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add kubectl config

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deads2k 2014-12-17 08:03:03 -05:00
parent de2e298fa9
commit b51a717f6e
28 changed files with 2289 additions and 270 deletions
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137
docs/kubeconfig-file.md
View File

@ -8,36 +8,46 @@ https://github.com/GoogleCloudPlatform/kubernetes/issues/1755
## Example .kubeconfig file
```
preferences:
colors: true
apiVersion: v1
clusters:
cow-cluster:
server: http://cow.org:8080
- cluster:
api-version: v1beta1
horse-cluster:
server: https://horse.org:4443
server: http://cow.org:8080
name: cow-cluster
- cluster:
certificate-authority: path/to/my/cafile
pig-cluster:
server: https://pig.org:443
server: https://horse.org:4443
name: horse-cluster
- cluster:
insecure-skip-tls-verify: true
server: https://pig.org:443
name: pig-cluster
contexts:
- context:
cluster: horse-cluster
namespace: chisel-ns
user: green-user
name: federal-context
- context:
cluster: pig-cluster
namespace: saw-ns
user: black-user
name: queen-anne-context
current-context: federal-context
kind: Config
preferences:
colors: true
users:
black-user:
auth-path: path/to/my/existing/.kubernetes_auth file
blue-user:
- name: black-user
user:
auth-path: path/to/my/existing/.kubernetes_auth_file
- name: blue-user
user:
token: blue-token
green-user:
- name: green-user
user:
client-certificate: path/to/my/client/cert
client-key: path/to/my/client/key
contexts:
queen-anne-context:
cluster: pig-cluster
user: black-user
namespace: saw-ns
federal-context:
cluster: horse-cluster
user: green-user
namespace: chisel-ns
current-context: federal-context
```
## Loading and merging rules
@ -67,3 +77,86 @@ The rules for loading and merging the .kubeconfig files are straightforward, but
The command line flags are: `auth-path`, `client-certificate`, `client-key`, and `token`. If there are two conflicting techniques, fail.
1. For any information still missing, use default values and potentially prompt for authentication information
## Manipulation of .kubeconfig via `kubectl config <subcommand>`
In order to more easily manipulate .kubeconfig files, there are a series of subcommands to `kubectl config` to help.
```
kubectl config set-credentials name --auth-path=path/to/authfile --client-certificate=path/to/cert --client-key=path/to/key --token=string
Sets a user entry in .kubeconfig. If the referenced name already exists, it will be overwritten.
kubectl config set-cluster name --server=server --skip-tls=bool --certificate-authority=path/to/ca --api-version=string
Sets a cluster entry in .kubeconfig. If the referenced name already exists, it will be overwritten.
kubectl config set-context name --user=string --cluster=string --namespace=string
Sets a config entry in .kubeconfig. If the referenced name already exists, it will be overwritten.
kubectl config use-context name
Sets current-context to name
kubectl config set property-name property-value
Sets arbitrary value in .kubeconfig
kubectl config unset property-name
Unsets arbitrary value in .kubeconfig
kubectl config view --local=true --global=false --kubeconfig=specific/filename --merged
Displays the merged (or not) result of the specified .kubeconfig file
--local, --global, and --kubeconfig are valid flags for all of these operations.
```
### Example
```
$kubectl config set-credentials myself --auth-path=path/to/my/existing/auth-file
$kubectl config set-cluster local-server --server=http://localhost:8080
$kubectl config set-context default-context --cluster=local-server --user=myself
$kubectl config use-context default-context
$kubectl config set contexts.default-context.namespace the-right-prefix
$kubectl config view
```
produces this output
```
clusters:
local-server:
server: http://localhost:8080
contexts:
default-context:
cluster: local-server
namespace: the-right-prefix
user: myself
current-context: default-context
preferences: {}
users:
myself:
auth-path: path/to/my/existing/auth-file
```
and a .kubeconfig file that looks like this
```
apiVersion: v1
clusters:
- cluster:
server: http://localhost:8080
name: local-server
contexts:
- context:
cluster: local-server
namespace: the-right-prefix
user: myself
name: default-context
current-context: default-context
kind: Config
preferences: {}
users:
- name: myself
user:
auth-path: path/to/my/existing/auth-file
```
#### Commands for the example file
```
$kubectl config set preferences.colors true
$kubectl config set-cluster cow-cluster --server=http://cow.org:8080 --api-version=v1beta1
$kubectl config set-cluster horse-cluster --server=https://horse.org:4443 --certificate-authority=path/to/my/cafile
$kubectl config set-cluster pig-cluster --server=https://pig.org:443 --insecure-skip-tls-verify=true
$kubectl config set-credentials black-user --auth-path=path/to/my/existing/.kubernetes_auth_file
$kubectl config set-credentials blue-user --token=blue-token
$kubectl config set-credentials green-user --client-certificate=path/to/my/client/cert --client-key=path/to/my/client/key
$kubectl config set-context queen-anne-context --cluster=pig-cluster --user=black-user --namespace=saw-ns
$kubectl config set-context federal-context --cluster=horse-cluster --user=green-user --namespace=chisel-ns
$kubectl config use-context federal-context
```

40
pkg/client/clientcmd/api/latest/latest.go Normal file
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@ -0,0 +1,40 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 (
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api/v1"
)
// Version is the string that represents the current external default version.
const 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"}
// Codec is the default codec for serializing output that should use
// the latest supported version. Use this Codec when writing to
// disk, a data store that is not dynamically versioned, or in tests.
// This codec can decode any object that Kubernetes is aware of.
var Codec = v1.Codec

32
pkg/client/clientcmd/api/register.go Normal file
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@ -0,0 +1,32 @@
/*
Copyright 2014 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package api
import (
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
)
// Scheme is the default instance of runtime.Scheme to which types in the Kubernetes API are already registered.
var Scheme = runtime.NewScheme()
func init() {
Scheme.AddKnownTypes("",
&Config{},
)
}
func (*Config) IsAnAPIObject() {}

