls-verify,omitempty"`
+ // CertificateAuthority is the path to a cert file for the certificate authority.
+ // +optional
+ CertificateAuthority string `json:"certificate-authority,omitempty"`
+ // CertificateAuthorityData contains PEM-encoded certificate authority certificates. Overrides CertificateAuthority
+ // +optional
+ CertificateAuthorityData []byte `json:"certificate-authority-data,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions []NamedExtension `json:"extensions,omitempty"`
+}
+
+// AuthInfo contains information that describes identity information. This is use to tell the kubernetes cluster who you are.
+type AuthInfo struct {
+ // ClientCertificate is the path to a client cert file for TLS.
+ // +optional
+ ClientCertificate string `json:"client-certificate,omitempty"`
+ // ClientCertificateData contains PEM-encoded data from a client cert file for TLS. Overrides ClientCertificate
+ // +optional
+ ClientCertificateData []byte `json:"client-certificate-data,omitempty"`
+ // ClientKey is the path to a client key file for TLS.
+ // +optional
+ ClientKey string `json:"client-key,omitempty"`
+ // ClientKeyData contains PEM-encoded data from a client key file for TLS. Overrides ClientKey
+ // +optional
+ ClientKeyData []byte `json:"client-key-data,omitempty"`
+ // Token is the bearer token for authentication to the kubernetes cluster.
+ // +optional
+ Token string `json:"token,omitempty"`
+ // TokenFile is a pointer to a file that contains a bearer token (as described above). If both Token and TokenFile are present, Token takes precedence.
+ // +optional
+ TokenFile string `json:"tokenFile,omitempty"`
+ // Impersonate is the username to imperonate. The name matches the flag.
+ // +optional
+ Impersonate string `json:"as,omitempty"`
+ // ImpersonateGroups is the groups to imperonate.
+ // +optional
+ ImpersonateGroups []string `json:"as-groups,omitempty"`
+ // ImpersonateUserExtra contains additional information for impersonated user.
+ // +optional
+ ImpersonateUserExtra map[string][]string `json:"as-user-extra,omitempty"`
+ // Username is the username for basic authentication to the kubernetes cluster.
+ // +optional
+ Username string `json:"username,omitempty"`
+ // Password is the password for basic authentication to the kubernetes cluster.
+ // +optional
+ Password string `json:"password,omitempty"`
+ // AuthProvider specifies a custom authentication plugin for the kubernetes cluster.
+ // +optional
+ AuthProvider *AuthProviderConfig `json:"auth-provider,omitempty"`
+ // Exec specifies a custom exec-based authentication plugin for the kubernetes cluster.
+ // +optional
+ Exec *ExecConfig `json:"exec,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions []NamedExtension `json:"extensions,omitempty"`
+}
+
+// Context is a tuple of references to a cluster (how do I communicate with a kubernetes cluster), a user (how do I identify myself), and a namespace (what subset of resources do I want to work with)
+type Context struct {
+ // Cluster is the name of the cluster for this context
+ Cluster string `json:"cluster"`
+ // AuthInfo is the name of the authInfo for this context
+ AuthInfo string `json:"user"`
+ // Namespace is the default namespace to use on unspecified requests
+ // +optional
+ Namespace string `json:"namespace,omitempty"`
+ // Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
+ // +optional
+ Extensions []NamedExtension `json:"extensions,omitempty"`
+}
+
+// NamedCluster relates nicknames to cluster information
+type NamedCluster struct {
+ // Name is the nickname for this Cluster
+ Name string `json:"name"`
+ // Cluster holds the cluster information
+ Cluster Cluster `json:"cluster"`
+}
+
+// NamedContext relates nicknames to context information
+type NamedContext struct {
+ // Name is the nickname for this Context
+ Name string `json:"name"`
+ // Context holds the context information
+ Context Context `json:"context"`
+}
+
+// NamedAuthInfo relates nicknames to auth information
+type NamedAuthInfo struct {
+ // Name is the nickname for this AuthInfo
+ Name string `json:"name"`
+ // AuthInfo holds the auth information
+ AuthInfo AuthInfo `json:"user"`
+}
+
+// NamedExtension relates nicknames to extension information
+type NamedExtension struct {
+ // Name is the nickname for this Extension
+ Name string `json:"name"`
+ // Extension holds the extension information
+ Extension runtime.RawExtension `json:"extension"`
+}
+
+// AuthProviderConfig holds the configuration for a specified auth provider.
+type AuthProviderConfig struct {
+ Name string `json:"name"`
+ Config map[string]string `json:"config"`
+}
+
+// ExecConfig specifies a command to provide client credentials. The command is exec'd
+// and outputs structured stdout holding credentials.
+//
+// See the client.authentiction.k8s.io API group for specifications of the exact input
+// and output format
+type ExecConfig struct {
+ // Command to execute.
+ Command string `json:"command"`
+ // Arguments to pass to the command when executing it.
+ // +optional
+ Args []string `json:"args"`
+ // Env defines additional environment variables to expose to the process. These
+ // are unioned with the host's environment, as well as variables client-go uses
+ // to pass argument to the plugin.
+ // +optional
+ Env []ExecEnvVar `json:"env"`
+
+ // Preferred input version of the ExecInfo. The returned ExecCredentials MUST use
+ // the same encoding version as the input.
+ APIVersion string `json:"apiVersion,omitempty"`
+}
+
+// ExecEnvVar is used for setting environment variables when executing an exec-based
+// credential plugin.
+type ExecEnvVar struct {
+ Name string `json:"name"`
+ Value string `json:"value"`
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/zz_generated.deepcopy.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/zz_generated.deepcopy.go
new file mode 100644
index 0000000..bb0f352
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/v1/zz_generated.deepcopy.go
@@ -0,0 +1,353 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package v1
+
+import (
+ runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AuthInfo) DeepCopyInto(out *AuthInfo) {
+ *out = *in
+ if in.ClientCertificateData != nil {
+ in, out := &in.ClientCertificateData, &out.ClientCertificateData
+ *out = make([]byte, len(*in))
+ copy(*out, *in)
+ }
+ if in.ClientKeyData != nil {
+ in, out := &in.ClientKeyData, &out.ClientKeyData
+ *out = make([]byte, len(*in))
+ copy(*out, *in)
+ }
+ if in.ImpersonateGroups != nil {
+ in, out := &in.ImpersonateGroups, &out.ImpersonateGroups
+ *out = make([]string, len(*in))
+ copy(*out, *in)
+ }
+ if in.ImpersonateUserExtra != nil {
+ in, out := &in.ImpersonateUserExtra, &out.ImpersonateUserExtra
+ *out = make(map[string][]string, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = make([]string, len(val))
+ copy((*out)[key], val)
+ }
+ }
+ }
+ if in.AuthProvider != nil {
+ in, out := &in.AuthProvider, &out.AuthProvider
+ if *in == nil {
+ *out = nil
+ } else {
+ *out = new(AuthProviderConfig)
+ (*in).DeepCopyInto(*out)
+ }
+ }
+ if in.Exec != nil {
+ in, out := &in.Exec, &out.Exec
+ if *in == nil {
+ *out = nil
+ } else {
+ *out = new(ExecConfig)
+ (*in).DeepCopyInto(*out)
+ }
+ }
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make([]NamedExtension, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AuthInfo.
+func (in *AuthInfo) DeepCopy() *AuthInfo {
+ if in == nil {
+ return nil
+ }
+ out := new(AuthInfo)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AuthProviderConfig) DeepCopyInto(out *AuthProviderConfig) {
+ *out = *in
+ if in.Config != nil {
+ in, out := &in.Config, &out.Config
+ *out = make(map[string]string, len(*in))
+ for key, val := range *in {
+ (*out)[key] = val
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AuthProviderConfig.
+func (in *AuthProviderConfig) DeepCopy() *AuthProviderConfig {
+ if in == nil {
+ return nil
+ }
+ out := new(AuthProviderConfig)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Cluster) DeepCopyInto(out *Cluster) {
+ *out = *in
+ if in.CertificateAuthorityData != nil {
+ in, out := &in.CertificateAuthorityData, &out.CertificateAuthorityData
+ *out = make([]byte, len(*in))
+ copy(*out, *in)
+ }
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make([]NamedExtension, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Cluster.
+func (in *Cluster) DeepCopy() *Cluster {
+ if in == nil {
+ return nil
+ }
+ out := new(Cluster)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Config) DeepCopyInto(out *Config) {
+ *out = *in
+ in.Preferences.DeepCopyInto(&out.Preferences)
+ if in.Clusters != nil {
+ in, out := &in.Clusters, &out.Clusters
+ *out = make([]NamedCluster, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ if in.AuthInfos != nil {
+ in, out := &in.AuthInfos, &out.AuthInfos
+ *out = make([]NamedAuthInfo, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ if in.Contexts != nil {
+ in, out := &in.Contexts, &out.Contexts
+ *out = make([]NamedContext, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make([]NamedExtension, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Config.
+func (in *Config) DeepCopy() *Config {
+ if in == nil {
+ return nil
+ }
+ out := new(Config)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *Config) DeepCopyObject() runtime.Object {
+ if c := in.DeepCopy(); c != nil {
+ return c
+ }
+ return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Context) DeepCopyInto(out *Context) {
+ *out = *in
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make([]NamedExtension, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Context.
+func (in *Context) DeepCopy() *Context {
+ if in == nil {
+ return nil
+ }
+ out := new(Context)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ExecConfig) DeepCopyInto(out *ExecConfig) {
+ *out = *in
+ if in.Args != nil {
+ in, out := &in.Args, &out.Args
+ *out = make([]string, len(*in))
+ copy(*out, *in)
+ }
+ if in.Env != nil {
+ in, out := &in.Env, &out.Env
+ *out = make([]ExecEnvVar, len(*in))
+ copy(*out, *in)
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExecConfig.
+func (in *ExecConfig) DeepCopy() *ExecConfig {
+ if in == nil {
+ return nil
+ }
+ out := new(ExecConfig)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ExecEnvVar) DeepCopyInto(out *ExecEnvVar) {
+ *out = *in
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExecEnvVar.
+func (in *ExecEnvVar) DeepCopy() *ExecEnvVar {
+ if in == nil {
+ return nil
+ }
+ out := new(ExecEnvVar)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NamedAuthInfo) DeepCopyInto(out *NamedAuthInfo) {
+ *out = *in
+ in.AuthInfo.DeepCopyInto(&out.AuthInfo)
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NamedAuthInfo.
+func (in *NamedAuthInfo) DeepCopy() *NamedAuthInfo {
+ if in == nil {
+ return nil
+ }
+ out := new(NamedAuthInfo)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NamedCluster) DeepCopyInto(out *NamedCluster) {
+ *out = *in
+ in.Cluster.DeepCopyInto(&out.Cluster)
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NamedCluster.
+func (in *NamedCluster) DeepCopy() *NamedCluster {
+ if in == nil {
+ return nil
+ }
+ out := new(NamedCluster)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NamedContext) DeepCopyInto(out *NamedContext) {
+ *out = *in
+ in.Context.DeepCopyInto(&out.Context)
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NamedContext.
+func (in *NamedContext) DeepCopy() *NamedContext {
+ if in == nil {
+ return nil
+ }
+ out := new(NamedContext)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NamedExtension) DeepCopyInto(out *NamedExtension) {
+ *out = *in
+ in.Extension.DeepCopyInto(&out.Extension)
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NamedExtension.
+func (in *NamedExtension) DeepCopy() *NamedExtension {
+ if in == nil {
+ return nil
+ }
+ out := new(NamedExtension)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Preferences) DeepCopyInto(out *Preferences) {
+ *out = *in
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make([]NamedExtension, len(*in))
+ for i := range *in {
+ (*in)[i].DeepCopyInto(&(*out)[i])
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Preferences.
+func (in *Preferences) DeepCopy() *Preferences {
+ if in == nil {
+ return nil
+ }
+ out := new(Preferences)
+ in.DeepCopyInto(out)
+ return out
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/zz_generated.deepcopy.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/zz_generated.deepcopy.go
new file mode 100644
index 0000000..b90aa8d
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/api/zz_generated.deepcopy.go
@@ -0,0 +1,320 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package api
+
+import (
+ runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AuthInfo) DeepCopyInto(out *AuthInfo) {
+ *out = *in
+ if in.ClientCertificateData != nil {
+ in, out := &in.ClientCertificateData, &out.ClientCertificateData
+ *out = make([]byte, len(*in))
+ copy(*out, *in)
+ }
+ if in.ClientKeyData != nil {
+ in, out := &in.ClientKeyData, &out.ClientKeyData
+ *out = make([]byte, len(*in))
+ copy(*out, *in)
+ }
+ if in.ImpersonateGroups != nil {
+ in, out := &in.ImpersonateGroups, &out.ImpersonateGroups
+ *out = make([]string, len(*in))
+ copy(*out, *in)
+ }
+ if in.ImpersonateUserExtra != nil {
+ in, out := &in.ImpersonateUserExtra, &out.ImpersonateUserExtra
+ *out = make(map[string][]string, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = make([]string, len(val))
+ copy((*out)[key], val)
+ }
+ }
+ }
+ if in.AuthProvider != nil {
+ in, out := &in.AuthProvider, &out.AuthProvider
+ if *in == nil {
+ *out = nil
+ } else {
+ *out = new(AuthProviderConfig)
+ (*in).DeepCopyInto(*out)
+ }
+ }
+ if in.Exec != nil {
+ in, out := &in.Exec, &out.Exec
+ if *in == nil {
+ *out = nil
+ } else {
+ *out = new(ExecConfig)
+ (*in).DeepCopyInto(*out)
+ }
+ }
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make(map[string]runtime.Object, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = val.DeepCopyObject()
+ }
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AuthInfo.
+func (in *AuthInfo) DeepCopy() *AuthInfo {
+ if in == nil {
+ return nil
+ }
+ out := new(AuthInfo)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AuthProviderConfig) DeepCopyInto(out *AuthProviderConfig) {
+ *out = *in
+ if in.Config != nil {
+ in, out := &in.Config, &out.Config
+ *out = make(map[string]string, len(*in))
+ for key, val := range *in {
+ (*out)[key] = val
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AuthProviderConfig.
