Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/k8s.io/client-go/tools/clientcmd/overrides.go b/vendor/k8s.io/client-go/tools/clientcmd/overrides.go
new file mode 100644
index 0000000..bfca032
--- /dev/null
+++ b/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
+}