119
pkg/client/clientcmd/api/types.go Normal file
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@ -0,0 +1,119 @@
/*
Copyright 2014 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package api
import (
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/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 {
api.TypeMeta `json:",inline"`
// Preferences holds general information to be use for cli interactions
Preferences Preferences `json:"preferences"`
// Clusters is a map of referencable names to cluster configs
Clusters map[string]Cluster `json:"clusters"`
// AuthInfos is a map of referencable names to user configs
AuthInfos map[string]AuthInfo `json:"users"`
// Contexts is a map of referencable names to context configs
Contexts map[string]Context `json:"contexts"`
// CurrentContext is the name of the context that you would like to use by default
CurrentContext string `json:"current-context"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
Extensions map[string]runtime.EmbeddedObject `json:"extensions,omitempty"`
}
type Preferences struct {
Colors bool `json:"colors,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
Extensions map[string]runtime.EmbeddedObject `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 (v1beta1, v1beta2, v1beta3, etc).
APIVersion string `json:"api-version,omitempty"`
// InsecureSkipTLSVerify skips the validity check for the server's certificate. This will make your HTTPS connections insecure.
InsecureSkipTLSVerify bool `json:"insecure-skip-tls-verify,omitempty"`
// CertificateAuthority is the path to a cert file for the certificate authority.
CertificateAuthority string `json:"certificate-authority,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
Extensions map[string]runtime.EmbeddedObject `json:"extensions,omitempty"`
}
// AuthInfo contains information that describes identity information. This is use to tell the kubernetes cluster who you are.
type AuthInfo struct {
// AuthPath is the path to a kubernetes auth file (~/.kubernetes_auth). If you provide an AuthPath, the other options specified are ignored
AuthPath string `json:"auth-path,omitempty"`
// ClientCertificate is the path to a client cert file for TLS.
ClientCertificate string `json:"client-certificate,omitempty"`
// ClientKey is the path to a client key file for TLS.
ClientKey string `json:"client-key,omitempty"`
// Token is the bearer token for authentication to the kubernetes cluster.
Token string `json:"token,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
Extensions map[string]runtime.EmbeddedObject `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
Namespace string `json:"namespace,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
Extensions map[string]runtime.EmbeddedObject `json:"extensions,omitempty"`
}
// NewConfig is a convenience function that returns a new Config object with non-nil maps
func NewConfig() *Config {
return &Config{
Preferences: *NewPreferences(),
Clusters: make(map[string]Cluster),
AuthInfos: make(map[string]AuthInfo),
Contexts: make(map[string]Context),
Extensions: make(map[string]runtime.EmbeddedObject),
}
}
// NewConfig is a convenience function that returns a new Config object with non-nil maps
func NewContext() *Context {
return &Context{Extensions: make(map[string]runtime.EmbeddedObject)}
}
// NewConfig is a convenience function that returns a new Config object with non-nil maps
func NewCluster() *Cluster {
return &Cluster{Extensions: make(map[string]runtime.EmbeddedObject)}
}
// NewConfig is a convenience function that returns a new Config object with non-nil maps
func NewAuthInfo() *AuthInfo {
return &AuthInfo{Extensions: make(map[string]runtime.EmbeddedObject)}
}
// NewConfig is a convenience function that returns a new Config object with non-nil maps
func NewPreferences() *Preferences {
return &Preferences{Extensions: make(map[string]runtime.EmbeddedObject)}
}

44
pkg/client/clientcmd/types_test.go → pkg/client/clientcmd/api/types_test.go
View File

@ -14,12 +14,12 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
package clientcmd
package api
import (
"fmt"
"gopkg.in/v2/yaml"
"github.com/ghodss/yaml"
)
func ExampleEmptyConfig() {
@ -32,11 +32,11 @@ func ExampleEmptyConfig() {
fmt.Printf("%v", string(output))
// Output:
// preferences: {}
// clusters: {}
// users: {}
// contexts: {}
// current-context: ""
// preferences: {}
// users: {}
}
func ExampleOfOptionsConfig() {
@ -86,17 +86,30 @@ func ExampleOfOptionsConfig() {
fmt.Printf("%v", string(output))
// Output:
// preferences:
// colors: true
// clusters:
// alfa:
// server: https://alfa.org:8080
// api-version: v1beta2
// insecure-skip-tls-verify: true
// certificate-authority: path/to/my/cert-ca-filename
// insecure-skip-tls-verify: true
// server: https://alfa.org:8080
// bravo:
// server: https://bravo.org:8080
// api-version: v1beta1
// server: https://bravo.org:8080
// contexts:
// alfa-as-black-mage:
// cluster: alfa
// namespace: zulu
// user: black-mage-via-file
// alfa-as-white-mage:
// cluster: alfa
// user: white-mage-via-cert
// bravo-as-black-mage:
// cluster: bravo
// namespace: yankee
// user: black-mage-via-file
// current-context: alfa-as-white-mage
// preferences:
// colors: true
// users:
// black-mage-via-file:
// auth-path: path/to/my/.kubernetes_auth
@ -105,17 +118,4 @@ func ExampleOfOptionsConfig() {
// white-mage-via-cert:
// client-certificate: path/to/my/client-cert-filename
// client-key: path/to/my/client-key-filename
// contexts:
// alfa-as-black-mage:
// cluster: alfa
// user: black-mage-via-file
// namespace: zulu
// alfa-as-white-mage:
// cluster: alfa
// user: white-mage-via-cert
// bravo-as-black-mage:
// cluster: bravo
// user: black-mage-via-file
// namespace: yankee
// current-context: alfa-as-white-mage
}