+func (in *AuthProviderConfig) DeepCopy() *AuthProviderConfig {
+ if in == nil {
+ return nil
+ }
+ out := new(AuthProviderConfig)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Cluster) DeepCopyInto(out *Cluster) {
+ *out = *in
+ if in.CertificateAuthorityData != nil {
+ in, out := &in.CertificateAuthorityData, &out.CertificateAuthorityData
+ *out = make([]byte, len(*in))
+ copy(*out, *in)
+ }
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make(map[string]runtime.Object, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = val.DeepCopyObject()
+ }
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Cluster.
+func (in *Cluster) DeepCopy() *Cluster {
+ if in == nil {
+ return nil
+ }
+ out := new(Cluster)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Config) DeepCopyInto(out *Config) {
+ *out = *in
+ in.Preferences.DeepCopyInto(&out.Preferences)
+ if in.Clusters != nil {
+ in, out := &in.Clusters, &out.Clusters
+ *out = make(map[string]*Cluster, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = new(Cluster)
+ val.DeepCopyInto((*out)[key])
+ }
+ }
+ }
+ if in.AuthInfos != nil {
+ in, out := &in.AuthInfos, &out.AuthInfos
+ *out = make(map[string]*AuthInfo, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = new(AuthInfo)
+ val.DeepCopyInto((*out)[key])
+ }
+ }
+ }
+ if in.Contexts != nil {
+ in, out := &in.Contexts, &out.Contexts
+ *out = make(map[string]*Context, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = new(Context)
+ val.DeepCopyInto((*out)[key])
+ }
+ }
+ }
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make(map[string]runtime.Object, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = val.DeepCopyObject()
+ }
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Config.
+func (in *Config) DeepCopy() *Config {
+ if in == nil {
+ return nil
+ }
+ out := new(Config)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *Config) DeepCopyObject() runtime.Object {
+ if c := in.DeepCopy(); c != nil {
+ return c
+ }
+ return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Context) DeepCopyInto(out *Context) {
+ *out = *in
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make(map[string]runtime.Object, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = val.DeepCopyObject()
+ }
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Context.
+func (in *Context) DeepCopy() *Context {
+ if in == nil {
+ return nil
+ }
+ out := new(Context)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ExecConfig) DeepCopyInto(out *ExecConfig) {
+ *out = *in
+ if in.Args != nil {
+ in, out := &in.Args, &out.Args
+ *out = make([]string, len(*in))
+ copy(*out, *in)
+ }
+ if in.Env != nil {
+ in, out := &in.Env, &out.Env
+ *out = make([]ExecEnvVar, len(*in))
+ copy(*out, *in)
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExecConfig.
+func (in *ExecConfig) DeepCopy() *ExecConfig {
+ if in == nil {
+ return nil
+ }
+ out := new(ExecConfig)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ExecEnvVar) DeepCopyInto(out *ExecEnvVar) {
+ *out = *in
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExecEnvVar.
+func (in *ExecEnvVar) DeepCopy() *ExecEnvVar {
+ if in == nil {
+ return nil
+ }
+ out := new(ExecEnvVar)
+ in.DeepCopyInto(out)
+ return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Preferences) DeepCopyInto(out *Preferences) {
+ *out = *in
+ if in.Extensions != nil {
+ in, out := &in.Extensions, &out.Extensions
+ *out = make(map[string]runtime.Object, len(*in))
+ for key, val := range *in {
+ if val == nil {
+ (*out)[key] = nil
+ } else {
+ (*out)[key] = val.DeepCopyObject()
+ }
+ }
+ }
+ return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Preferences.
+func (in *Preferences) DeepCopy() *Preferences {
+ if in == nil {
+ return nil
+ }
+ out := new(Preferences)
+ in.DeepCopyInto(out)
+ return out
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/auth_loaders.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/auth_loaders.go
new file mode 100644
index 0000000..1d3c11d
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/auth_loaders.go
@@ -0,0 +1,111 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "encoding/json"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "os"
+
+ "golang.org/x/crypto/ssh/terminal"
+
+ clientauth "k8s.io/client-go/tools/auth"
+)
+
+// AuthLoaders are used to build clientauth.Info objects.
+type AuthLoader interface {
+ // LoadAuth takes a path to a config file and can then do anything it needs in order to return a valid clientauth.Info
+ LoadAuth(path string) (*clientauth.Info, error)
+}
+
+// default implementation of an AuthLoader
+type defaultAuthLoader struct{}
+
+// LoadAuth for defaultAuthLoader simply delegates to clientauth.LoadFromFile
+func (*defaultAuthLoader) LoadAuth(path string) (*clientauth.Info, error) {
+ return clientauth.LoadFromFile(path)
+}
+
+type PromptingAuthLoader struct {
+ reader io.Reader
+}
+
+// LoadAuth parses an AuthInfo object from a file path. It prompts user and creates file if it doesn't exist.
+func (a *PromptingAuthLoader) LoadAuth(path string) (*clientauth.Info, error) {
+ // Prompt for user/pass and write a file if none exists.
+ if _, err := os.Stat(path); os.IsNotExist(err) {
+ authPtr, err := a.Prompt()
+ auth := *authPtr
+ if err != nil {
+ return nil, err
+ }
+ data, err := json.Marshal(auth)
+ if err != nil {
+ return &auth, err
+ }
+ err = ioutil.WriteFile(path, data, 0600)
+ return &auth, err
+ }
+ authPtr, err := clientauth.LoadFromFile(path)
+ if err != nil {
+ return nil, err
+ }
+ return authPtr, nil
+}
+
+// Prompt pulls the user and password from a reader
+func (a *PromptingAuthLoader) Prompt() (*clientauth.Info, error) {
+ var err error
+ auth := &clientauth.Info{}
+ auth.User, err = promptForString("Username", a.reader, true)
+ if err != nil {
+ return nil, err
+ }
+ auth.Password, err = promptForString("Password", nil, false)
+ if err != nil {
+ return nil, err
+ }
+ return auth, nil
+}
+
+func promptForString(field string, r io.Reader, show bool) (result string, err error) {
+ fmt.Printf("Please enter %s: ", field)
+ if show {
+ _, err = fmt.Fscan(r, &result)
+ } else {
+ var data []byte
+ if terminal.IsTerminal(int(os.Stdin.Fd())) {
+ data, err = terminal.ReadPassword(int(os.Stdin.Fd()))
+ result = string(data)
+ } else {
+ return "", fmt.Errorf("error reading input for %s", field)
+ }
+ }
+ return result, err
+}
+
+// NewPromptingAuthLoader is an AuthLoader that parses an AuthInfo object from a file path. It prompts user and creates file if it doesn't exist.
+func NewPromptingAuthLoader(reader io.Reader) *PromptingAuthLoader {
+ return &PromptingAuthLoader{reader}
+}
+
+// NewDefaultAuthLoader returns a default implementation of an AuthLoader that only reads from a config file
+func NewDefaultAuthLoader() AuthLoader {
+ return &defaultAuthLoader{}
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/client_config.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/client_config.go
new file mode 100644
index 0000000..66331a7
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/client_config.go
@@ -0,0 +1,572 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "fmt"
+ "io"
+ "io/ioutil"
+ "net/url"
+ "os"
+ "strings"
+
+ "github.com/golang/glog"
+ "github.com/imdario/mergo"
+
+ restclient "k8s.io/client-go/rest"
+ clientauth "k8s.io/client-go/tools/auth"
+ clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+)
+
+var (
+ // ClusterDefaults has the same behavior as the old EnvVar and DefaultCluster fields
+ // DEPRECATED will be replaced
+ ClusterDefaults = clientcmdapi.Cluster{Server: getDefaultServer()}
+ // DefaultClientConfig represents the legacy behavior of this package for defaulting
+ // DEPRECATED will be replace
+ DefaultClientConfig = DirectClientConfig{*clientcmdapi.NewConfig(), "", &ConfigOverrides{
+ ClusterDefaults: ClusterDefaults,
+ }, nil, NewDefaultClientConfigLoadingRules(), promptedCredentials{}}
+)
+
+// getDefaultServer returns a default setting for DefaultClientConfig
+// DEPRECATED
+func getDefaultServer() string {
+ if server := os.Getenv("KUBERNETES_MASTER"); len(server) > 0 {
+ return server
+ }
+ return "http://localhost:8080"
+}
+
+// ClientConfig is used to make it easy to get an api server client
+type ClientConfig interface {
+ // RawConfig returns the merged result of all overrides
+ RawConfig() (clientcmdapi.Config, error)
+ // ClientConfig returns a complete client config
+ ClientConfig() (*restclient.Config, error)
+ // Namespace returns the namespace resulting from the merged
+ // result of all overrides and a boolean indicating if it was
+ // overridden
+ Namespace() (string, bool, error)
+ // ConfigAccess returns the rules for loading/persisting the config.
+ ConfigAccess() ConfigAccess
+}
+
+type PersistAuthProviderConfigForUser func(user string) restclient.AuthProviderConfigPersister
+
+type promptedCredentials struct {
+ username string
+ password string
+}
+
+// DirectClientConfig is a ClientConfig interface that is backed by a clientcmdapi.Config, options overrides, and an optional fallbackReader for auth information
+type DirectClientConfig struct {
+ config clientcmdapi.Config
+ contextName string
+ overrides *ConfigOverrides
+ fallbackReader io.Reader
+ configAccess ConfigAccess
+ // promptedCredentials store the credentials input by the user
+ promptedCredentials promptedCredentials
+}
+
+// NewDefaultClientConfig creates a DirectClientConfig using the config.CurrentContext as the context name
+func NewDefaultClientConfig(config clientcmdapi.Config, overrides *ConfigOverrides) ClientConfig {
+ return &DirectClientConfig{config, config.CurrentContext, overrides, nil, NewDefaultClientConfigLoadingRules(), promptedCredentials{}}
+}
+
+// NewNonInteractiveClientConfig creates a DirectClientConfig using the passed context name and does not have a fallback reader for auth information
+func NewNonInteractiveClientConfig(config clientcmdapi.Config, contextName string, overrides *ConfigOverrides, configAccess ConfigAccess) ClientConfig {
+ return &DirectClientConfig{config, contextName, overrides, nil, configAccess, promptedCredentials{}}
+}
+
+// NewInteractiveClientConfig creates a DirectClientConfig using the passed context name and a reader in case auth information is not provided via files or flags
+func NewInteractiveClientConfig(config clientcmdapi.Config, contextName string, overrides *ConfigOverrides, fallbackReader io.Reader, configAccess ConfigAccess) ClientConfig {
+ return &DirectClientConfig{config, contextName, overrides, fallbackReader, configAccess, promptedCredentials{}}
+}
+
+// NewClientConfigFromBytes takes your kubeconfig and gives you back a ClientConfig
+func NewClientConfigFromBytes(configBytes []byte) (ClientConfig, error) {
+ config, err := Load(configBytes)
+ if err != nil {
+ return nil, err
+ }
+
+ return &DirectClientConfig{*config, "", &ConfigOverrides{}, nil, nil, promptedCredentials{}}, nil
+}
+
+// RESTConfigFromKubeConfig is a convenience method to give back a restconfig from your kubeconfig bytes.
+// For programmatic access, this is what you want 80% of the time
+func RESTConfigFromKubeConfig(configBytes []byte) (*restclient.Config, error) {
+ clientConfig, err := NewClientConfigFromBytes(configBytes)
+ if err != nil {
+ return nil, err
+ }
+ return clientConfig.ClientConfig()
+}
+
+func (config *DirectClientConfig) RawConfig() (clientcmdapi.Config, error) {
+ return config.config, nil
+}
+
+// ClientConfig implements ClientConfig
+func (config *DirectClientConfig) ClientConfig() (*restclient.Config, error) {
+ // check that getAuthInfo, getContext, and getCluster do not return an error.
+ // Do this before checking if the current config is usable in the event that an
+ // AuthInfo, Context, or Cluster config with user-defined names are not found.
+ // This provides a user with the immediate cause for error if one is found
+ configAuthInfo, err := config.getAuthInfo()
+ if err != nil {
+ return nil, err
+ }
+
+ _, err = config.getContext()
+ if err != nil {
+ return nil, err
+ }
+
+ configClusterInfo, err := config.getCluster()
+ if err != nil {
+ return nil, err
+ }
+
+ if err := config.ConfirmUsable(); err != nil {
+ return nil, err
+ }
+
+ clientConfig := &restclient.Config{}
+ clientConfig.Host = configClusterInfo.Server
+
+ if len(config.overrides.Timeout) > 0 {
+ timeout, err := ParseTimeout(config.overrides.Timeout)
+ if err != nil {
+ return nil, err
+ }
+ clientConfig.Timeout = timeout
+ }
+
+ if u, err := url.ParseRequestURI(clientConfig.Host); err == nil && u.Opaque == "" && len(u.Path) > 1 {
+ u.RawQuery = ""
+ u.Fragment = ""
+ clientConfig.Host = u.String()
+ }
+ if len(configAuthInfo.Impersonate) > 0 {
+ clientConfig.Impersonate = restclient.ImpersonationConfig{
+ UserName: configAuthInfo.Impersonate,
+ Groups: configAuthInfo.ImpersonateGroups,
+ Extra: configAuthInfo.ImpersonateUserExtra,
+ }
+ }
+
+ // only try to read the auth information if we are secure
+ if restclient.IsConfigTransportTLS(*clientConfig) {
+ var err error
+
+ // mergo is a first write wins for map value and a last writing wins for interface values
+ // NOTE: This behavior changed with https://github.com/imdario/mergo/commit/d304790b2ed594794496464fadd89d2bb266600a.
+ // Our mergo.Merge version is older than this change.
