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vendor: k8s.io/client-go/tools/clientcmd/...@v3.0.0-beta.0

This commit is contained in:
Radek Simko 2017-05-30 08:13:47 +01:00
parent dc0713b248
commit 59c8c1d020
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GPG Key ID: 6823F3DCCE01BB19
18 changed files with 3188 additions and 0 deletions
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23
vendor/k8s.io/client-go/tools/auth/BUILD generated vendored Normal file
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package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
name = "go_default_library",
srcs = ["clientauth.go"],
tags = ["automanaged"],
deps = ["//vendor/k8s.io/client-go/rest:go_default_library"],
)
go_test(
name = "go_default_xtest",
srcs = ["clientauth_test.go"],
tags = ["automanaged"],
deps = ["//vendor/k8s.io/client-go/tools/auth:go_default_library"],
)

125
vendor/k8s.io/client-go/tools/auth/clientauth.go generated vendored Normal file
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/*
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 auth defines a file format for holding authentication
information needed by clients of Kubernetes. Typically,
a Kubernetes cluster will put auth info for the admin in a known
location when it is created, and will (soon) put it in a known
location within a Container's file tree for Containers that
need access to the Kubernetes API.
Having a defined format allows:
- clients to be implmented in multiple languages
- applications which link clients to be portable across
clusters with different authentication styles (e.g.
some may use SSL Client certs, others may not, etc)
- when the format changes, applications only
need to update this code.
The file format is json, marshalled from a struct authcfg.Info.
Clinet libraries in other languages should use the same format.
It is not intended to store general preferences, such as default
namespace, output options, etc. CLIs (such as kubectl) and UIs should
develop their own format and may wish to inline the authcfg.Info type.
The authcfg.Info is just a file format. It is distinct from
client.Config which holds options for creating a client.Client.
Helper functions are provided in this package to fill in a
client.Client from an authcfg.Info.
Example:
import (
"pkg/client"
"pkg/client/auth"
)
info, err := auth.LoadFromFile(filename)
if err != nil {
// handle error
}
clientConfig = client.Config{}
clientConfig.Host = "example.com:4901"
clientConfig = info.MergeWithConfig()
client := client.New(clientConfig)
client.Pods(ns).List()
*/
package auth
// TODO: need a way to rotate Tokens. Therefore, need a way for client object to be reset when the authcfg is updated.
import (
"encoding/json"
"io/ioutil"
"os"
restclient "k8s.io/client-go/rest"
)
// Info holds Kubernetes API authorization config. It is intended
// to be read/written from a file as a JSON object.
type Info struct {
User string
Password string
CAFile string
CertFile string
KeyFile string
BearerToken string
Insecure *bool
}
// LoadFromFile parses an Info object from a file path.
// If the file does not exist, then os.IsNotExist(err) == true
func LoadFromFile(path string) (*Info, error) {
var info Info
if _, err := os.Stat(path); os.IsNotExist(err) {
return nil, err
}
data, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
err = json.Unmarshal(data, &info)
if err != nil {
return nil, err
}
return &info, err
}
// MergeWithConfig returns a copy of a client.Config with values from the Info.
// The fields of client.Config with a corresponding field in the Info are set
// with the value from the Info.
func (info Info) MergeWithConfig(c restclient.Config) (restclient.Config, error) {
var config restclient.Config = c
config.Username = info.User
config.Password = info.Password
config.CAFile = info.CAFile
config.CertFile = info.CertFile
config.KeyFile = info.KeyFile
config.BearerToken = info.BearerToken
if info.Insecure != nil {
config.Insecure = *info.Insecure
}
return config, nil
}
func (info Info) Complete() bool {
return len(info.User) > 0 ||
len(info.CertFile) > 0 ||
len(info.BearerToken) > 0
}

66
vendor/k8s.io/client-go/tools/clientcmd/api/latest/latest.go generated vendored Normal file
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/*
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,
)
}