206
pkg/client/clientcmd/api/v1/conversion.go Normal file
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@ -0,0 +1,206 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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"
newer "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/conversion"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
)
func init() {
err := newer.Scheme.AddConversionFuncs(
func(in *Config, out *newer.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]newer.Cluster)
if err := s.Convert(&in.Clusters, &out.Clusters, 0); err != nil {
return err
}
out.AuthInfos = make(map[string]newer.AuthInfo)
if err := s.Convert(&in.AuthInfos, &out.AuthInfos, 0); err != nil {
return err
}
out.Contexts = make(map[string]newer.Context)
if err := s.Convert(&in.Contexts, &out.Contexts, 0); err != nil {
return err
}
out.Extensions = make(map[string]runtime.EmbeddedObject)
if err := s.Convert(&in.Extensions, &out.Extensions, 0); err != nil {
return err
}
return nil
},
func(in *newer.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]newer.Cluster, s conversion.Scope) error {
for _, curr := range *in {
newCluster := newer.NewCluster()
if err := s.Convert(&curr.Cluster, newCluster, 0); err != nil {
return err
}
(*out)[curr.Name] = *newCluster
}
return nil
},
func(in *map[string]newer.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]newer.AuthInfo, s conversion.Scope) error {
for _, curr := range *in {
newAuthInfo := newer.NewAuthInfo()
if err := s.Convert(&curr.AuthInfo, newAuthInfo, 0); err != nil {
return err
}
(*out)[curr.Name] = *newAuthInfo
}
return nil
},
func(in *map[string]newer.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]newer.Context, s conversion.Scope) error {
for _, curr := range *in {
newContext := newer.NewContext()
if err := s.Convert(&curr.Context, newContext, 0); err != nil {
return err
}
(*out)[curr.Name] = *newContext
}
return nil
},
func(in *map[string]newer.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.EmbeddedObject, s conversion.Scope) error {
for _, curr := range *in {
newExtension := &runtime.EmbeddedObject{}
if err := s.Convert(&curr.Extension, newExtension, 0); err != nil {
return err
}
(*out)[curr.Name] = *newExtension
}
return nil
},
func(in *map[string]runtime.EmbeddedObject, 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
},
)
if err != nil {
// If one of the conversion functions is malformed, detect it immediately.
panic(err)
}
}

33
pkg/client/clientcmd/api/v1/register.go Normal file
View File

@ -0,0 +1,33 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 (
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
)
// Codec encodes internal objects to the v1 scheme
var Codec = runtime.CodecFor(api.Scheme, "v1")
func init() {
api.Scheme.AddKnownTypes("v1",
&Config{},
)
}
func (*Config) IsAnAPIObject() {}

120
pkg/client/clientcmd/api/v1/types.go Normal file
View File

@ -0,0 +1,120 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 (
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta3"
"github.com/GoogleCloudPlatform/kubernetes/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 {
v1beta3.TypeMeta `json:",inline"`
// 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
Extensions []NamedExtension `json:"extensions,omitempty"`
}
type Preferences struct {
Colors bool `json:"colors,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
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 (v1beta1, v1beta2, v1beta3, etc).
APIVersion string `json:"api-version,omitempty"`
// InsecureSkipTLSVerify skips the validity check for the server's certificate. This will make your HTTPS connections insecure.
InsecureSkipTLSVerify bool `json:"insecure-skip-tls-verify,omitempty"`
// CertificateAuthority is the path to a cert file for the certificate authority.
CertificateAuthority string `json:"certificate-authority,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
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 {
// AuthPath is the path to a kubernetes auth file (~/.kubernetes_auth). If you provide an AuthPath, the other options specified are ignored
AuthPath string `json:"auth-path,omitempty"`
// ClientCertificate is the path to a client cert file for TLS.
ClientCertificate string `json:"client-certificate,omitempty"`
// ClientKey is the path to a client key file for TLS.
ClientKey string `json:"client-key,omitempty"`
// Token is the bearer token for authentication to the kubernetes cluster.
Token string `json:"token,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
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
Namespace string `json:"namespace,omitempty"`
// Extensions holds additional information. This is useful for extenders so that reads and writes don't clobber unknown fields
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"`
}

34
pkg/client/clientcmd/client_config.go
View File

@ -23,45 +23,51 @@ import (
"github.com/imdario/mergo"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/clientauth"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util/errors"
)
var (
// TODO: eventually apiserver should start on 443 and be secure by default
defaultCluster = Cluster{Server: "http://localhost:8080"}
envVarCluster = Cluster{Server: os.Getenv("KUBERNETES_MASTER")}
defaultCluster = clientcmdapi.Cluster{Server: "http://localhost:8080"}
envVarCluster = clientcmdapi.Cluster{Server: os.Getenv("KUBERNETES_MASTER")}
)
// ClientConfig is used to make it easy to get an api server client
type ClientConfig interface {
RawConfig() (clientcmdapi.Config, error)
// ClientConfig returns a complete client config
ClientConfig() (*client.Config, error)
}
// DirectClientConfig is a ClientConfig interface that is backed by a Config, options overrides, and an optional fallbackReader for auth information
// 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 Config
config clientcmdapi.Config
contextName string
overrides *ConfigOverrides
fallbackReader io.Reader
}
// NewDefaultClientConfig creates a DirectClientConfig using the config.CurrentContext as the context name
func NewDefaultClientConfig(config Config, overrides *ConfigOverrides) ClientConfig {
func NewDefaultClientConfig(config clientcmdapi.Config, overrides *ConfigOverrides) ClientConfig {
return DirectClientConfig{config, config.CurrentContext, overrides, nil}
}
// NewNonInteractiveClientConfig creates a DirectClientConfig using the passed context name and does not have a fallback reader for auth information
func NewNonInteractiveClientConfig(config Config, contextName string, overrides *ConfigOverrides) ClientConfig {
func NewNonInteractiveClientConfig(config clientcmdapi.Config, contextName string, overrides *ConfigOverrides) ClientConfig {
return DirectClientConfig{config, contextName, overrides, nil}
}
// 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 Config, contextName string, overrides *ConfigOverrides, fallbackReader io.Reader) ClientConfig {
func NewInteractiveClientConfig(config clientcmdapi.Config, contextName string, overrides *ConfigOverrides, fallbackReader io.Reader) ClientConfig {
return DirectClientConfig{config, contextName, overrides, fallbackReader}
}
func (config DirectClientConfig) RawConfig() (clientcmdapi.Config, error) {
return config.config, nil
}
// ClientConfig implements ClientConfig
func (config DirectClientConfig) ClientConfig() (*client.Config, error) {
if err := config.ConfirmUsable(); err != nil {
@ -102,7 +108,7 @@ func (config DirectClientConfig) ClientConfig() (*client.Config, error) {
// 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 AuthInfo, configClusterInfo Cluster) (*client.Config, error) {
func getServerIdentificationPartialConfig(configAuthInfo clientcmdapi.AuthInfo, configClusterInfo clientcmdapi.Cluster) (*client.Config, error) {
mergedConfig := &client.Config{}
defaultAuthPathInfo, err := NewDefaultAuthLoader().LoadAuth(os.Getenv("HOME") + "/.kubernetes_auth")
@ -140,7 +146,7 @@ func getServerIdentificationPartialConfig(configAuthInfo AuthInfo, configCluster
// 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 getUserIdentificationPartialConfig(configAuthInfo AuthInfo, fallbackReader io.Reader) (*client.Config, error) {
func getUserIdentificationPartialConfig(configAuthInfo clientcmdapi.AuthInfo, fallbackReader io.Reader) (*client.Config, error) {
mergedConfig := &client.Config{}
if len(configAuthInfo.AuthPath) > 0 {
@ -255,15 +261,15 @@ func (config DirectClientConfig) getClusterName() string {
return config.getContext().Cluster
}
func (config DirectClientConfig) getContext() Context {
func (config DirectClientConfig) getContext() clientcmdapi.Context {
return config.config.Contexts[config.getContextName()]
}
func (config DirectClientConfig) getAuthInfo() AuthInfo {
func (config DirectClientConfig) getAuthInfo() clientcmdapi.AuthInfo {
authInfos := config.config.AuthInfos
authInfoName := config.getAuthInfoName()
var mergedAuthInfo AuthInfo
var mergedAuthInfo clientcmdapi.AuthInfo
if configAuthInfo, exists := authInfos[authInfoName]; exists {
mergo.Merge(&mergedAuthInfo, configAuthInfo)
}
@ -272,11 +278,11 @@ func (config DirectClientConfig) getAuthInfo() AuthInfo {
return mergedAuthInfo
}
func (config DirectClientConfig) getCluster() Cluster {
func (config DirectClientConfig) getCluster() clientcmdapi.Cluster {
clusterInfos := config.config.Clusters
clusterInfoName := config.getClusterName()
var mergedClusterInfo Cluster
var mergedClusterInfo clientcmdapi.Cluster
mergo.Merge(&mergedClusterInfo, defaultCluster)
mergo.Merge(&mergedClusterInfo, envVarCluster)
if configClusterInfo, exists := clusterInfos[clusterInfoName]; exists {