+ var persister restclient.AuthProviderConfigPersister
+ if config.configAccess != nil {
+ authInfoName, _ := config.getAuthInfoName()
+ persister = PersisterForUser(config.configAccess, authInfoName)
+ }
+ userAuthPartialConfig, err := config.getUserIdentificationPartialConfig(configAuthInfo, config.fallbackReader, persister)
+ if err != nil {
+ return nil, err
+ }
+ mergo.Merge(clientConfig, userAuthPartialConfig)
+
+ serverAuthPartialConfig, err := getServerIdentificationPartialConfig(configAuthInfo, configClusterInfo)
+ if err != nil {
+ return nil, err
+ }
+ mergo.Merge(clientConfig, serverAuthPartialConfig)
+ }
+
+ return clientConfig, nil
+}
+
+// clientauth.Info object contain both user identification and server identification. We want different precedence orders for
+// both, so we have to split the objects and merge them separately
+// we want this order of precedence for the server identification
+// 1. configClusterInfo (the final result of command line flags and merged .kubeconfig files)
+// 2. configAuthInfo.auth-path (this file can contain information that conflicts with #1, and we want #1 to win the priority)
+// 3. load the ~/.kubernetes_auth file as a default
+func getServerIdentificationPartialConfig(configAuthInfo clientcmdapi.AuthInfo, configClusterInfo clientcmdapi.Cluster) (*restclient.Config, error) {
+ mergedConfig := &restclient.Config{}
+
+ // configClusterInfo holds the information identify the server provided by .kubeconfig
+ configClientConfig := &restclient.Config{}
+ configClientConfig.CAFile = configClusterInfo.CertificateAuthority
+ configClientConfig.CAData = configClusterInfo.CertificateAuthorityData
+ configClientConfig.Insecure = configClusterInfo.InsecureSkipTLSVerify
+ mergo.Merge(mergedConfig, configClientConfig)
+
+ return mergedConfig, nil
+}
+
+// clientauth.Info object contain both user identification and server identification. We want different precedence orders for
+// both, so we have to split the objects and merge them separately
+// we want this order of precedence for user identification
+// 1. configAuthInfo minus auth-path (the final result of command line flags and merged .kubeconfig files)
+// 2. configAuthInfo.auth-path (this file can contain information that conflicts with #1, and we want #1 to win the priority)
+// 3. if there is not enough information to identify the user, load try the ~/.kubernetes_auth file
+// 4. if there is not enough information to identify the user, prompt if possible
+func (config *DirectClientConfig) getUserIdentificationPartialConfig(configAuthInfo clientcmdapi.AuthInfo, fallbackReader io.Reader, persistAuthConfig restclient.AuthProviderConfigPersister) (*restclient.Config, error) {
+ mergedConfig := &restclient.Config{}
+
+ // blindly overwrite existing values based on precedence
+ if len(configAuthInfo.Token) > 0 {
+ mergedConfig.BearerToken = configAuthInfo.Token
+ } else if len(configAuthInfo.TokenFile) > 0 {
+ tokenBytes, err := ioutil.ReadFile(configAuthInfo.TokenFile)
+ if err != nil {
+ return nil, err
+ }
+ mergedConfig.BearerToken = string(tokenBytes)
+ }
+ if len(configAuthInfo.Impersonate) > 0 {
+ mergedConfig.Impersonate = restclient.ImpersonationConfig{
+ UserName: configAuthInfo.Impersonate,
+ Groups: configAuthInfo.ImpersonateGroups,
+ Extra: configAuthInfo.ImpersonateUserExtra,
+ }
+ }
+ if len(configAuthInfo.ClientCertificate) > 0 || len(configAuthInfo.ClientCertificateData) > 0 {
+ mergedConfig.CertFile = configAuthInfo.ClientCertificate
+ mergedConfig.CertData = configAuthInfo.ClientCertificateData
+ mergedConfig.KeyFile = configAuthInfo.ClientKey
+ mergedConfig.KeyData = configAuthInfo.ClientKeyData
+ }
+ if len(configAuthInfo.Username) > 0 || len(configAuthInfo.Password) > 0 {
+ mergedConfig.Username = configAuthInfo.Username
+ mergedConfig.Password = configAuthInfo.Password
+ }
+ if configAuthInfo.AuthProvider != nil {
+ mergedConfig.AuthProvider = configAuthInfo.AuthProvider
+ mergedConfig.AuthConfigPersister = persistAuthConfig
+ }
+ if configAuthInfo.Exec != nil {
+ mergedConfig.ExecProvider = configAuthInfo.Exec
+ }
+
+ // if there still isn't enough information to authenticate the user, try prompting
+ if !canIdentifyUser(*mergedConfig) && (fallbackReader != nil) {
+ if len(config.promptedCredentials.username) > 0 && len(config.promptedCredentials.password) > 0 {
+ mergedConfig.Username = config.promptedCredentials.username
+ mergedConfig.Password = config.promptedCredentials.password
+ return mergedConfig, nil
+ }
+ prompter := NewPromptingAuthLoader(fallbackReader)
+ promptedAuthInfo, err := prompter.Prompt()
+ if err != nil {
+ return nil, err
+ }
+ promptedConfig := makeUserIdentificationConfig(*promptedAuthInfo)
+ previouslyMergedConfig := mergedConfig
+ mergedConfig = &restclient.Config{}
+ mergo.Merge(mergedConfig, promptedConfig)
+ mergo.Merge(mergedConfig, previouslyMergedConfig)
+ config.promptedCredentials.username = mergedConfig.Username
+ config.promptedCredentials.password = mergedConfig.Password
+ }
+
+ return mergedConfig, nil
+}
+
+// makeUserIdentificationFieldsConfig returns a client.Config capable of being merged using mergo for only user identification information
+func makeUserIdentificationConfig(info clientauth.Info) *restclient.Config {
+ config := &restclient.Config{}
+ config.Username = info.User
+ config.Password = info.Password
+ config.CertFile = info.CertFile
+ config.KeyFile = info.KeyFile
+ config.BearerToken = info.BearerToken
+ return config
+}
+
+// makeUserIdentificationFieldsConfig returns a client.Config capable of being merged using mergo for only server identification information
+func makeServerIdentificationConfig(info clientauth.Info) restclient.Config {
+ config := restclient.Config{}
+ config.CAFile = info.CAFile
+ if info.Insecure != nil {
+ config.Insecure = *info.Insecure
+ }
+ return config
+}
+
+func canIdentifyUser(config restclient.Config) bool {
+ return len(config.Username) > 0 ||
+ (len(config.CertFile) > 0 || len(config.CertData) > 0) ||
+ len(config.BearerToken) > 0 ||
+ config.AuthProvider != nil ||
+ config.ExecProvider != nil
+}
+
+// Namespace implements ClientConfig
+func (config *DirectClientConfig) Namespace() (string, bool, error) {
+ if config.overrides != nil && config.overrides.Context.Namespace != "" {
+ // In the event we have an empty config but we do have a namespace override, we should return
+ // the namespace override instead of having config.ConfirmUsable() return an error. This allows
+ // things like in-cluster clients to execute `kubectl get pods --namespace=foo` and have the
+ // --namespace flag honored instead of being ignored.
+ return config.overrides.Context.Namespace, true, nil
+ }
+
+ if err := config.ConfirmUsable(); err != nil {
+ return "", false, err
+ }
+
+ configContext, err := config.getContext()
+ if err != nil {
+ return "", false, err
+ }
+
+ if len(configContext.Namespace) == 0 {
+ return "default", false, nil
+ }
+
+ return configContext.Namespace, false, nil
+}
+
+// ConfigAccess implements ClientConfig
+func (config *DirectClientConfig) ConfigAccess() ConfigAccess {
+ return config.configAccess
+}
+
+// ConfirmUsable looks a particular context and determines if that particular part of the config is useable. There might still be errors in the config,
+// but no errors in the sections requested or referenced. It does not return early so that it can find as many errors as possible.
+func (config *DirectClientConfig) ConfirmUsable() error {
+ validationErrors := make([]error, 0)
+
+ var contextName string
+ if len(config.contextName) != 0 {
+ contextName = config.contextName
+ } else {
+ contextName = config.config.CurrentContext
+ }
+
+ if len(contextName) > 0 {
+ _, exists := config.config.Contexts[contextName]
+ if !exists {
+ validationErrors = append(validationErrors, &errContextNotFound{contextName})
+ }
+ }
+
+ authInfoName, _ := config.getAuthInfoName()
+ authInfo, _ := config.getAuthInfo()
+ validationErrors = append(validationErrors, validateAuthInfo(authInfoName, authInfo)...)
+ clusterName, _ := config.getClusterName()
+ cluster, _ := config.getCluster()
+ validationErrors = append(validationErrors, validateClusterInfo(clusterName, cluster)...)
+ // when direct client config is specified, and our only error is that no server is defined, we should
+ // return a standard "no config" error
+ if len(validationErrors) == 1 && validationErrors[0] == ErrEmptyCluster {
+ return newErrConfigurationInvalid([]error{ErrEmptyConfig})
+ }
+ return newErrConfigurationInvalid(validationErrors)
+}
+
+// getContextName returns the default, or user-set context name, and a boolean that indicates
+// whether the default context name has been overwritten by a user-set flag, or left as its default value
+func (config *DirectClientConfig) getContextName() (string, bool) {
+ if len(config.overrides.CurrentContext) != 0 {
+ return config.overrides.CurrentContext, true
+ }
+ if len(config.contextName) != 0 {
+ return config.contextName, false
+ }
+
+ return config.config.CurrentContext, false
+}
+
+// getAuthInfoName returns a string containing the current authinfo name for the current context,
+// and a boolean indicating whether the default authInfo name is overwritten by a user-set flag, or
+// left as its default value
+func (config *DirectClientConfig) getAuthInfoName() (string, bool) {
+ if len(config.overrides.Context.AuthInfo) != 0 {
+ return config.overrides.Context.AuthInfo, true
+ }
+ context, _ := config.getContext()
+ return context.AuthInfo, false
+}
+
+// getClusterName returns a string containing the default, or user-set cluster name, and a boolean
+// indicating whether the default clusterName has been overwritten by a user-set flag, or left as
+// its default value
+func (config *DirectClientConfig) getClusterName() (string, bool) {
+ if len(config.overrides.Context.Cluster) != 0 {
+ return config.overrides.Context.Cluster, true
+ }
+ context, _ := config.getContext()
+ return context.Cluster, false
+}
+
+// getContext returns the clientcmdapi.Context, or an error if a required context is not found.
+func (config *DirectClientConfig) getContext() (clientcmdapi.Context, error) {
+ contexts := config.config.Contexts
+ contextName, required := config.getContextName()
+
+ mergedContext := clientcmdapi.NewContext()
+ if configContext, exists := contexts[contextName]; exists {
+ mergo.Merge(mergedContext, configContext)
+ } else if required {
+ return clientcmdapi.Context{}, fmt.Errorf("context %q does not exist", contextName)
+ }
+ mergo.Merge(mergedContext, config.overrides.Context)
+
+ return *mergedContext, nil
+}
+
+// getAuthInfo returns the clientcmdapi.AuthInfo, or an error if a required auth info is not found.
+func (config *DirectClientConfig) getAuthInfo() (clientcmdapi.AuthInfo, error) {
+ authInfos := config.config.AuthInfos
+ authInfoName, required := config.getAuthInfoName()
+
+ mergedAuthInfo := clientcmdapi.NewAuthInfo()
+ if configAuthInfo, exists := authInfos[authInfoName]; exists {
+ mergo.Merge(mergedAuthInfo, configAuthInfo)
+ } else if required {
+ return clientcmdapi.AuthInfo{}, fmt.Errorf("auth info %q does not exist", authInfoName)
+ }
+ mergo.Merge(mergedAuthInfo, config.overrides.AuthInfo)
+
+ return *mergedAuthInfo, nil
+}
+
+// getCluster returns the clientcmdapi.Cluster, or an error if a required cluster is not found.
+func (config *DirectClientConfig) getCluster() (clientcmdapi.Cluster, error) {
+ clusterInfos := config.config.Clusters
+ clusterInfoName, required := config.getClusterName()
+
+ mergedClusterInfo := clientcmdapi.NewCluster()
+ mergo.Merge(mergedClusterInfo, config.overrides.ClusterDefaults)
+ if configClusterInfo, exists := clusterInfos[clusterInfoName]; exists {
+ mergo.Merge(mergedClusterInfo, configClusterInfo)
+ } else if required {
+ return clientcmdapi.Cluster{}, fmt.Errorf("cluster %q does not exist", clusterInfoName)
+ }
+ mergo.Merge(mergedClusterInfo, config.overrides.ClusterInfo)
+ // An override of --insecure-skip-tls-verify=true and no accompanying CA/CA data should clear already-set CA/CA data
+ // otherwise, a kubeconfig containing a CA reference would return an error that "CA and insecure-skip-tls-verify couldn't both be set"
+ caLen := len(config.overrides.ClusterInfo.CertificateAuthority)
+ caDataLen := len(config.overrides.ClusterInfo.CertificateAuthorityData)
+ if config.overrides.ClusterInfo.InsecureSkipTLSVerify && caLen == 0 && caDataLen == 0 {
+ mergedClusterInfo.CertificateAuthority = ""
+ mergedClusterInfo.CertificateAuthorityData = nil
+ }
+
+ return *mergedClusterInfo, nil
+}
+
+// inClusterClientConfig makes a config that will work from within a kubernetes cluster container environment.
+// Can take options overrides for flags explicitly provided to the command inside the cluster container.
+type inClusterClientConfig struct {
+ overrides *ConfigOverrides
+ inClusterConfigProvider func() (*restclient.Config, error)
+}
+
+var _ ClientConfig = &inClusterClientConfig{}
+
+func (config *inClusterClientConfig) RawConfig() (clientcmdapi.Config, error) {
+ return clientcmdapi.Config{}, fmt.Errorf("inCluster environment config doesn't support multiple clusters")
+}
+
+func (config *inClusterClientConfig) ClientConfig() (*restclient.Config, error) {
+ if config.inClusterConfigProvider == nil {
+ config.inClusterConfigProvider = restclient.InClusterConfig
+ }
+
+ icc, err := config.inClusterConfigProvider()
+ if err != nil {
+ return nil, err
+ }
+
+ // in-cluster configs only takes a host, token, or CA file
+ // if any of them were individually provided, overwrite anything else
+ if config.overrides != nil {
+ if server := config.overrides.ClusterInfo.Server; len(server) > 0 {
+ icc.Host = server
+ }
+ if token := config.overrides.AuthInfo.Token; len(token) > 0 {
+ icc.BearerToken = token
+ }
+ if certificateAuthorityFile := config.overrides.ClusterInfo.CertificateAuthority; len(certificateAuthorityFile) > 0 {
+ icc.TLSClientConfig.CAFile = certificateAuthorityFile
+ }
+ }
+
+ return icc, err
+}
+
+func (config *inClusterClientConfig) Namespace() (string, bool, error) {
+ // This way assumes you've set the POD_NAMESPACE environment variable using the downward API.