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vendor/k8s.io/client-go/tools/clientcmd/api/v1/conversion.go generated vendored Normal file
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/*
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 (
"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
}
(*out)[curr.Name] = newCluster
}
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
}
(*out)[curr.Name] = newAuthInfo
}
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
}
(*out)[curr.Name] = newContext
}
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
}
(*out)[curr.Name] = newExtension
}
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
},
)
}

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vendor/k8s.io/client-go/tools/clientcmd/api/v1/register.go generated vendored Normal file
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/*
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 (
SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes, addConversionFuncs)
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)
}

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vendor/k8s.io/client-go/tools/clientcmd/api/v1/types.go generated vendored Normal file
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/*
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
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"`
// DEPRECATED: APIVersion is the preferred api version for communicating with the kubernetes cluster (v1, v2, etc).
// Because a cluster can run multiple API groups and potentially multiple versions of each, it no longer makes sense to specify
// a single value for the cluster version.
// This field isn't really needed anyway, so we are deprecating it without replacement.
// It will be ignored if it is present.
// +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"`
// APIVersion is the preferred api version for communicating with the kubernetes cluster (v1, v2, etc).
// +optional
APIVersion string `json:"api-version,omitempty"`
// 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"`
// 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"`
// 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"`
}

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vendor/k8s.io/client-go/tools/clientcmd/auth_loaders.go generated vendored Normal file
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/*
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"
"github.com/howeyc/gopass"
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
data, err = gopass.GetPasswdMasked()
result = string(data)
}
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{}
}

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vendor/k8s.io/client-go/tools/clientcmd/client_config.go generated vendored Normal file
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/*
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"
"k8s.io/client-go/pkg/api"
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{}}
}
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 curent 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}
}
// 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 identifcation
// 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 idenfity 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}
}
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 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
}
// Namespace implements ClientConfig
func (config *DirectClientConfig) Namespace() (string, bool, error) {
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 api.NamespaceDefault, false, nil
}
overridden := false
if config.overrides != nil && config.overrides.Context.Namespace != "" {
overridden = true
}
return configContext.Namespace, overridden, 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, ovewrite 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, true, 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, true, 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()
}

472
vendor/k8s.io/client-go/tools/clientcmd/config.go generated vendored Normal file
View File

@ -0,0 +1,472 @@
/*
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{}
}
return filepath.SplitList(envVarValue)
}
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
}

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/*
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"

35
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/*
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)")
}

609
vendor/k8s.io/client-go/tools/clientcmd/loader.go generated vendored Normal file
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/*
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 RecommendedHomeFile = path.Join(homedir.HomeDir(), RecommendedHomeDir, RecommendedFileName)
var RecommendedSchemaFile = path.Join(homedir.HomeDir(), RecommendedHomeDir, 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 thie 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 {
chain = append(chain, filepath.SplitList(envVarFiles)...)
} 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 seperate 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 {
return []*string{&authInfo.ClientCertificate, &authInfo.ClientKey, &authInfo.TokenFile}
}
// 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
}

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vendor/k8s.io/client-go/tools/clientcmd/merged_client_builder.go generated vendored Normal file
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/*
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, ok, 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)) || ok || !config.icc.Possible() {
// return on any error except empty config
return ns, ok, err
}
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
}

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/*
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"
"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
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
}
// 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"
FlagAPIVersion = "api-version"
FlagInsecure = "insecure-skip-tls-verify"
FlagCertFile = "client-certificate"
FlagKeyFile = "client-key"
FlagCAFile = "certificate-authority"
FlagEmbedCerts = "embed-certs"
FlagBearerToken = "token"
FlagImpersonate = "as"
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"},
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"},
APIVersion: FlagInfo{prefix + FlagAPIVersion, "", "", "DEPRECATED: The API version to use when talking to the 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.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)
// TODO: remove --api-version flag in 1.3.
flagNames.APIVersion.BindStringFlag(flags, &clusterInfo.APIVersion)
flags.MarkDeprecated(FlagAPIVersion, "flag is no longer respected and will be deleted in the next release")
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.BindStringFlag(flags, &contextInfo.Namespace)
}