11
pkg/client/clientcmd/client_config_test.go
View File

@ -22,23 +22,24 @@ import (
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
func createValidTestConfig() *Config {
func createValidTestConfig() *clientcmdapi.Config {
const (
server = "https://anything.com:8080"
token = "the-token"
)
config := NewConfig()
config.Clusters["clean"] = Cluster{
config := clientcmdapi.NewConfig()
config.Clusters["clean"] = clientcmdapi.Cluster{
Server: server,
APIVersion: latest.Version,
}
config.AuthInfos["clean"] = AuthInfo{
config.AuthInfos["clean"] = clientcmdapi.AuthInfo{
Token: token,
}
config.Contexts["clean"] = Context{
config.Contexts["clean"] = clientcmdapi.Context{
Cluster: "clean",
AuthInfo: "clean",
}

28
pkg/client/clientcmd/loader.go
View File

@ -20,8 +20,11 @@ import (
"io/ioutil"
"os"
"github.com/ghodss/yaml"
"github.com/imdario/mergo"
"gopkg.in/v2/yaml"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
clientcmdlatest "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api/latest"
)
const (
@ -56,8 +59,8 @@ func NewClientConfigLoadingRules() *ClientConfigLoadingRules {
// This means that the first file to set CurrentContext will have its context preserved. 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.
func (rules *ClientConfigLoadingRules) Load() (*Config, error) {
config := NewConfig()
func (rules *ClientConfigLoadingRules) Load() (*clientcmdapi.Config, error) {
config := clientcmdapi.NewConfig()
mergeConfigWithFile(config, rules.CommandLinePath)
mergeConfigWithFile(config, rules.EnvVarPath)
@ -67,7 +70,7 @@ func (rules *ClientConfigLoadingRules) Load() (*Config, error) {
return config, nil
}
func mergeConfigWithFile(startingConfig *Config, filename string) error {
func mergeConfigWithFile(startingConfig *clientcmdapi.Config, filename string) error {
if len(filename) == 0 {
// no work to do
return nil
@ -84,16 +87,15 @@ func mergeConfigWithFile(startingConfig *Config, filename string) error {
}
// LoadFromFile takes a filename and deserializes the contents into Config object
func LoadFromFile(filename string) (*Config, error) {
config := &Config{}
func LoadFromFile(filename string) (*clientcmdapi.Config, error) {
config := &clientcmdapi.Config{}
kubeconfigBytes, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
err = yaml.Unmarshal(kubeconfigBytes, &config)
if err != nil {
if err := clientcmdlatest.Codec.DecodeInto(kubeconfigBytes, config); err != nil {
return nil, err
}
@ -102,16 +104,20 @@ func LoadFromFile(filename string) (*Config, error) {
// WriteToFile serializes the config to yaml and writes it out to a file. If no present, it creates the file with 0644. If it is present
// it stomps the contents
func WriteToFile(config Config, filename string) error {
content, err := yaml.Marshal(config)
func WriteToFile(config clientcmdapi.Config, filename string) error {
json, err := clientcmdlatest.Codec.Encode(&config)
if err != nil {
return err
}
err = ioutil.WriteFile(filename, content, 0644)
content, err := yaml.JSONToYAML(json)
if err != nil {
return err
}
if err := ioutil.WriteFile(filename, content, 0644); err != nil {
return err
}
return nil
}