+ // This check has to be done first for backwards compatibility with the way InClusterConfig was originally set up
+ if ns := os.Getenv("POD_NAMESPACE"); ns != "" {
+ return ns, false, nil
+ }
+
+ // Fall back to the namespace associated with the service account token, if available
+ if data, err := ioutil.ReadFile("/var/run/secrets/kubernetes.io/serviceaccount/namespace"); err == nil {
+ if ns := strings.TrimSpace(string(data)); len(ns) > 0 {
+ return ns, false, nil
+ }
+ }
+
+ return "default", false, nil
+}
+
+func (config *inClusterClientConfig) ConfigAccess() ConfigAccess {
+ return NewDefaultClientConfigLoadingRules()
+}
+
+// Possible returns true if loading an inside-kubernetes-cluster is possible.
+func (config *inClusterClientConfig) Possible() bool {
+ fi, err := os.Stat("/var/run/secrets/kubernetes.io/serviceaccount/token")
+ return os.Getenv("KUBERNETES_SERVICE_HOST") != "" &&
+ os.Getenv("KUBERNETES_SERVICE_PORT") != "" &&
+ err == nil && !fi.IsDir()
+}
+
+// BuildConfigFromFlags is a helper function that builds configs from a master
+// url or a kubeconfig filepath. These are passed in as command line flags for cluster
+// components. Warnings should reflect this usage. If neither masterUrl or kubeconfigPath
+// are passed in we fallback to inClusterConfig. If inClusterConfig fails, we fallback
+// to the default config.
+func BuildConfigFromFlags(masterUrl, kubeconfigPath string) (*restclient.Config, error) {
+ if kubeconfigPath == "" && masterUrl == "" {
+ glog.Warningf("Neither --kubeconfig nor --master was specified. Using the inClusterConfig. This might not work.")
+ kubeconfig, err := restclient.InClusterConfig()
+ if err == nil {
+ return kubeconfig, nil
+ }
+ glog.Warning("error creating inClusterConfig, falling back to default config: ", err)
+ }
+ return NewNonInteractiveDeferredLoadingClientConfig(
+ &ClientConfigLoadingRules{ExplicitPath: kubeconfigPath},
+ &ConfigOverrides{ClusterInfo: clientcmdapi.Cluster{Server: masterUrl}}).ClientConfig()
+}
+
+// BuildConfigFromKubeconfigGetter is a helper function that builds configs from a master
+// url and a kubeconfigGetter.
+func BuildConfigFromKubeconfigGetter(masterUrl string, kubeconfigGetter KubeconfigGetter) (*restclient.Config, error) {
+ // TODO: We do not need a DeferredLoader here. Refactor code and see if we can use DirectClientConfig here.
+ cc := NewNonInteractiveDeferredLoadingClientConfig(
+ &ClientConfigGetter{kubeconfigGetter: kubeconfigGetter},
+ &ConfigOverrides{ClusterInfo: clientcmdapi.Cluster{Server: masterUrl}})
+ return cc.ClientConfig()
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/config.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/config.go
new file mode 100644
index 0000000..7092c5b
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/config.go
@@ -0,0 +1,474 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "errors"
+ "os"
+ "path"
+ "path/filepath"
+ "reflect"
+ "sort"
+
+ "github.com/golang/glog"
+
+ restclient "k8s.io/client-go/rest"
+ clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+)
+
+// ConfigAccess is used by subcommands and methods in this package to load and modify the appropriate config files
+type ConfigAccess interface {
+ // GetLoadingPrecedence returns the slice of files that should be used for loading and inspecting the config
+ GetLoadingPrecedence() []string
+ // GetStartingConfig returns the config that subcommands should being operating against. It may or may not be merged depending on loading rules
+ GetStartingConfig() (*clientcmdapi.Config, error)
+ // GetDefaultFilename returns the name of the file you should write into (create if necessary), if you're trying to create a new stanza as opposed to updating an existing one.
+ GetDefaultFilename() string
+ // IsExplicitFile indicates whether or not this command is interested in exactly one file. This implementation only ever does that via a flag, but implementations that handle local, global, and flags may have more
+ IsExplicitFile() bool
+ // GetExplicitFile returns the particular file this command is operating against. This implementation only ever has one, but implementations that handle local, global, and flags may have more
+ GetExplicitFile() string
+}
+
+type PathOptions struct {
+ // GlobalFile is the full path to the file to load as the global (final) option
+ GlobalFile string
+ // EnvVar is the env var name that points to the list of kubeconfig files to load
+ EnvVar string
+ // ExplicitFileFlag is the name of the flag to use for prompting for the kubeconfig file
+ ExplicitFileFlag string
+
+ // GlobalFileSubpath is an optional value used for displaying help
+ GlobalFileSubpath string
+
+ LoadingRules *ClientConfigLoadingRules
+}
+
+func (o *PathOptions) GetEnvVarFiles() []string {
+ if len(o.EnvVar) == 0 {
+ return []string{}
+ }
+
+ envVarValue := os.Getenv(o.EnvVar)
+ if len(envVarValue) == 0 {
+ return []string{}
+ }
+
+ fileList := filepath.SplitList(envVarValue)
+ // prevent the same path load multiple times
+ return deduplicate(fileList)
+}
+
+func (o *PathOptions) GetLoadingPrecedence() []string {
+ if envVarFiles := o.GetEnvVarFiles(); len(envVarFiles) > 0 {
+ return envVarFiles
+ }
+
+ return []string{o.GlobalFile}
+}
+
+func (o *PathOptions) GetStartingConfig() (*clientcmdapi.Config, error) {
+ // don't mutate the original
+ loadingRules := *o.LoadingRules
+ loadingRules.Precedence = o.GetLoadingPrecedence()
+
+ clientConfig := NewNonInteractiveDeferredLoadingClientConfig(&loadingRules, &ConfigOverrides{})
+ rawConfig, err := clientConfig.RawConfig()
+ if os.IsNotExist(err) {
+ return clientcmdapi.NewConfig(), nil
+ }
+ if err != nil {
+ return nil, err
+ }
+
+ return &rawConfig, nil
+}
+
+func (o *PathOptions) GetDefaultFilename() string {
+ if o.IsExplicitFile() {
+ return o.GetExplicitFile()
+ }
+
+ if envVarFiles := o.GetEnvVarFiles(); len(envVarFiles) > 0 {
+ if len(envVarFiles) == 1 {
+ return envVarFiles[0]
+ }
+
+ // if any of the envvar files already exists, return it
+ for _, envVarFile := range envVarFiles {
+ if _, err := os.Stat(envVarFile); err == nil {
+ return envVarFile
+ }
+ }
+
+ // otherwise, return the last one in the list
+ return envVarFiles[len(envVarFiles)-1]
+ }
+
+ return o.GlobalFile
+}
+
+func (o *PathOptions) IsExplicitFile() bool {
+ if len(o.LoadingRules.ExplicitPath) > 0 {
+ return true
+ }
+
+ return false
+}
+
+func (o *PathOptions) GetExplicitFile() string {
+ return o.LoadingRules.ExplicitPath
+}
+
+func NewDefaultPathOptions() *PathOptions {
+ ret := &PathOptions{
+ GlobalFile: RecommendedHomeFile,
+ EnvVar: RecommendedConfigPathEnvVar,
+ ExplicitFileFlag: RecommendedConfigPathFlag,
+
+ GlobalFileSubpath: path.Join(RecommendedHomeDir, RecommendedFileName),
+
+ LoadingRules: NewDefaultClientConfigLoadingRules(),
+ }
+ ret.LoadingRules.DoNotResolvePaths = true
+
+ return ret
+}
+
+// ModifyConfig takes a Config object, iterates through Clusters, AuthInfos, and Contexts, uses the LocationOfOrigin if specified or
+// uses the default destination file to write the results into. This results in multiple file reads, but it's very easy to follow.
+// Preferences and CurrentContext should always be set in the default destination file. Since we can't distinguish between empty and missing values
+// (no nil strings), we're forced have separate handling for them. In the kubeconfig cases, newConfig should have at most one difference,
+// that means that this code will only write into a single file. If you want to relativizePaths, you must provide a fully qualified path in any
+// modified element.
+func ModifyConfig(configAccess ConfigAccess, newConfig clientcmdapi.Config, relativizePaths bool) error {
+ possibleSources := configAccess.GetLoadingPrecedence()
+ // sort the possible kubeconfig files so we always "lock" in the same order
+ // to avoid deadlock (note: this can fail w/ symlinks, but... come on).
+ sort.Strings(possibleSources)
+ for _, filename := range possibleSources {
+ if err := lockFile(filename); err != nil {
+ return err
+ }
+ defer unlockFile(filename)
+ }
+
+ startingConfig, err := configAccess.GetStartingConfig()
+ if err != nil {
+ return err
+ }
+
+ // We need to find all differences, locate their original files, read a partial config to modify only that stanza and write out the file.
+ // Special case the test for current context and preferences since those always write to the default file.
+ if reflect.DeepEqual(*startingConfig, newConfig) {
+ // nothing to do
+ return nil
+ }
+
+ if startingConfig.CurrentContext != newConfig.CurrentContext {
+ if err := writeCurrentContext(configAccess, newConfig.CurrentContext); err != nil {
+ return err
+ }
+ }
+
+ if !reflect.DeepEqual(startingConfig.Preferences, newConfig.Preferences) {
+ if err := writePreferences(configAccess, newConfig.Preferences); err != nil {
+ return err
+ }
+ }
+
+ // Search every cluster, authInfo, and context. First from new to old for differences, then from old to new for deletions
+ for key, cluster := range newConfig.Clusters {
+ startingCluster, exists := startingConfig.Clusters[key]
+ if !reflect.DeepEqual(cluster, startingCluster) || !exists {
+ destinationFile := cluster.LocationOfOrigin
+ if len(destinationFile) == 0 {
+ destinationFile = configAccess.GetDefaultFilename()
+ }
+
+ configToWrite, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ t := *cluster
+
+ configToWrite.Clusters[key] = &t
+ configToWrite.Clusters[key].LocationOfOrigin = destinationFile
+ if relativizePaths {
+ if err := RelativizeClusterLocalPaths(configToWrite.Clusters[key]); err != nil {
+ return err
+ }
+ }
+
+ if err := WriteToFile(*configToWrite, destinationFile); err != nil {
+ return err
+ }
+ }
+ }
+
+ for key, context := range newConfig.Contexts {
+ startingContext, exists := startingConfig.Contexts[key]
+ if !reflect.DeepEqual(context, startingContext) || !exists {
+ destinationFile := context.LocationOfOrigin
+ if len(destinationFile) == 0 {
+ destinationFile = configAccess.GetDefaultFilename()
+ }
+
+ configToWrite, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ configToWrite.Contexts[key] = context
+
+ if err := WriteToFile(*configToWrite, destinationFile); err != nil {
+ return err
+ }
+ }
+ }
+
+ for key, authInfo := range newConfig.AuthInfos {
+ startingAuthInfo, exists := startingConfig.AuthInfos[key]
+ if !reflect.DeepEqual(authInfo, startingAuthInfo) || !exists {
+ destinationFile := authInfo.LocationOfOrigin
+ if len(destinationFile) == 0 {
+ destinationFile = configAccess.GetDefaultFilename()
+ }
+
+ configToWrite, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ t := *authInfo
+ configToWrite.AuthInfos[key] = &t
+ configToWrite.AuthInfos[key].LocationOfOrigin = destinationFile
+ if relativizePaths {
+ if err := RelativizeAuthInfoLocalPaths(configToWrite.AuthInfos[key]); err != nil {
+ return err
+ }
+ }
+
+ if err := WriteToFile(*configToWrite, destinationFile); err != nil {
+ return err
+ }
+ }
+ }
+
+ for key, cluster := range startingConfig.Clusters {
+ if _, exists := newConfig.Clusters[key]; !exists {
+ destinationFile := cluster.LocationOfOrigin
+ if len(destinationFile) == 0 {
+ destinationFile = configAccess.GetDefaultFilename()
+ }
+
+ configToWrite, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ delete(configToWrite.Clusters, key)
+
+ if err := WriteToFile(*configToWrite, destinationFile); err != nil {
+ return err
+ }
+ }
+ }
+
+ for key, context := range startingConfig.Contexts {
+ if _, exists := newConfig.Contexts[key]; !exists {
+ destinationFile := context.LocationOfOrigin
+ if len(destinationFile) == 0 {
+ destinationFile = configAccess.GetDefaultFilename()
+ }
+
+ configToWrite, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ delete(configToWrite.Contexts, key)
+
+ if err := WriteToFile(*configToWrite, destinationFile); err != nil {
+ return err
+ }
+ }
+ }
+
+ for key, authInfo := range startingConfig.AuthInfos {
+ if _, exists := newConfig.AuthInfos[key]; !exists {
+ destinationFile := authInfo.LocationOfOrigin
+ if len(destinationFile) == 0 {
+ destinationFile = configAccess.GetDefaultFilename()
+ }
+
+ configToWrite, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ delete(configToWrite.AuthInfos, key)
+
+ if err := WriteToFile(*configToWrite, destinationFile); err != nil {
+ return err
+ }
+ }
+ }
+
+ return nil
+}
+
+func PersisterForUser(configAccess ConfigAccess, user string) restclient.AuthProviderConfigPersister {
+ return &persister{configAccess, user}
+}
+
+type persister struct {
+ configAccess ConfigAccess
+ user string
+}
+
+func (p *persister) Persist(config map[string]string) error {
+ newConfig, err := p.configAccess.GetStartingConfig()
+ if err != nil {
+ return err
+ }
+ authInfo, ok := newConfig.AuthInfos[p.user]
+ if ok && authInfo.AuthProvider != nil {
+ authInfo.AuthProvider.Config = config
+ ModifyConfig(p.configAccess, *newConfig, false)
+ }
+ return nil
+}
+
+// writeCurrentContext takes three possible paths.
+// If newCurrentContext is the same as the startingConfig's current context, then we exit.
+// If newCurrentContext has a value, then that value is written into the default destination file.