270
vendor/k8s.io/client-go/tools/clientcmd/validation.go generated vendored Normal file
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/*
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)
if reflect.DeepEqual(clientcmdapi.Cluster{}, 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))
}
}
}
// 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))
}
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(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
}

14
vendor/k8s.io/client-go/util/homedir/BUILD generated vendored Normal file
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package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
)
go_library(
name = "go_default_library",
srcs = ["homedir.go"],
tags = ["automanaged"],
)

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vendor/k8s.io/client-go/util/homedir/homedir.go generated vendored Normal file
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/*
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 homedir
import (
"os"
"runtime"
)
// HomeDir returns the home directory for the current user
func HomeDir() string {
if runtime.GOOS == "windows" {
// First prefer the HOME environmental variable
if home := os.Getenv("HOME"); len(home) > 0 {
if _, err := os.Stat(home); err == nil {
return home
}
}
if homeDrive, homePath := os.Getenv("HOMEDRIVE"), os.Getenv("HOMEPATH"); len(homeDrive) > 0 && len(homePath) > 0 {
homeDir := homeDrive + homePath
if _, err := os.Stat(homeDir); err == nil {
return homeDir
}
}
if userProfile := os.Getenv("USERPROFILE"); len(userProfile) > 0 {
if _, err := os.Stat(userProfile); err == nil {
return userProfile
}
}
}
return os.Getenv("HOME")
}

36
vendor/vendor.json vendored
View File

@ -4299,6 +4299,20 @@
"version": "v3.0.0-beta.0",
"versionExact": "v3.0.0-beta.0"
},
{
"checksumSHA1": "1ckiORH3dJD8v3R8tLEZ/5wttAk=",
"path": "k8s.io/client-go/tools/auth",
"revision": "6b1566ccaa7c069f392461bef8a5fb17087f4729",
"revisionTime": "2017-05-22T17:54:13Z"
},
{
"checksumSHA1": "y8RjCuBi8XrHvvVsguI7E97Fh6M=",
"path": "k8s.io/client-go/tools/clientcmd",
"revision": "3627aeb7d4f6ade38f995d2c923e459146493c7e",
"revisionTime": "2017-03-31T20:34:26Z",
"version": "v3.0.0-beta.0",
"versionExact": "v3.0.0-beta.0"
},
{
"checksumSHA1": "1jUQmUDroNs5XYhsQna4kNTzMik=",
"path": "k8s.io/client-go/tools/clientcmd/api",
@ -4307,6 +4321,22 @@
"version": "v3.0.0-beta.0",
"versionExact": "v3.0.0-beta.0"
},
{
"checksumSHA1": "6cVFBhDYvRiAwBf0QYbmUoLi5lQ=",
"path": "k8s.io/client-go/tools/clientcmd/api/latest",
"revision": "3627aeb7d4f6ade38f995d2c923e459146493c7e",
"revisionTime": "2017-03-31T20:34:26Z",
"version": "v3.0.0-beta.0",
"versionExact": "v3.0.0-beta.0"
},
{
"checksumSHA1": "DG6X6yy03Om6CFqIZm08+geRGkI=",
"path": "k8s.io/client-go/tools/clientcmd/api/v1",
"revision": "3627aeb7d4f6ade38f995d2c923e459146493c7e",
"revisionTime": "2017-03-31T20:34:26Z",
"version": "v3.0.0-beta.0",
"versionExact": "v3.0.0-beta.0"
},
{
"checksumSHA1": "rRC9GCWXfyIXKHBCeKpw7exVybE=",
"path": "k8s.io/client-go/tools/metrics",
@ -4347,6 +4377,12 @@
"version": "v3.0.0-beta.0",
"versionExact": "v3.0.0-beta.0"
},
{
"checksumSHA1": "jP91eRmXcfaEo/NU7Lk1coovunQ=",
"path": "k8s.io/client-go/util/homedir",
"revision": "6b1566ccaa7c069f392461bef8a5fb17087f4729",
"revisionTime": "2017-05-22T17:54:13Z"
},
{
"checksumSHA1": "W6bJiNAwgNwNJC+y+TPtacgUGlY=",
"path": "k8s.io/client-go/util/integer",