142
pkg/client/clientcmd/loader_test.go
View File

@ -21,47 +21,50 @@ import (
"io/ioutil"
"os"
"gopkg.in/v2/yaml"
"github.com/ghodss/yaml"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
clientcmdlatest "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api/latest"
)
var (
testConfigAlfa = Config{
AuthInfos: map[string]AuthInfo{
testConfigAlfa = clientcmdapi.Config{
AuthInfos: map[string]clientcmdapi.AuthInfo{
"red-user": {Token: "red-token"}},
Clusters: map[string]Cluster{
Clusters: map[string]clientcmdapi.Cluster{
"cow-cluster": {Server: "http://cow.org:8080"}},
Contexts: map[string]Context{
Contexts: map[string]clientcmdapi.Context{
"federal-context": {AuthInfo: "red-user", Cluster: "cow-cluster", Namespace: "hammer-ns"}},
}
testConfigBravo = Config{
AuthInfos: map[string]AuthInfo{
testConfigBravo = clientcmdapi.Config{
AuthInfos: map[string]clientcmdapi.AuthInfo{
"black-user": {Token: "black-token"}},
Clusters: map[string]Cluster{
Clusters: map[string]clientcmdapi.Cluster{
"pig-cluster": {Server: "http://pig.org:8080"}},
Contexts: map[string]Context{
Contexts: map[string]clientcmdapi.Context{
"queen-anne-context": {AuthInfo: "black-user", Cluster: "pig-cluster", Namespace: "saw-ns"}},
}
testConfigCharlie = Config{
AuthInfos: map[string]AuthInfo{
testConfigCharlie = clientcmdapi.Config{
AuthInfos: map[string]clientcmdapi.AuthInfo{
"green-user": {Token: "green-token"}},
Clusters: map[string]Cluster{
Clusters: map[string]clientcmdapi.Cluster{
"horse-cluster": {Server: "http://horse.org:8080"}},
Contexts: map[string]Context{
Contexts: map[string]clientcmdapi.Context{
"shaker-context": {AuthInfo: "green-user", Cluster: "horse-cluster", Namespace: "chisel-ns"}},
}
testConfigDelta = Config{
AuthInfos: map[string]AuthInfo{
testConfigDelta = clientcmdapi.Config{
AuthInfos: map[string]clientcmdapi.AuthInfo{
"blue-user": {Token: "blue-token"}},
Clusters: map[string]Cluster{
Clusters: map[string]clientcmdapi.Cluster{
"chicken-cluster": {Server: "http://chicken.org:8080"}},
Contexts: map[string]Context{
Contexts: map[string]clientcmdapi.Context{
"gothic-context": {AuthInfo: "blue-user", Cluster: "chicken-cluster", Namespace: "plane-ns"}},
}
testConfigConflictAlfa = Config{
AuthInfos: map[string]AuthInfo{
testConfigConflictAlfa = clientcmdapi.Config{
AuthInfos: map[string]clientcmdapi.AuthInfo{
"red-user": {Token: "a-different-red-token"},
"yellow-user": {Token: "yellow-token"}},
Clusters: map[string]Cluster{
Clusters: map[string]clientcmdapi.Cluster{
"cow-cluster": {Server: "http://a-different-cow.org:8080", InsecureSkipTLSVerify: true},
"donkey-cluster": {Server: "http://donkey.org:8080", InsecureSkipTLSVerify: true}},
CurrentContext: "federal-context",
@ -84,31 +87,42 @@ func ExampleMergingSomeWithConflict() {
mergedConfig, err := loadingRules.Load()
output, err := yaml.Marshal(mergedConfig)
json, err := clientcmdlatest.Codec.Encode(mergedConfig)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
output, err := yaml.JSONToYAML(json)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
fmt.Printf("%v", string(output))
// Output:
// preferences: {}
// apiVersion: v1
// clusters:
// cow-cluster:
// - cluster:
// server: http://cow.org:8080
// donkey-cluster:
// server: http://donkey.org:8080
// name: cow-cluster
// - cluster:
// insecure-skip-tls-verify: true
// users:
// red-user:
// token: red-token
// yellow-user:
// token: yellow-token
// server: http://donkey.org:8080
// name: donkey-cluster
// contexts:
// federal-context:
// - context:
// cluster: cow-cluster
// user: red-user
// namespace: hammer-ns
// user: red-user
// name: federal-context
// current-context: federal-context
// kind: Config
// preferences: {}
// users:
// - name: red-user
// user:
// token: red-token
// - name: yellow-user
// user:
// token: yellow-token
}
func ExampleMergingEverythingNoConflicts() {
@ -135,48 +149,66 @@ func ExampleMergingEverythingNoConflicts() {
mergedConfig, err := loadingRules.Load()
output, err := yaml.Marshal(mergedConfig)
json, err := clientcmdlatest.Codec.Encode(mergedConfig)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
output, err := yaml.JSONToYAML(json)
if err != nil {
fmt.Printf("Unexpected error: %v", err)
}
fmt.Printf("%v", string(output))
// Output:
// preferences: {}
// apiVersion: v1
// clusters:
// chicken-cluster:
// - cluster:
// server: http://chicken.org:8080
// cow-cluster:
// name: chicken-cluster
// - cluster:
// server: http://cow.org:8080
// horse-cluster:
// name: cow-cluster
// - cluster:
// server: http://horse.org:8080
// pig-cluster:
// name: horse-cluster
// - cluster:
// server: http://pig.org:8080
// users:
// black-user:
// token: black-token
// blue-user:
// token: blue-token
// green-user:
// token: green-token
// red-user:
// token: red-token
// name: pig-cluster
// contexts:
// federal-context:
// - context:
// cluster: cow-cluster
// user: red-user
// namespace: hammer-ns
// gothic-context:
// user: red-user
// name: federal-context
// - context:
// cluster: chicken-cluster
// user: blue-user
// namespace: plane-ns
// queen-anne-context:
// user: blue-user
// name: gothic-context
// - context:
// cluster: pig-cluster
// user: black-user
// namespace: saw-ns
// shaker-context:
// user: black-user
// name: queen-anne-context
// - context:
// cluster: horse-cluster
// user: green-user
// namespace: chisel-ns
// user: green-user
// name: shaker-context
// current-context: ""
// kind: Config
// preferences: {}
// users:
// - name: black-user
// user:
// token: black-token
// - name: blue-user
// user:
// token: blue-token
// - name: green-user
// user:
// token: green-token
// - name: red-user
// user:
// token: red-token
}