+// If newCurrentContext is empty, then we find the config file that is setting the CurrentContext and clear the value from that file
+func writeCurrentContext(configAccess ConfigAccess, newCurrentContext string) error {
+ if startingConfig, err := configAccess.GetStartingConfig(); err != nil {
+ return err
+ } else if startingConfig.CurrentContext == newCurrentContext {
+ return nil
+ }
+
+ if configAccess.IsExplicitFile() {
+ file := configAccess.GetExplicitFile()
+ currConfig, err := getConfigFromFile(file)
+ if err != nil {
+ return err
+ }
+ currConfig.CurrentContext = newCurrentContext
+ if err := WriteToFile(*currConfig, file); err != nil {
+ return err
+ }
+
+ return nil
+ }
+
+ if len(newCurrentContext) > 0 {
+ destinationFile := configAccess.GetDefaultFilename()
+ config, err := getConfigFromFile(destinationFile)
+ if err != nil {
+ return err
+ }
+ config.CurrentContext = newCurrentContext
+
+ if err := WriteToFile(*config, destinationFile); err != nil {
+ return err
+ }
+
+ return nil
+ }
+
+ // we're supposed to be clearing the current context. We need to find the first spot in the chain that is setting it and clear it
+ for _, file := range configAccess.GetLoadingPrecedence() {
+ if _, err := os.Stat(file); err == nil {
+ currConfig, err := getConfigFromFile(file)
+ if err != nil {
+ return err
+ }
+
+ if len(currConfig.CurrentContext) > 0 {
+ currConfig.CurrentContext = newCurrentContext
+ if err := WriteToFile(*currConfig, file); err != nil {
+ return err
+ }
+
+ return nil
+ }
+ }
+ }
+
+ return errors.New("no config found to write context")
+}
+
+func writePreferences(configAccess ConfigAccess, newPrefs clientcmdapi.Preferences) error {
+ if startingConfig, err := configAccess.GetStartingConfig(); err != nil {
+ return err
+ } else if reflect.DeepEqual(startingConfig.Preferences, newPrefs) {
+ return nil
+ }
+
+ if configAccess.IsExplicitFile() {
+ file := configAccess.GetExplicitFile()
+ currConfig, err := getConfigFromFile(file)
+ if err != nil {
+ return err
+ }
+ currConfig.Preferences = newPrefs
+ if err := WriteToFile(*currConfig, file); err != nil {
+ return err
+ }
+
+ return nil
+ }
+
+ for _, file := range configAccess.GetLoadingPrecedence() {
+ currConfig, err := getConfigFromFile(file)
+ if err != nil {
+ return err
+ }
+
+ if !reflect.DeepEqual(currConfig.Preferences, newPrefs) {
+ currConfig.Preferences = newPrefs
+ if err := WriteToFile(*currConfig, file); err != nil {
+ return err
+ }
+
+ return nil
+ }
+ }
+
+ return errors.New("no config found to write preferences")
+}
+
+// getConfigFromFile tries to read a kubeconfig file and if it can't, returns an error. One exception, missing files result in empty configs, not an error.
+func getConfigFromFile(filename string) (*clientcmdapi.Config, error) {
+ config, err := LoadFromFile(filename)
+ if err != nil && !os.IsNotExist(err) {
+ return nil, err
+ }
+ if config == nil {
+ config = clientcmdapi.NewConfig()
+ }
+ return config, nil
+}
+
+// GetConfigFromFileOrDie tries to read a kubeconfig file and if it can't, it calls exit. One exception, missing files result in empty configs, not an exit
+func GetConfigFromFileOrDie(filename string) *clientcmdapi.Config {
+ config, err := getConfigFromFile(filename)
+ if err != nil {
+ glog.FatalDepth(1, err)
+ }
+
+ return config
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/doc.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/doc.go
new file mode 100644
index 0000000..424311e
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/doc.go
@@ -0,0 +1,37 @@
+/*
+Copyright 2014 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 clientcmd provides one stop shopping for building a working client from a fixed config,
+from a .kubeconfig file, from command line flags, or from any merged combination.
+
+Sample usage from merged .kubeconfig files (local directory, home directory)
+
+ loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
+ // if you want to change the loading rules (which files in which order), you can do so here
+
+ configOverrides := &clientcmd.ConfigOverrides{}
+ // if you want to change override values or bind them to flags, there are methods to help you
+
+ kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, configOverrides)
+ config, err := kubeConfig.ClientConfig()
+ if err != nil {
+ // Do something
+ }
+ client, err := metav1.New(config)
+ // ...
+*/
+package clientcmd // import "k8s.io/client-go/tools/clientcmd"
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/flag.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/flag.go
new file mode 100644
index 0000000..8d60d20
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/flag.go
@@ -0,0 +1,49 @@
+/*
+Copyright 2017 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 clientcmd
+
+// transformingStringValue implements pflag.Value to store string values,
+// allowing transforming them while being set
+type transformingStringValue struct {
+ target *string
+ transformer func(string) (string, error)
+}
+
+func newTransformingStringValue(val string, target *string, transformer func(string) (string, error)) *transformingStringValue {
+ *target = val
+ return &transformingStringValue{
+ target: target,
+ transformer: transformer,
+ }
+}
+
+func (t *transformingStringValue) Set(val string) error {
+ val, err := t.transformer(val)
+ if err != nil {
+ return err
+ }
+ *t.target = val
+ return nil
+}
+
+func (t *transformingStringValue) Type() string {
+ return "string"
+}
+
+func (t *transformingStringValue) String() string {
+ return string(*t.target)
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/helpers.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/helpers.go
new file mode 100644
index 0000000..b609d1a
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/helpers.go
@@ -0,0 +1,35 @@
+/*
+Copyright 2016 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 clientcmd
+
+import (
+ "fmt"
+ "strconv"
+ "time"
+)
+
+// ParseTimeout returns a parsed duration from a string
+// A duration string value must be a positive integer, optionally followed by a corresponding time unit (s|m|h).
+func ParseTimeout(duration string) (time.Duration, error) {
+ if i, err := strconv.ParseInt(duration, 10, 64); err == nil && i >= 0 {
+ return (time.Duration(i) * time.Second), nil
+ }
+ if requestTimeout, err := time.ParseDuration(duration); err == nil {
+ return requestTimeout, nil
+ }
+ return 0, fmt.Errorf("Invalid timeout value. Timeout must be a single integer in seconds, or an integer followed by a corresponding time unit (e.g. 1s | 2m | 3h)")
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/loader.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/loader.go
new file mode 100644
index 0000000..3442475
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/loader.go
@@ -0,0 +1,633 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "fmt"
+ "io"
+ "io/ioutil"
+ "os"
+ "path"
+ "path/filepath"
+ "reflect"
+ goruntime "runtime"
+ "strings"
+
+ "github.com/golang/glog"
+ "github.com/imdario/mergo"
+
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ utilerrors "k8s.io/apimachinery/pkg/util/errors"
+ restclient "k8s.io/client-go/rest"
+ clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+ clientcmdlatest "k8s.io/client-go/tools/clientcmd/api/latest"
+ "k8s.io/client-go/util/homedir"
+)
+
+const (
+ RecommendedConfigPathFlag = "kubeconfig"
+ RecommendedConfigPathEnvVar = "KUBECONFIG"
+ RecommendedHomeDir = ".kube"
+ RecommendedFileName = "config"
+ RecommendedSchemaName = "schema"
+)
+
+var (
+ RecommendedConfigDir = path.Join(homedir.HomeDir(), RecommendedHomeDir)
+ RecommendedHomeFile = path.Join(RecommendedConfigDir, RecommendedFileName)
+ RecommendedSchemaFile = path.Join(RecommendedConfigDir, RecommendedSchemaName)
+)
+
+// currentMigrationRules returns a map that holds the history of recommended home directories used in previous versions.
+// Any future changes to RecommendedHomeFile and related are expected to add a migration rule here, in order to make
+// sure existing config files are migrated to their new locations properly.
+func currentMigrationRules() map[string]string {
+ oldRecommendedHomeFile := path.Join(os.Getenv("HOME"), "/.kube/.kubeconfig")
+ oldRecommendedWindowsHomeFile := path.Join(os.Getenv("HOME"), RecommendedHomeDir, RecommendedFileName)
+
+ migrationRules := map[string]string{}
+ migrationRules[RecommendedHomeFile] = oldRecommendedHomeFile
+ if goruntime.GOOS == "windows" {
+ migrationRules[RecommendedHomeFile] = oldRecommendedWindowsHomeFile
+ }
+ return migrationRules
+}
+
+type ClientConfigLoader interface {
+ ConfigAccess
+ // IsDefaultConfig returns true if the returned config matches the defaults.
+ IsDefaultConfig(*restclient.Config) bool
+ // Load returns the latest config
+ Load() (*clientcmdapi.Config, error)
+}
+
+type KubeconfigGetter func() (*clientcmdapi.Config, error)
+
+type ClientConfigGetter struct {
+ kubeconfigGetter KubeconfigGetter
+}
+
+// ClientConfigGetter implements the ClientConfigLoader interface.
+var _ ClientConfigLoader = &ClientConfigGetter{}
+
+func (g *ClientConfigGetter) Load() (*clientcmdapi.Config, error) {
+ return g.kubeconfigGetter()
+}
+
+func (g *ClientConfigGetter) GetLoadingPrecedence() []string {
+ return nil
+}
+func (g *ClientConfigGetter) GetStartingConfig() (*clientcmdapi.Config, error) {
+ return g.kubeconfigGetter()
+}
+func (g *ClientConfigGetter) GetDefaultFilename() string {
+ return ""
+}
+func (g *ClientConfigGetter) IsExplicitFile() bool {
+ return false
+}
+func (g *ClientConfigGetter) GetExplicitFile() string {
+ return ""
+}
+func (g *ClientConfigGetter) IsDefaultConfig(config *restclient.Config) bool {
+ return false
+}
+
+// ClientConfigLoadingRules is an ExplicitPath and string slice of specific locations that are used for merging together a Config
+// Callers can put the chain together however they want, but we'd recommend:
+// EnvVarPathFiles if set (a list of files if set) OR the HomeDirectoryPath
+// ExplicitPath is special, because if a user specifically requests a certain file be used and error is reported if this file is not present
+type ClientConfigLoadingRules struct {
+ ExplicitPath string
+ Precedence []string
+
+ // MigrationRules is a map of destination files to source files. If a destination file is not present, then the source file is checked.
+ // If the source file is present, then it is copied to the destination file BEFORE any further loading happens.
+ MigrationRules map[string]string
+
+ // DoNotResolvePaths indicates whether or not to resolve paths with respect to the originating files. This is phrased as a negative so
+ // that a default object that doesn't set this will usually get the behavior it wants.
+ DoNotResolvePaths bool
+
+ // DefaultClientConfig is an optional field indicating what rules to use to calculate a default configuration.
+ // This should match the overrides passed in to ClientConfig loader.
+ DefaultClientConfig ClientConfig
+}
+
+// ClientConfigLoadingRules implements the ClientConfigLoader interface.
+var _ ClientConfigLoader = &ClientConfigLoadingRules{}
+
+// NewDefaultClientConfigLoadingRules returns a ClientConfigLoadingRules object with default fields filled in. You are not required to
+// use this constructor
+func NewDefaultClientConfigLoadingRules() *ClientConfigLoadingRules {
+ chain := []string{}
+
+ envVarFiles := os.Getenv(RecommendedConfigPathEnvVar)
+ if len(envVarFiles) != 0 {
+ fileList := filepath.SplitList(envVarFiles)
+ // prevent the same path load multiple times
+ chain = append(chain, deduplicate(fileList)...)
+
+ } else {
+ chain = append(chain, RecommendedHomeFile)
+ }
+
+ return &ClientConfigLoadingRules{
+ Precedence: chain,
+ MigrationRules: currentMigrationRules(),
+ }
+}
+
+// Load starts by running the MigrationRules and then
+// takes the loading rules and returns a Config object based on following rules.
+// if the ExplicitPath, return the unmerged explicit file
+// Otherwise, return a merged config based on the Precedence slice
+// A missing ExplicitPath file produces an error. Empty filenames or other missing files are ignored.
+// Read errors or files with non-deserializable content produce errors.
+// The first file to set a particular map key wins and map key's value is never changed.
+// BUT, if you set a struct value that is NOT contained inside of map, the value WILL be changed.
+// This results in some odd looking logic to merge in one direction, merge in the other, and then merge the two.
+// It also means that if two files specify a "red-user", only values from the first file's red-user are used. Even
+// non-conflicting entries from the second file's "red-user" are discarded.
+// Relative paths inside of the .kubeconfig files are resolved against the .kubeconfig file's parent folder
+// and only absolute file paths are returned.
+func (rules *ClientConfigLoadingRules) Load() (*clientcmdapi.Config, error) {
+ if err := rules.Migrate(); err != nil {
+ return nil, err
+ }
+
+ errlist := []error{}
+
+ kubeConfigFiles := []string{}
+
+ // Make sure a file we were explicitly told to use exists
+ if len(rules.ExplicitPath) > 0 {
+ if _, err := os.Stat(rules.ExplicitPath); os.IsNotExist(err) {
+ return nil, err
+ }
+ kubeConfigFiles = append(kubeConfigFiles, rules.ExplicitPath)
+
+ } else {
+ kubeConfigFiles = append(kubeConfigFiles, rules.Precedence...)
+ }
+
+ kubeconfigs := []*clientcmdapi.Config{}
+ // read and cache the config files so that we only look at them once
+ for _, filename := range kubeConfigFiles {
+ if len(filename) == 0 {
+ // no work to do
+ continue
+ }
+
+ config, err := LoadFromFile(filename)
+ if os.IsNotExist(err) {
+ // skip missing files
+ continue
+ }
+ if err != nil {
+ errlist = append(errlist, fmt.Errorf("Error loading config file \"%s\": %v", filename, err))
+ continue
+ }
+
+ kubeconfigs = append(kubeconfigs, config)
+ }
+
+ // first merge all of our maps
+ mapConfig := clientcmdapi.NewConfig()
+
+ for _, kubeconfig := range kubeconfigs {
+ mergo.Merge(mapConfig, kubeconfig)
+ }
+
+ // merge all of the struct values in the reverse order so that priority is given correctly
+ // errors are not added to the list the second time
+ nonMapConfig := clientcmdapi.NewConfig()
+ for i := len(kubeconfigs) - 1; i >= 0; i-- {
+ kubeconfig := kubeconfigs[i]
+ mergo.Merge(nonMapConfig, kubeconfig)
+ }
+
+ // since values are overwritten, but maps values are not, we can merge the non-map config on top of the map config and
+ // get the values we expect.
+ config := clientcmdapi.NewConfig()
+ mergo.Merge(config, mapConfig)
+ mergo.Merge(config, nonMapConfig)
+
+ if rules.ResolvePaths() {
+ if err := ResolveLocalPaths(config); err != nil {
+ errlist = append(errlist, err)
+ }
+ }
+ return config, utilerrors.NewAggregate(errlist)
+}
+
+// Migrate uses the MigrationRules map. If a destination file is not present, then the source file is checked.