10
pkg/client/clientcmd/merged_client_builder.go
View File

@ -20,6 +20,7 @@ import (
"io"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
// DeferredLoadingClientConfig is a ClientConfig interface that is backed by a set of loading rules
@ -59,6 +60,15 @@ func (config DeferredLoadingClientConfig) createClientConfig() (ClientConfig, er
return mergedClientConfig, 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() (*client.Config, error) {
mergedClientConfig, err := config.createClientConfig()

2
pkg/client/clientcmd/merged_client_builder_test.go
View File

@ -85,7 +85,7 @@ func testBindClientConfig(cmd *cobra.Command) ClientConfig {
cmd.PersistentFlags().StringVar(&loadingRules.CommandLinePath, "kubeconfig", "", "Path to the kubeconfig file to use for CLI requests.")
overrides := &ConfigOverrides{}
overrides.BindFlags(cmd.PersistentFlags(), RecommendedConfigOverrideFlags(""))
BindOverrideFlags(overrides, cmd.PersistentFlags(), RecommendedConfigOverrideFlags(""))
clientConfig := NewInteractiveDeferredLoadingClientConfig(loadingRules, overrides, os.Stdin)
return clientConfig

22
pkg/client/clientcmd/overrides.go
View File

@ -18,13 +18,15 @@ package clientcmd
import (
"github.com/spf13/pflag"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/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 AuthInfo
ClusterInfo Cluster
AuthInfo clientcmdapi.AuthInfo
ClusterInfo clientcmdapi.Cluster
Namespace string
CurrentContext string
ClusterName string
@ -105,8 +107,8 @@ func RecommendedConfigOverrideFlags(prefix string) ConfigOverrideFlags {
}
}
// BindFlags is a convenience method to bind the specified flags to their associated variables
func (authInfo *AuthInfo) BindFlags(flags *pflag.FlagSet, flagNames AuthOverrideFlags) {
// BindAuthInfoFlags is a convenience method to bind the specified flags to their associated variables
func BindAuthInfoFlags(authInfo *clientcmdapi.AuthInfo, flags *pflag.FlagSet, flagNames AuthOverrideFlags) {
// TODO short flag names are impossible to prefix, decide whether to keep them or not
flags.StringVarP(&authInfo.AuthPath, flagNames.AuthPath, "a", "", "Path to the auth info file. If missing, prompt the user. Only used if using https.")
flags.StringVar(&authInfo.ClientCertificate, flagNames.ClientCertificate, "", "Path to a client key file for TLS.")
@ -114,8 +116,8 @@ func (authInfo *AuthInfo) BindFlags(flags *pflag.FlagSet, flagNames AuthOverride
flags.StringVar(&authInfo.Token, flagNames.Token, "", "Bearer token for authentication to the API server.")
}
// BindFlags is a convenience method to bind the specified flags to their associated variables
func (clusterInfo *Cluster) BindFlags(flags *pflag.FlagSet, flagNames ClusterOverrideFlags) {
// BindClusterFlags is a convenience method to bind the specified flags to their associated variables
func BindClusterFlags(clusterInfo *clientcmdapi.Cluster, flags *pflag.FlagSet, flagNames ClusterOverrideFlags) {
// TODO short flag names are impossible to prefix, decide whether to keep them or not
flags.StringVarP(&clusterInfo.Server, flagNames.APIServer, "s", "", "The address of the Kubernetes API server")
flags.StringVar(&clusterInfo.APIVersion, flagNames.APIVersion, "", "The API version to use when talking to the server")
@ -123,10 +125,10 @@ func (clusterInfo *Cluster) BindFlags(flags *pflag.FlagSet, flagNames ClusterOve
flags.BoolVar(&clusterInfo.InsecureSkipTLSVerify, flagNames.InsecureSkipTLSVerify, false, "If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure.")
}
// BindFlags is a convenience method to bind the specified flags to their associated variables
func (overrides *ConfigOverrides) BindFlags(flags *pflag.FlagSet, flagNames ConfigOverrideFlags) {
(&overrides.AuthInfo).BindFlags(flags, flagNames.AuthOverrideFlags)
(&overrides.ClusterInfo).BindFlags(flags, flagNames.ClusterOverrideFlags)
// 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)
// TODO not integrated yet
// flags.StringVar(&overrides.Namespace, flagNames.Namespace, "", "If present, the namespace scope for this CLI request.")
flags.StringVar(&overrides.CurrentContext, flagNames.CurrentContext, "", "The name of the kubeconfig context to use")

83
pkg/client/clientcmd/types.go
View File

@ -1,83 +0,0 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 ()
// Where possible, yaml 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 {
// Preferences holds general information to be use for cli interactions
Preferences Preferences `yaml:"preferences"`
// Clusters is a map of referencable names to cluster configs
Clusters map[string]Cluster `yaml:"clusters"`
// AuthInfos is a map of referencable names to user configs
AuthInfos map[string]AuthInfo `yaml:"users"`
// Contexts is a map of referencable names to context configs
Contexts map[string]Context `yaml:"contexts"`
// CurrentContext is the name of the context that you would like to use by default
CurrentContext string `yaml:"current-context"`
}
type Preferences struct {
Colors bool `yaml:"colors,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 `yaml:"server"`
// APIVersion is the preferred api version for communicating with the kubernetes cluster (v1beta1, v1beta2, v1beta3, etc).
APIVersion string `yaml:"api-version,omitempty"`
// InsecureSkipTLSVerify skips the validity check for the server's certificate. This will make your HTTPS connections insecure.
InsecureSkipTLSVerify bool `yaml:"insecure-skip-tls-verify,omitempty"`
// CertificateAuthority is the path to a cert file for the certificate authority.
CertificateAuthority string `yaml:"certificate-authority,omitempty"`
}
// AuthInfo contains information that describes identity information. This is use to tell the kubernetes cluster who you are.
type AuthInfo struct {
// AuthPath is the path to a kubernetes auth file (~/.kubernetes_auth). If you provide an AuthPath, the other options specified are ignored
AuthPath string `yaml:"auth-path,omitempty"`
// ClientCertificate is the path to a client cert file for TLS.
ClientCertificate string `yaml:"client-certificate,omitempty"`
// ClientKey is the path to a client key file for TLS.
ClientKey string `yaml:"client-key,omitempty"`
// Token is the bearer token for authentication to the kubernetes cluster.
Token string `yaml:"token,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 `yaml:"cluster"`
// AuthInfo is the name of the authInfo for this context
AuthInfo string `yaml:"user"`
// Namespace is the default namespace to use on unspecified requests
Namespace string `yaml:"namespace,omitempty"`
}
// NewConfig is a convenience function that returns a new Config object with non-nil maps
func NewConfig() *Config {
return &Config{
Clusters: make(map[string]Cluster),
AuthInfos: make(map[string]AuthInfo),
Contexts: make(map[string]Context),
}
}

11
pkg/client/clientcmd/validation.go
View File

@ -22,6 +22,7 @@ import (
"os"
"strings"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
utilerrors "github.com/GoogleCloudPlatform/kubernetes/pkg/util/errors"
)
@ -47,7 +48,7 @@ func IsContextNotFound(err error) bool {
}
// 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 Config) error {
func Validate(config clientcmdapi.Config) error {
validationErrors := make([]error, 0)
if len(config.CurrentContext) != 0 {
@ -73,7 +74,7 @@ func Validate(config Config) error {
// 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 Config, passedContextName string) error {
func ConfirmUsable(config clientcmdapi.Config, passedContextName string) error {
validationErrors := make([]error, 0)
var contextName string
@ -102,7 +103,7 @@ func ConfirmUsable(config Config, passedContextName string) error {
}
// validateClusterInfo looks for conflicts and errors in the cluster info
func validateClusterInfo(clusterName string, clusterInfo Cluster) []error {
func validateClusterInfo(clusterName string, clusterInfo clientcmdapi.Cluster) []error {
validationErrors := make([]error, 0)
if len(clusterInfo.Server) == 0 {
@ -120,7 +121,7 @@ func validateClusterInfo(clusterName string, clusterInfo Cluster) []error {
}
// validateAuthInfo looks for conflicts and errors in the auth info
func validateAuthInfo(authInfoName string, authInfo AuthInfo) []error {
func validateAuthInfo(authInfoName string, authInfo clientcmdapi.AuthInfo) []error {
validationErrors := make([]error, 0)
usingAuthPath := false
@ -163,7 +164,7 @@ func validateAuthInfo(authInfoName string, authInfo AuthInfo) []error {
}
// 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 Context, config Config) []error {
func validateContext(contextName string, context clientcmdapi.Context, config clientcmdapi.Config) []error {
validationErrors := make([]error, 0)
if len(context.AuthInfo) == 0 {