+// If the source file is present, then it is copied to the destination file BEFORE any further loading happens.
+func (rules *ClientConfigLoadingRules) Migrate() error {
+ if rules.MigrationRules == nil {
+ return nil
+ }
+
+ for destination, source := range rules.MigrationRules {
+ if _, err := os.Stat(destination); err == nil {
+ // if the destination already exists, do nothing
+ continue
+ } else if os.IsPermission(err) {
+ // if we can't access the file, skip it
+ continue
+ } else if !os.IsNotExist(err) {
+ // if we had an error other than non-existence, fail
+ return err
+ }
+
+ if sourceInfo, err := os.Stat(source); err != nil {
+ if os.IsNotExist(err) || os.IsPermission(err) {
+ // if the source file doesn't exist or we can't access it, there's no work to do.
+ continue
+ }
+
+ // if we had an error other than non-existence, fail
+ return err
+ } else if sourceInfo.IsDir() {
+ return fmt.Errorf("cannot migrate %v to %v because it is a directory", source, destination)
+ }
+
+ in, err := os.Open(source)
+ if err != nil {
+ return err
+ }
+ defer in.Close()
+ out, err := os.Create(destination)
+ if err != nil {
+ return err
+ }
+ defer out.Close()
+
+ if _, err = io.Copy(out, in); err != nil {
+ return err
+ }
+ }
+
+ return nil
+}
+
+// GetLoadingPrecedence implements ConfigAccess
+func (rules *ClientConfigLoadingRules) GetLoadingPrecedence() []string {
+ return rules.Precedence
+}
+
+// GetStartingConfig implements ConfigAccess
+func (rules *ClientConfigLoadingRules) GetStartingConfig() (*clientcmdapi.Config, error) {
+ clientConfig := NewNonInteractiveDeferredLoadingClientConfig(rules, &ConfigOverrides{})
+ rawConfig, err := clientConfig.RawConfig()
+ if os.IsNotExist(err) {
+ return clientcmdapi.NewConfig(), nil
+ }
+ if err != nil {
+ return nil, err
+ }
+
+ return &rawConfig, nil
+}
+
+// GetDefaultFilename implements ConfigAccess
+func (rules *ClientConfigLoadingRules) GetDefaultFilename() string {
+ // Explicit file if we have one.
+ if rules.IsExplicitFile() {
+ return rules.GetExplicitFile()
+ }
+ // Otherwise, first existing file from precedence.
+ for _, filename := range rules.GetLoadingPrecedence() {
+ if _, err := os.Stat(filename); err == nil {
+ return filename
+ }
+ }
+ // If none exists, use the first from precedence.
+ if len(rules.Precedence) > 0 {
+ return rules.Precedence[0]
+ }
+ return ""
+}
+
+// IsExplicitFile implements ConfigAccess
+func (rules *ClientConfigLoadingRules) IsExplicitFile() bool {
+ return len(rules.ExplicitPath) > 0
+}
+
+// GetExplicitFile implements ConfigAccess
+func (rules *ClientConfigLoadingRules) GetExplicitFile() string {
+ return rules.ExplicitPath
+}
+
+// IsDefaultConfig returns true if the provided configuration matches the default
+func (rules *ClientConfigLoadingRules) IsDefaultConfig(config *restclient.Config) bool {
+ if rules.DefaultClientConfig == nil {
+ return false
+ }
+ defaultConfig, err := rules.DefaultClientConfig.ClientConfig()
+ if err != nil {
+ return false
+ }
+ return reflect.DeepEqual(config, defaultConfig)
+}
+
+// LoadFromFile takes a filename and deserializes the contents into Config object
+func LoadFromFile(filename string) (*clientcmdapi.Config, error) {
+ kubeconfigBytes, err := ioutil.ReadFile(filename)
+ if err != nil {
+ return nil, err
+ }
+ config, err := Load(kubeconfigBytes)
+ if err != nil {
+ return nil, err
+ }
+ glog.V(6).Infoln("Config loaded from file", filename)
+
+ // set LocationOfOrigin on every Cluster, User, and Context
+ for key, obj := range config.AuthInfos {
+ obj.LocationOfOrigin = filename
+ config.AuthInfos[key] = obj
+ }
+ for key, obj := range config.Clusters {
+ obj.LocationOfOrigin = filename
+ config.Clusters[key] = obj
+ }
+ for key, obj := range config.Contexts {
+ obj.LocationOfOrigin = filename
+ config.Contexts[key] = obj
+ }
+
+ if config.AuthInfos == nil {
+ config.AuthInfos = map[string]*clientcmdapi.AuthInfo{}
+ }
+ if config.Clusters == nil {
+ config.Clusters = map[string]*clientcmdapi.Cluster{}
+ }
+ if config.Contexts == nil {
+ config.Contexts = map[string]*clientcmdapi.Context{}
+ }
+
+ return config, nil
+}
+
+// Load takes a byte slice and deserializes the contents into Config object.
+// Encapsulates deserialization without assuming the source is a file.
+func Load(data []byte) (*clientcmdapi.Config, error) {
+ config := clientcmdapi.NewConfig()
+ // if there's no data in a file, return the default object instead of failing (DecodeInto reject empty input)
+ if len(data) == 0 {
+ return config, nil
+ }
+ decoded, _, err := clientcmdlatest.Codec.Decode(data, &schema.GroupVersionKind{Version: clientcmdlatest.Version, Kind: "Config"}, config)
+ if err != nil {
+ return nil, err
+ }
+ return decoded.(*clientcmdapi.Config), nil
+}
+
+// WriteToFile serializes the config to yaml and writes it out to a file. If not present, it creates the file with the mode 0600. If it is present
+// it stomps the contents
+func WriteToFile(config clientcmdapi.Config, filename string) error {
+ content, err := Write(config)
+ if err != nil {
+ return err
+ }
+ dir := filepath.Dir(filename)
+ if _, err := os.Stat(dir); os.IsNotExist(err) {
+ if err = os.MkdirAll(dir, 0755); err != nil {
+ return err
+ }
+ }
+
+ if err := ioutil.WriteFile(filename, content, 0600); err != nil {
+ return err
+ }
+ return nil
+}
+
+func lockFile(filename string) error {
+ // TODO: find a way to do this with actual file locks. Will
+ // probably need separate solution for windows and Linux.
+
+ // Make sure the dir exists before we try to create a lock file.
+ dir := filepath.Dir(filename)
+ if _, err := os.Stat(dir); os.IsNotExist(err) {
+ if err = os.MkdirAll(dir, 0755); err != nil {
+ return err
+ }
+ }
+ f, err := os.OpenFile(lockName(filename), os.O_CREATE|os.O_EXCL, 0)
+ if err != nil {
+ return err
+ }
+ f.Close()
+ return nil
+}
+
+func unlockFile(filename string) error {
+ return os.Remove(lockName(filename))
+}
+
+func lockName(filename string) string {
+ return filename + ".lock"
+}
+
+// Write serializes the config to yaml.
+// Encapsulates serialization without assuming the destination is a file.
+func Write(config clientcmdapi.Config) ([]byte, error) {
+ return runtime.Encode(clientcmdlatest.Codec, &config)
+}
+
+func (rules ClientConfigLoadingRules) ResolvePaths() bool {
+ return !rules.DoNotResolvePaths
+}
+
+// ResolveLocalPaths resolves all relative paths in the config object with respect to the stanza's LocationOfOrigin
+// this cannot be done directly inside of LoadFromFile because doing so there would make it impossible to load a file without
+// modification of its contents.
+func ResolveLocalPaths(config *clientcmdapi.Config) error {
+ for _, cluster := range config.Clusters {
+ if len(cluster.LocationOfOrigin) == 0 {
+ continue
+ }
+ base, err := filepath.Abs(filepath.Dir(cluster.LocationOfOrigin))
+ if err != nil {
+ return fmt.Errorf("Could not determine the absolute path of config file %s: %v", cluster.LocationOfOrigin, err)
+ }
+
+ if err := ResolvePaths(GetClusterFileReferences(cluster), base); err != nil {
+ return err
+ }
+ }
+ for _, authInfo := range config.AuthInfos {
+ if len(authInfo.LocationOfOrigin) == 0 {
+ continue
+ }
+ base, err := filepath.Abs(filepath.Dir(authInfo.LocationOfOrigin))
+ if err != nil {
+ return fmt.Errorf("Could not determine the absolute path of config file %s: %v", authInfo.LocationOfOrigin, err)
+ }
+
+ if err := ResolvePaths(GetAuthInfoFileReferences(authInfo), base); err != nil {
+ return err
+ }
+ }
+
+ return nil
+}
+
+// RelativizeClusterLocalPaths first absolutizes the paths by calling ResolveLocalPaths. This assumes that any NEW path is already
+// absolute, but any existing path will be resolved relative to LocationOfOrigin
+func RelativizeClusterLocalPaths(cluster *clientcmdapi.Cluster) error {
+ if len(cluster.LocationOfOrigin) == 0 {
+ return fmt.Errorf("no location of origin for %s", cluster.Server)
+ }
+ base, err := filepath.Abs(filepath.Dir(cluster.LocationOfOrigin))
+ if err != nil {
+ return fmt.Errorf("could not determine the absolute path of config file %s: %v", cluster.LocationOfOrigin, err)
+ }
+
+ if err := ResolvePaths(GetClusterFileReferences(cluster), base); err != nil {
+ return err
+ }
+ if err := RelativizePathWithNoBacksteps(GetClusterFileReferences(cluster), base); err != nil {
+ return err
+ }
+
+ return nil
+}
+
+// RelativizeAuthInfoLocalPaths first absolutizes the paths by calling ResolveLocalPaths. This assumes that any NEW path is already
+// absolute, but any existing path will be resolved relative to LocationOfOrigin
+func RelativizeAuthInfoLocalPaths(authInfo *clientcmdapi.AuthInfo) error {
+ if len(authInfo.LocationOfOrigin) == 0 {
+ return fmt.Errorf("no location of origin for %v", authInfo)
+ }
+ base, err := filepath.Abs(filepath.Dir(authInfo.LocationOfOrigin))
+ if err != nil {
+ return fmt.Errorf("could not determine the absolute path of config file %s: %v", authInfo.LocationOfOrigin, err)
+ }
+
+ if err := ResolvePaths(GetAuthInfoFileReferences(authInfo), base); err != nil {
+ return err
+ }
+ if err := RelativizePathWithNoBacksteps(GetAuthInfoFileReferences(authInfo), base); err != nil {
+ return err
+ }
+
+ return nil
+}
+
+func RelativizeConfigPaths(config *clientcmdapi.Config, base string) error {
+ return RelativizePathWithNoBacksteps(GetConfigFileReferences(config), base)
+}
+
+func ResolveConfigPaths(config *clientcmdapi.Config, base string) error {
+ return ResolvePaths(GetConfigFileReferences(config), base)
+}
+
+func GetConfigFileReferences(config *clientcmdapi.Config) []*string {
+ refs := []*string{}
+
+ for _, cluster := range config.Clusters {
+ refs = append(refs, GetClusterFileReferences(cluster)...)
+ }
+ for _, authInfo := range config.AuthInfos {
+ refs = append(refs, GetAuthInfoFileReferences(authInfo)...)
+ }
+
+ return refs
+}
+
+func GetClusterFileReferences(cluster *clientcmdapi.Cluster) []*string {
+ return []*string{&cluster.CertificateAuthority}
+}
+
+func GetAuthInfoFileReferences(authInfo *clientcmdapi.AuthInfo) []*string {
+ s := []*string{&authInfo.ClientCertificate, &authInfo.ClientKey, &authInfo.TokenFile}
+ // Only resolve exec command if it isn't PATH based.
+ if authInfo.Exec != nil && strings.ContainsRune(authInfo.Exec.Command, filepath.Separator) {
+ s = append(s, &authInfo.Exec.Command)
+ }
+ return s
+}
+
+// ResolvePaths updates the given refs to be absolute paths, relative to the given base directory
+func ResolvePaths(refs []*string, base string) error {
+ for _, ref := range refs {
+ // Don't resolve empty paths
+ if len(*ref) > 0 {
+ // Don't resolve absolute paths
+ if !filepath.IsAbs(*ref) {
+ *ref = filepath.Join(base, *ref)
+ }
+ }
+ }
+ return nil
+}
+
+// RelativizePathWithNoBacksteps updates the given refs to be relative paths, relative to the given base directory as long as they do not require backsteps.
+// Any path requiring a backstep is left as-is as long it is absolute. Any non-absolute path that can't be relativized produces an error
+func RelativizePathWithNoBacksteps(refs []*string, base string) error {
+ for _, ref := range refs {
+ // Don't relativize empty paths
+ if len(*ref) > 0 {
+ rel, err := MakeRelative(*ref, base)
+ if err != nil {
+ return err
+ }
+
+ // if we have a backstep, don't mess with the path
+ if strings.HasPrefix(rel, "../") {
+ if filepath.IsAbs(*ref) {
+ continue
+ }
+
+ return fmt.Errorf("%v requires backsteps and is not absolute", *ref)
+ }
+
+ *ref = rel
+ }
+ }
+ return nil
+}
+
+func MakeRelative(path, base string) (string, error) {
+ if len(path) > 0 {
+ rel, err := filepath.Rel(base, path)
+ if err != nil {
+ return path, err
+ }
+ return rel, nil
+ }
+ return path, nil
+}
+
+// deduplicate removes any duplicated values and returns a new slice, keeping the order unchanged
+func deduplicate(s []string) []string {
+ encountered := map[string]bool{}
+ ret := make([]string, 0)
+ for i := range s {
+ if encountered[s[i]] {
+ continue
+ }
+ encountered[s[i]] = true
+ ret = append(ret, s[i])
+ }
+ return ret
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/merged_client_builder.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/merged_client_builder.go
new file mode 100644
index 0000000..0503813
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/merged_client_builder.go
@@ -0,0 +1,168 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "io"
+ "sync"
+
+ "github.com/golang/glog"
+
+ restclient "k8s.io/client-go/rest"
+ clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+)
+
+// DeferredLoadingClientConfig is a ClientConfig interface that is backed by a client config loader.
+// It is used in cases where the loading rules may change after you've instantiated them and you want to be sure that
+// the most recent rules are used. This is useful in cases where you bind flags to loading rule parameters before
+// the parse happens and you want your calling code to be ignorant of how the values are being mutated to avoid
+// passing extraneous information down a call stack
+type DeferredLoadingClientConfig struct {
+ loader ClientConfigLoader
+ overrides *ConfigOverrides
+ fallbackReader io.Reader
+
+ clientConfig ClientConfig
+ loadingLock sync.Mutex
+
+ // provided for testing
+ icc InClusterConfig
+}
+
+// InClusterConfig abstracts details of whether the client is running in a cluster for testing.
+type InClusterConfig interface {
+ ClientConfig
+ Possible() bool
+}
+
+// NewNonInteractiveDeferredLoadingClientConfig creates a ConfigClientClientConfig using the passed context name
+func NewNonInteractiveDeferredLoadingClientConfig(loader ClientConfigLoader, overrides *ConfigOverrides) ClientConfig {
+ return &DeferredLoadingClientConfig{loader: loader, overrides: overrides, icc: &inClusterClientConfig{overrides: overrides}}
+}
+
+// NewInteractiveDeferredLoadingClientConfig creates a ConfigClientClientConfig using the passed context name and the fallback auth reader
+func NewInteractiveDeferredLoadingClientConfig(loader ClientConfigLoader, overrides *ConfigOverrides, fallbackReader io.Reader) ClientConfig {
+ return &DeferredLoadingClientConfig{loader: loader, overrides: overrides, icc: &inClusterClientConfig{overrides: overrides}, fallbackReader: fallbackReader}
+}
+
+func (config *DeferredLoadingClientConfig) createClientConfig() (ClientConfig, error) {
+ if config.clientConfig == nil {
+ config.loadingLock.Lock()
+ defer config.loadingLock.Unlock()
+
+ if config.clientConfig == nil {
+ mergedConfig, err := config.loader.Load()
+ if err != nil {
+ return nil, err
+ }
+
+ var mergedClientConfig ClientConfig
+ if config.fallbackReader != nil {
+ mergedClientConfig = NewInteractiveClientConfig(*mergedConfig, config.overrides.CurrentContext, config.overrides, config.fallbackReader, config.loader)
+ } else {
+ mergedClientConfig = NewNonInteractiveClientConfig(*mergedConfig, config.overrides.CurrentContext, config.overrides, config.loader)
+ }
+
+ config.clientConfig = mergedClientConfig
+ }
+ }
+
+ return config.clientConfig, nil
+}
+
+func (config *DeferredLoadingClientConfig) RawConfig() (clientcmdapi.Config, error) {
+ mergedConfig, err := config.createClientConfig()
+ if err != nil {
+ return clientcmdapi.Config{}, err
+ }
+
+ return mergedConfig.RawConfig()
+}
+
+// ClientConfig implements ClientConfig
+func (config *DeferredLoadingClientConfig) ClientConfig() (*restclient.Config, error) {
+ mergedClientConfig, err := config.createClientConfig()
+ if err != nil {
+ return nil, err
+ }
+
+ // load the configuration and return on non-empty errors and if the
+ // content differs from the default config
+ mergedConfig, err := mergedClientConfig.ClientConfig()
+ switch {
+ case err != nil:
+ if !IsEmptyConfig(err) {
+ // return on any error except empty config
+ return nil, err
+ }
+ case mergedConfig != nil:
+ // the configuration is valid, but if this is equal to the defaults we should try
+ // in-cluster configuration
+ if !config.loader.IsDefaultConfig(mergedConfig) {
+ return mergedConfig, nil
+ }
+ }
+
+ // check for in-cluster configuration and use it
+ if config.icc.Possible() {
+ glog.V(4).Infof("Using in-cluster configuration")
+ return config.icc.ClientConfig()
+ }
+
+ // return the result of the merged client config
+ return mergedConfig, err
+}
+
+// Namespace implements KubeConfig
+func (config *DeferredLoadingClientConfig) Namespace() (string, bool, error) {
+ mergedKubeConfig, err := config.createClientConfig()
+ if err != nil {
+ return "", false, err
+ }
+
+ ns, overridden, err := mergedKubeConfig.Namespace()
+ // if we get an error and it is not empty config, or if the merged config defined an explicit namespace, or
+ // if in-cluster config is not possible, return immediately
+ if (err != nil && !IsEmptyConfig(err)) || overridden || !config.icc.Possible() {
+ // return on any error except empty config
+ return ns, overridden, err
+ }
+
+ if len(ns) > 0 {
+ // if we got a non-default namespace from the kubeconfig, use it
+ if ns != "default" {
+ return ns, false, nil
+ }
+
+ // if we got a default namespace, determine whether it was explicit or implicit
+ if raw, err := mergedKubeConfig.RawConfig(); err == nil {
+ if context := raw.Contexts[raw.CurrentContext]; context != nil && len(context.Namespace) > 0 {
+ return ns, false, nil
+ }
+ }
+ }
+
+ glog.V(4).Infof("Using in-cluster namespace")
+
+ // allow the namespace from the service account token directory to be used.
+ return config.icc.Namespace()
+}
+
+// ConfigAccess implements ClientConfig
+func (config *DeferredLoadingClientConfig) ConfigAccess() ConfigAccess {
+ return config.loader
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/overrides.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/overrides.go
new file mode 100644
index 0000000..bfca032
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/overrides.go
@@ -0,0 +1,247 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "strconv"
+ "strings"
+
+ "github.com/spf13/pflag"
+
+ clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+)
+
+// ConfigOverrides holds values that should override whatever information is pulled from the actual Config object. You can't
+// simply use an actual Config object, because Configs hold maps, but overrides are restricted to "at most one"
+type ConfigOverrides struct {
+ AuthInfo clientcmdapi.AuthInfo
+ // ClusterDefaults are applied before the configured cluster info is loaded.
+ ClusterDefaults clientcmdapi.Cluster
+ ClusterInfo clientcmdapi.Cluster
+ Context clientcmdapi.Context
+ CurrentContext string
+ Timeout string
+}
+
+// ConfigOverrideFlags holds the flag names to be used for binding command line flags. Notice that this structure tightly
+// corresponds to ConfigOverrides
+type ConfigOverrideFlags struct {
+ AuthOverrideFlags AuthOverrideFlags
+ ClusterOverrideFlags ClusterOverrideFlags
+ ContextOverrideFlags ContextOverrideFlags
+ CurrentContext FlagInfo
+ Timeout FlagInfo
+}
+
+// AuthOverrideFlags holds the flag names to be used for binding command line flags for AuthInfo objects
+type AuthOverrideFlags struct {
+ ClientCertificate FlagInfo
+ ClientKey FlagInfo
+ Token FlagInfo
+ Impersonate FlagInfo
+ ImpersonateGroups FlagInfo
+ Username FlagInfo
+ Password FlagInfo
+}
+
+// ContextOverrideFlags holds the flag names to be used for binding command line flags for Cluster objects
+type ContextOverrideFlags struct {
+ ClusterName FlagInfo
+ AuthInfoName FlagInfo
+ Namespace FlagInfo
+}
+
+// ClusterOverride holds the flag names to be used for binding command line flags for Cluster objects
+type ClusterOverrideFlags struct {
+ APIServer FlagInfo
+ APIVersion FlagInfo
+ CertificateAuthority FlagInfo
+ InsecureSkipTLSVerify FlagInfo
+}
+
+// FlagInfo contains information about how to register a flag. This struct is useful if you want to provide a way for an extender to
+// get back a set of recommended flag names, descriptions, and defaults, but allow for customization by an extender. This makes for
+// coherent extension, without full prescription
+type FlagInfo struct {
+ // LongName is the long string for a flag. If this is empty, then the flag will not be bound
+ LongName string
+ // ShortName is the single character for a flag. If this is empty, then there will be no short flag
+ ShortName string
+ // Default is the default value for the flag
+ Default string
+ // Description is the description for the flag
+ Description string
+}
+
+// AddSecretAnnotation add secret flag to Annotation.
+func (f FlagInfo) AddSecretAnnotation(flags *pflag.FlagSet) FlagInfo {
+ flags.SetAnnotation(f.LongName, "classified", []string{"true"})
+ return f
+}
+
+// BindStringFlag binds the flag based on the provided info. If LongName == "", nothing is registered
+func (f FlagInfo) BindStringFlag(flags *pflag.FlagSet, target *string) FlagInfo {
+ // you can't register a flag without a long name
+ if len(f.LongName) > 0 {
+ flags.StringVarP(target, f.LongName, f.ShortName, f.Default, f.Description)
+ }
+ return f
+}
+
+// BindTransformingStringFlag binds the flag based on the provided info. If LongName == "", nothing is registered
+func (f FlagInfo) BindTransformingStringFlag(flags *pflag.FlagSet, target *string, transformer func(string) (string, error)) FlagInfo {
+ // you can't register a flag without a long name
+ if len(f.LongName) > 0 {
+ flags.VarP(newTransformingStringValue(f.Default, target, transformer), f.LongName, f.ShortName, f.Description)
+ }
+ return f
+}
+
+// BindStringSliceFlag binds the flag based on the provided info. If LongName == "", nothing is registered
+func (f FlagInfo) BindStringArrayFlag(flags *pflag.FlagSet, target *[]string) FlagInfo {
+ // you can't register a flag without a long name
+ if len(f.LongName) > 0 {
+ sliceVal := []string{}
+ if len(f.Default) > 0 {
+ sliceVal = []string{f.Default}
+ }
+ flags.StringArrayVarP(target, f.LongName, f.ShortName, sliceVal, f.Description)
+ }
+ return f
+}
+
+// BindBoolFlag binds the flag based on the provided info. If LongName == "", nothing is registered
+func (f FlagInfo) BindBoolFlag(flags *pflag.FlagSet, target *bool) FlagInfo {
+ // you can't register a flag without a long name
+ if len(f.LongName) > 0 {
+ // try to parse Default as a bool. If it fails, assume false
+ boolVal, err := strconv.ParseBool(f.Default)
+ if err != nil {
+ boolVal = false
+ }
+
+ flags.BoolVarP(target, f.LongName, f.ShortName, boolVal, f.Description)
+ }
+ return f
+}
+
+const (
+ FlagClusterName = "cluster"
+ FlagAuthInfoName = "user"
+ FlagContext = "context"
+ FlagNamespace = "namespace"
+ FlagAPIServer = "server"
+ FlagInsecure = "insecure-skip-tls-verify"
+ FlagCertFile = "client-certificate"
+ FlagKeyFile = "client-key"
+ FlagCAFile = "certificate-authority"
+ FlagEmbedCerts = "embed-certs"
+ FlagBearerToken = "token"
+ FlagImpersonate = "as"
+ FlagImpersonateGroup = "as-group"
+ FlagUsername = "username"
+ FlagPassword = "password"
+ FlagTimeout = "request-timeout"
+)
+
+// RecommendedConfigOverrideFlags is a convenience method to return recommended flag names prefixed with a string of your choosing
+func RecommendedConfigOverrideFlags(prefix string) ConfigOverrideFlags {
+ return ConfigOverrideFlags{
+ AuthOverrideFlags: RecommendedAuthOverrideFlags(prefix),
+ ClusterOverrideFlags: RecommendedClusterOverrideFlags(prefix),
+ ContextOverrideFlags: RecommendedContextOverrideFlags(prefix),
+
+ CurrentContext: FlagInfo{prefix + FlagContext, "", "", "The name of the kubeconfig context to use"},
+ Timeout: FlagInfo{prefix + FlagTimeout, "", "0", "The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests."},
+ }
+}
+
+// RecommendedAuthOverrideFlags is a convenience method to return recommended flag names prefixed with a string of your choosing
+func RecommendedAuthOverrideFlags(prefix string) AuthOverrideFlags {
+ return AuthOverrideFlags{
+ ClientCertificate: FlagInfo{prefix + FlagCertFile, "", "", "Path to a client certificate file for TLS"},
+ ClientKey: FlagInfo{prefix + FlagKeyFile, "", "", "Path to a client key file for TLS"},
+ Token: FlagInfo{prefix + FlagBearerToken, "", "", "Bearer token for authentication to the API server"},
+ Impersonate: FlagInfo{prefix + FlagImpersonate, "", "", "Username to impersonate for the operation"},
+ ImpersonateGroups: FlagInfo{prefix + FlagImpersonateGroup, "", "", "Group to impersonate for the operation, this flag can be repeated to specify multiple groups."},
+ Username: FlagInfo{prefix + FlagUsername, "", "", "Username for basic authentication to the API server"},
+ Password: FlagInfo{prefix + FlagPassword, "", "", "Password for basic authentication to the API server"},
+ }
+}
+
+// RecommendedClusterOverrideFlags is a convenience method to return recommended flag names prefixed with a string of your choosing
+func RecommendedClusterOverrideFlags(prefix string) ClusterOverrideFlags {
+ return ClusterOverrideFlags{
+ APIServer: FlagInfo{prefix + FlagAPIServer, "", "", "The address and port of the Kubernetes API server"},
+ CertificateAuthority: FlagInfo{prefix + FlagCAFile, "", "", "Path to a cert file for the certificate authority"},
+ InsecureSkipTLSVerify: FlagInfo{prefix + FlagInsecure, "", "false", "If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure"},
+ }
+}
+
+// RecommendedContextOverrideFlags is a convenience method to return recommended flag names prefixed with a string of your choosing
+func RecommendedContextOverrideFlags(prefix string) ContextOverrideFlags {
+ return ContextOverrideFlags{
+ ClusterName: FlagInfo{prefix + FlagClusterName, "", "", "The name of the kubeconfig cluster to use"},
+ AuthInfoName: FlagInfo{prefix + FlagAuthInfoName, "", "", "The name of the kubeconfig user to use"},
+ Namespace: FlagInfo{prefix + FlagNamespace, "n", "", "If present, the namespace scope for this CLI request"},
+ }
+}
+
+// BindOverrideFlags is a convenience method to bind the specified flags to their associated variables
+func BindOverrideFlags(overrides *ConfigOverrides, flags *pflag.FlagSet, flagNames ConfigOverrideFlags) {
+ BindAuthInfoFlags(&overrides.AuthInfo, flags, flagNames.AuthOverrideFlags)
+ BindClusterFlags(&overrides.ClusterInfo, flags, flagNames.ClusterOverrideFlags)
+ BindContextFlags(&overrides.Context, flags, flagNames.ContextOverrideFlags)
+ flagNames.CurrentContext.BindStringFlag(flags, &overrides.CurrentContext)
+ flagNames.Timeout.BindStringFlag(flags, &overrides.Timeout)
+}
+
+// BindAuthInfoFlags is a convenience method to bind the specified flags to their associated variables
+func BindAuthInfoFlags(authInfo *clientcmdapi.AuthInfo, flags *pflag.FlagSet, flagNames AuthOverrideFlags) {
+ flagNames.ClientCertificate.BindStringFlag(flags, &authInfo.ClientCertificate).AddSecretAnnotation(flags)
+ flagNames.ClientKey.BindStringFlag(flags, &authInfo.ClientKey).AddSecretAnnotation(flags)
+ flagNames.Token.BindStringFlag(flags, &authInfo.Token).AddSecretAnnotation(flags)
+ flagNames.Impersonate.BindStringFlag(flags, &authInfo.Impersonate).AddSecretAnnotation(flags)
+ flagNames.ImpersonateGroups.BindStringArrayFlag(flags, &authInfo.ImpersonateGroups).AddSecretAnnotation(flags)
+ flagNames.Username.BindStringFlag(flags, &authInfo.Username).AddSecretAnnotation(flags)
+ flagNames.Password.BindStringFlag(flags, &authInfo.Password).AddSecretAnnotation(flags)
+}
+
+// BindClusterFlags is a convenience method to bind the specified flags to their associated variables
+func BindClusterFlags(clusterInfo *clientcmdapi.Cluster, flags *pflag.FlagSet, flagNames ClusterOverrideFlags) {
+ flagNames.APIServer.BindStringFlag(flags, &clusterInfo.Server)
+ flagNames.CertificateAuthority.BindStringFlag(flags, &clusterInfo.CertificateAuthority)
+ flagNames.InsecureSkipTLSVerify.BindBoolFlag(flags, &clusterInfo.InsecureSkipTLSVerify)
+}
+
+// BindFlags is a convenience method to bind the specified flags to their associated variables
+func BindContextFlags(contextInfo *clientcmdapi.Context, flags *pflag.FlagSet, flagNames ContextOverrideFlags) {
+ flagNames.ClusterName.BindStringFlag(flags, &contextInfo.Cluster)
+ flagNames.AuthInfoName.BindStringFlag(flags, &contextInfo.AuthInfo)
+ flagNames.Namespace.BindTransformingStringFlag(flags, &contextInfo.Namespace, RemoveNamespacesPrefix)
+}
+
+// RemoveNamespacesPrefix is a transformer that strips "ns/", "namespace/" and "namespaces/" prefixes case-insensitively
+func RemoveNamespacesPrefix(value string) (string, error) {
+ for _, prefix := range []string{"namespaces/", "namespace/", "ns/"} {
+ if len(value) > len(prefix) && strings.EqualFold(value[0:len(prefix)], prefix) {
+ value = value[len(prefix):]
+ break
+ }
+ }
+ return value, nil
+}
diff --git a/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/validation.go b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/validation.go
new file mode 100644
index 0000000..629c0b3
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/client-go/tools/clientcmd/validation.go
@@ -0,0 +1,298 @@
+/*
+Copyright 2014 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 clientcmd
+
+import (
+ "errors"
+ "fmt"
+ "os"
+ "reflect"
+ "strings"
+
+ utilerrors "k8s.io/apimachinery/pkg/util/errors"
+ "k8s.io/apimachinery/pkg/util/validation"
+ clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+)
+
+var (
+ ErrNoContext = errors.New("no context chosen")
+ ErrEmptyConfig = errors.New("no configuration has been provided")
+ // message is for consistency with old behavior
+ ErrEmptyCluster = errors.New("cluster has no server defined")
+)
+
+type errContextNotFound struct {
+ ContextName string
+}
+
+func (e *errContextNotFound) Error() string {
+ return fmt.Sprintf("context was not found for specified context: %v", e.ContextName)
+}
+
+// IsContextNotFound returns a boolean indicating whether the error is known to
+// report that a context was not found
+func IsContextNotFound(err error) bool {
+ if err == nil {
+ return false
+ }
+ if _, ok := err.(*errContextNotFound); ok || err == ErrNoContext {
+ return true
+ }
+ return strings.Contains(err.Error(), "context was not found for specified context")
+}
+
+// IsEmptyConfig returns true if the provided error indicates the provided configuration
+// is empty.
+func IsEmptyConfig(err error) bool {
+ switch t := err.(type) {
+ case errConfigurationInvalid:
+ return len(t) == 1 && t[0] == ErrEmptyConfig
+ }
+ return err == ErrEmptyConfig
+}
+
+// errConfigurationInvalid is a set of errors indicating the configuration is invalid.
+type errConfigurationInvalid []error
+
+// errConfigurationInvalid implements error and Aggregate
+var _ error = errConfigurationInvalid{}
+var _ utilerrors.Aggregate = errConfigurationInvalid{}
+
+func newErrConfigurationInvalid(errs []error) error {
+ switch len(errs) {
+ case 0:
+ return nil
+ default:
+ return errConfigurationInvalid(errs)
+ }
+}
+
+// Error implements the error interface
+func (e errConfigurationInvalid) Error() string {
+ return fmt.Sprintf("invalid configuration: %v", utilerrors.NewAggregate(e).Error())
+}
+
+// Errors implements the AggregateError interface
+func (e errConfigurationInvalid) Errors() []error {
+ return e
+}
+
+// IsConfigurationInvalid returns true if the provided error indicates the configuration is invalid.
+func IsConfigurationInvalid(err error) bool {
+ switch err.(type) {
+ case *errContextNotFound, errConfigurationInvalid:
+ return true
+ }
+ return IsContextNotFound(err)
+}
+
+// Validate checks for errors in the Config. It does not return early so that it can find as many errors as possible.
+func Validate(config clientcmdapi.Config) error {
+ validationErrors := make([]error, 0)
+
+ if clientcmdapi.IsConfigEmpty(&config) {
+ return newErrConfigurationInvalid([]error{ErrEmptyConfig})
+ }
+
+ if len(config.CurrentContext) != 0 {
+ if _, exists := config.Contexts[config.CurrentContext]; !exists {
+ validationErrors = append(validationErrors, &errContextNotFound{config.CurrentContext})
+ }
+ }
+
+ for contextName, context := range config.Contexts {
+ validationErrors = append(validationErrors, validateContext(contextName, *context, config)...)
+ }
+
+ for authInfoName, authInfo := range config.AuthInfos {
+ validationErrors = append(validationErrors, validateAuthInfo(authInfoName, *authInfo)...)
+ }
+
+ for clusterName, clusterInfo := range config.Clusters {
+ validationErrors = append(validationErrors, validateClusterInfo(clusterName, *clusterInfo)...)
+ }
+
+ return newErrConfigurationInvalid(validationErrors)
+}
+
+// ConfirmUsable looks a particular context and determines if that particular part of the config is useable. There might still be errors in the config,
+// but no errors in the sections requested or referenced. It does not return early so that it can find as many errors as possible.
+func ConfirmUsable(config clientcmdapi.Config, passedContextName string) error {
+ validationErrors := make([]error, 0)
+
+ if clientcmdapi.IsConfigEmpty(&config) {
+ return newErrConfigurationInvalid([]error{ErrEmptyConfig})
+ }
+
+ var contextName string
+ if len(passedContextName) != 0 {
+ contextName = passedContextName
+ } else {
+ contextName = config.CurrentContext
+ }
+
+ if len(contextName) == 0 {
+ return ErrNoContext
+ }
+
+ context, exists := config.Contexts[contextName]
+ if !exists {
+ validationErrors = append(validationErrors, &errContextNotFound{contextName})
+ }
+
+ if exists {
+ validationErrors = append(validationErrors, validateContext(contextName, *context, config)...)
+ validationErrors = append(validationErrors, validateAuthInfo(context.AuthInfo, *config.AuthInfos[context.AuthInfo])...)
+ validationErrors = append(validationErrors, validateClusterInfo(context.Cluster, *config.Clusters[context.Cluster])...)
+ }
+
+ return newErrConfigurationInvalid(validationErrors)
+}
+
+// validateClusterInfo looks for conflicts and errors in the cluster info
+func validateClusterInfo(clusterName string, clusterInfo clientcmdapi.Cluster) []error {
+ validationErrors := make([]error, 0)
+
+ emptyCluster := clientcmdapi.NewCluster()
+ if reflect.DeepEqual(*emptyCluster, clusterInfo) {
+ return []error{ErrEmptyCluster}
+ }
+
+ if len(clusterInfo.Server) == 0 {
+ if len(clusterName) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("default cluster has no server defined"))
+ } else {
+ validationErrors = append(validationErrors, fmt.Errorf("no server found for cluster %q", clusterName))
+ }
+ }
+ // Make sure CA data and CA file aren't both specified
+ if len(clusterInfo.CertificateAuthority) != 0 && len(clusterInfo.CertificateAuthorityData) != 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("certificate-authority-data and certificate-authority are both specified for %v. certificate-authority-data will override.", clusterName))
+ }
+ if len(clusterInfo.CertificateAuthority) != 0 {
+ clientCertCA, err := os.Open(clusterInfo.CertificateAuthority)
+ defer clientCertCA.Close()
+ if err != nil {
+ validationErrors = append(validationErrors, fmt.Errorf("unable to read certificate-authority %v for %v due to %v", clusterInfo.CertificateAuthority, clusterName, err))
+ }
+ }
+
+ return validationErrors
+}
+
+// validateAuthInfo looks for conflicts and errors in the auth info
+func validateAuthInfo(authInfoName string, authInfo clientcmdapi.AuthInfo) []error {
+ validationErrors := make([]error, 0)
+
+ usingAuthPath := false
+ methods := make([]string, 0, 3)
+ if len(authInfo.Token) != 0 {
+ methods = append(methods, "token")
+ }
+ if len(authInfo.Username) != 0 || len(authInfo.Password) != 0 {
+ methods = append(methods, "basicAuth")
+ }
+
+ if len(authInfo.ClientCertificate) != 0 || len(authInfo.ClientCertificateData) != 0 {
+ // Make sure cert data and file aren't both specified
+ if len(authInfo.ClientCertificate) != 0 && len(authInfo.ClientCertificateData) != 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("client-cert-data and client-cert are both specified for %v. client-cert-data will override.", authInfoName))
+ }
+ // Make sure key data and file aren't both specified
+ if len(authInfo.ClientKey) != 0 && len(authInfo.ClientKeyData) != 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("client-key-data and client-key are both specified for %v; client-key-data will override", authInfoName))
+ }
+ // Make sure a key is specified
+ if len(authInfo.ClientKey) == 0 && len(authInfo.ClientKeyData) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("client-key-data or client-key must be specified for %v to use the clientCert authentication method.", authInfoName))
+ }
+
+ if len(authInfo.ClientCertificate) != 0 {
+ clientCertFile, err := os.Open(authInfo.ClientCertificate)
+ defer clientCertFile.Close()
+ if err != nil {
+ validationErrors = append(validationErrors, fmt.Errorf("unable to read client-cert %v for %v due to %v", authInfo.ClientCertificate, authInfoName, err))
+ }
+ }
+ if len(authInfo.ClientKey) != 0 {
+ clientKeyFile, err := os.Open(authInfo.ClientKey)
+ defer clientKeyFile.Close()
+ if err != nil {
+ validationErrors = append(validationErrors, fmt.Errorf("unable to read client-key %v for %v due to %v", authInfo.ClientKey, authInfoName, err))
+ }
+ }
+ }
+
+ if authInfo.Exec != nil {
+ if authInfo.AuthProvider != nil {
+ validationErrors = append(validationErrors, fmt.Errorf("authProvider cannot be provided in combination with an exec plugin for %s", authInfoName))
+ }
+ if len(authInfo.Exec.Command) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("command must be specified for %v to use exec authentication plugin", authInfoName))
+ }
+ if len(authInfo.Exec.APIVersion) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("apiVersion must be specified for %v to use exec authentication plugin", authInfoName))
+ }
+ for _, v := range authInfo.Exec.Env {
+ if len(v.Name) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("env variable name must be specified for %v to use exec authentication plugin", authInfoName))
+ } else if len(v.Value) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("env variable %s value must be specified for %v to use exec authentication plugin", v.Name, authInfoName))
+ }
+ }
+ }
+
+ // authPath also provides information for the client to identify the server, so allow multiple auth methods in that case
+ if (len(methods) > 1) && (!usingAuthPath) {
+ validationErrors = append(validationErrors, fmt.Errorf("more than one authentication method found for %v; found %v, only one is allowed", authInfoName, methods))
+ }
+
+ // ImpersonateGroups or ImpersonateUserExtra should be requested with a user
+ if (len(authInfo.ImpersonateGroups) > 0 || len(authInfo.ImpersonateUserExtra) > 0) && (len(authInfo.Impersonate) == 0) {
+ validationErrors = append(validationErrors, fmt.Errorf("requesting groups or user-extra for %v without impersonating a user", authInfoName))
+ }
+ return validationErrors
+}
+
+// validateContext looks for errors in the context. It is not transitive, so errors in the reference authInfo or cluster configs are not included in this return
+func validateContext(contextName string, context clientcmdapi.Context, config clientcmdapi.Config) []error {
+ validationErrors := make([]error, 0)
+
+ if len(contextName) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("empty context name for %#v is not allowed", context))
+ }
+
+ if len(context.AuthInfo) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("user was not specified for context %q", contextName))
+ } else if _, exists := config.AuthInfos[context.AuthInfo]; !exists {
+ validationErrors = append(validationErrors, fmt.Errorf("user %q was not found for context %q", context.AuthInfo, contextName))
+ }
+
+ if len(context.Cluster) == 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("cluster was not specified for context %q", contextName))
+ } else if _, exists := config.Clusters[context.Cluster]; !exists {
+ validationErrors = append(validationErrors, fmt.Errorf("cluster %q was not found for context %q", context.Cluster, contextName))
+ }
+
+ if len(context.Namespace) != 0 {
+ if len(validation.IsDNS1123Label(context.Namespace)) != 0 {
+ validationErrors = append(validationErrors, fmt.Errorf("namespace %q for context %q does not conform to the kubernetes DNS_LABEL rules", context.Namespace, contextName))
+ }
+ }
+
+ return validationErrors
+}