83
pkg/client/clientcmd/validation_test.go
View File

@ -22,30 +22,31 @@ import (
"strings"
"testing"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util/errors"
)
func TestConfirmUsableBadInfoButOkConfig(t *testing.T) {
config := NewConfig()
config.Clusters["missing ca"] = Cluster{
config := clientcmdapi.NewConfig()
config.Clusters["missing ca"] = clientcmdapi.Cluster{
Server: "anything",
CertificateAuthority: "missing",
}
config.AuthInfos["error"] = AuthInfo{
config.AuthInfos["error"] = clientcmdapi.AuthInfo{
AuthPath: "anything",
Token: "here",
}
config.Contexts["dirty"] = Context{
config.Contexts["dirty"] = clientcmdapi.Context{
Cluster: "missing ca",
AuthInfo: "error",
}
config.Clusters["clean"] = Cluster{
config.Clusters["clean"] = clientcmdapi.Cluster{
Server: "anything",
}
config.AuthInfos["clean"] = AuthInfo{
config.AuthInfos["clean"] = clientcmdapi.AuthInfo{
Token: "here",
}
config.Contexts["clean"] = Context{
config.Contexts["clean"] = clientcmdapi.Context{
Cluster: "clean",
AuthInfo: "clean",
}
@ -62,16 +63,16 @@ func TestConfirmUsableBadInfoButOkConfig(t *testing.T) {
badValidation.testConfig(t)
}
func TestConfirmUsableBadInfoConfig(t *testing.T) {
config := NewConfig()
config.Clusters["missing ca"] = Cluster{
config := clientcmdapi.NewConfig()
config.Clusters["missing ca"] = clientcmdapi.Cluster{
Server: "anything",
CertificateAuthority: "missing",
}
config.AuthInfos["error"] = AuthInfo{
config.AuthInfos["error"] = clientcmdapi.AuthInfo{
AuthPath: "anything",
Token: "here",
}
config.Contexts["first"] = Context{
config.Contexts["first"] = clientcmdapi.Context{
Cluster: "missing ca",
AuthInfo: "error",
}
@ -83,7 +84,7 @@ func TestConfirmUsableBadInfoConfig(t *testing.T) {
test.testConfirmUsable("first", t)
}
func TestConfirmUsableEmptyConfig(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
test := configValidationTest{
config: config,
expectedErrorSubstring: []string{"no context chosen"},
@ -92,7 +93,7 @@ func TestConfirmUsableEmptyConfig(t *testing.T) {
test.testConfirmUsable("", t)
}
func TestConfirmUsableMissingConfig(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
test := configValidationTest{
config: config,
expectedErrorSubstring: []string{"context was not found for"},
@ -101,7 +102,7 @@ func TestConfirmUsableMissingConfig(t *testing.T) {
test.testConfirmUsable("not-here", t)
}
func TestValidateEmptyConfig(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
test := configValidationTest{
config: config,
}
@ -109,7 +110,7 @@ func TestValidateEmptyConfig(t *testing.T) {
test.testConfig(t)
}
func TestValidateMissingCurrentContextConfig(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
config.CurrentContext = "anything"
test := configValidationTest{
config: config,
@ -119,7 +120,7 @@ func TestValidateMissingCurrentContextConfig(t *testing.T) {
test.testConfig(t)
}
func TestIsContextNotFound(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
config.CurrentContext = "anything"
err := Validate(*config)
@ -128,9 +129,9 @@ func TestIsContextNotFound(t *testing.T) {
}
}
func TestValidateMissingReferencesConfig(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
config.CurrentContext = "anything"
config.Contexts["anything"] = Context{Cluster: "missing", AuthInfo: "missing"}
config.Contexts["anything"] = clientcmdapi.Context{Cluster: "missing", AuthInfo: "missing"}
test := configValidationTest{
config: config,
expectedErrorSubstring: []string{"user, missing, was not found for Context anything", "cluster, missing, was not found for Context anything"},
@ -140,9 +141,9 @@ func TestValidateMissingReferencesConfig(t *testing.T) {
test.testConfig(t)
}
func TestValidateEmptyContext(t *testing.T) {
config := NewConfig()
config := clientcmdapi.NewConfig()
config.CurrentContext = "anything"
config.Contexts["anything"] = Context{}
config.Contexts["anything"] = clientcmdapi.Context{}
test := configValidationTest{
config: config,
expectedErrorSubstring: []string{"user was not specified for Context anything", "cluster was not specified for Context anything"},
@ -153,8 +154,8 @@ func TestValidateEmptyContext(t *testing.T) {
}
func TestValidateEmptyClusterInfo(t *testing.T) {
config := NewConfig()
config.Clusters["empty"] = Cluster{}
config := clientcmdapi.NewConfig()
config.Clusters["empty"] = clientcmdapi.Cluster{}
test := configValidationTest{
config: config,
expectedErrorSubstring: []string{"no server found for"},
@ -164,8 +165,8 @@ func TestValidateEmptyClusterInfo(t *testing.T) {
test.testConfig(t)
}
func TestValidateMissingCAFileClusterInfo(t *testing.T) {
config := NewConfig()
config.Clusters["missing ca"] = Cluster{
config := clientcmdapi.NewConfig()
config.Clusters["missing ca"] = clientcmdapi.Cluster{
Server: "anything",
CertificateAuthority: "missing",
}
@ -178,8 +179,8 @@ func TestValidateMissingCAFileClusterInfo(t *testing.T) {
test.testConfig(t)
}
func TestValidateCleanClusterInfo(t *testing.T) {
config := NewConfig()
config.Clusters["clean"] = Cluster{
config := clientcmdapi.NewConfig()
config.Clusters["clean"] = clientcmdapi.Cluster{
Server: "anything",
}
test := configValidationTest{
@ -193,8 +194,8 @@ func TestValidateCleanWithCAClusterInfo(t *testing.T) {
tempFile, _ := ioutil.TempFile("", "")
defer os.Remove(tempFile.Name())
config := NewConfig()
config.Clusters["clean"] = Cluster{
config := clientcmdapi.NewConfig()
config.Clusters["clean"] = clientcmdapi.Cluster{
Server: "anything",
CertificateAuthority: tempFile.Name(),
}
@ -207,8 +208,8 @@ func TestValidateCleanWithCAClusterInfo(t *testing.T) {
}
func TestValidateEmptyAuthInfo(t *testing.T) {
config := NewConfig()
config.AuthInfos["error"] = AuthInfo{}
config := clientcmdapi.NewConfig()
config.AuthInfos["error"] = clientcmdapi.AuthInfo{}
test := configValidationTest{
config: config,
}
@ -217,8 +218,8 @@ func TestValidateEmptyAuthInfo(t *testing.T) {
test.testConfig(t)
}
func TestValidatePathNotFoundAuthInfo(t *testing.T) {
config := NewConfig()
config.AuthInfos["error"] = AuthInfo{
config := clientcmdapi.NewConfig()
config.AuthInfos["error"] = clientcmdapi.AuthInfo{
AuthPath: "missing",
}
test := configValidationTest{
@ -230,8 +231,8 @@ func TestValidatePathNotFoundAuthInfo(t *testing.T) {
test.testConfig(t)
}
func TestValidateCertFilesNotFoundAuthInfo(t *testing.T) {
config := NewConfig()
config.AuthInfos["error"] = AuthInfo{
config := clientcmdapi.NewConfig()
config.AuthInfos["error"] = clientcmdapi.AuthInfo{
ClientCertificate: "missing",
ClientKey: "missing",
}
@ -247,8 +248,8 @@ func TestValidateCleanCertFilesAuthInfo(t *testing.T) {
tempFile, _ := ioutil.TempFile("", "")
defer os.Remove(tempFile.Name())
config := NewConfig()
config.AuthInfos["clean"] = AuthInfo{
config := clientcmdapi.NewConfig()
config.AuthInfos["clean"] = clientcmdapi.AuthInfo{
ClientCertificate: tempFile.Name(),
ClientKey: tempFile.Name(),
}
@ -263,8 +264,8 @@ func TestValidateCleanPathAuthInfo(t *testing.T) {
tempFile, _ := ioutil.TempFile("", "")
defer os.Remove(tempFile.Name())
config := NewConfig()
config.AuthInfos["clean"] = AuthInfo{
config := clientcmdapi.NewConfig()
config.AuthInfos["clean"] = clientcmdapi.AuthInfo{
AuthPath: tempFile.Name(),
}
test := configValidationTest{
@ -275,8 +276,8 @@ func TestValidateCleanPathAuthInfo(t *testing.T) {
test.testConfig(t)
}
func TestValidateCleanTokenAuthInfo(t *testing.T) {
config := NewConfig()
config.AuthInfos["clean"] = AuthInfo{
config := clientcmdapi.NewConfig()
config.AuthInfos["clean"] = clientcmdapi.AuthInfo{
Token: "any-value",
}
test := configValidationTest{
@ -288,7 +289,7 @@ func TestValidateCleanTokenAuthInfo(t *testing.T) {
}
type configValidationTest struct {
config *Config
config *clientcmdapi.Config
expectedErrorSubstring []string
}

4
pkg/kubectl/cmd/cmd.go
View File

@ -28,6 +28,7 @@ import (
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
cmdconfig "github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd/config"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/resource"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
@ -168,6 +169,7 @@ Find more information at https://github.com/GoogleCloudPlatform/kubernetes.`,
cmds.AddCommand(f.NewCmdUpdate(out))
cmds.AddCommand(f.NewCmdDelete(out))
cmds.AddCommand(cmdconfig.NewCmdConfig(out))
cmds.AddCommand(NewCmdNamespace(out))
cmds.AddCommand(f.NewCmdLog(out))
cmds.AddCommand(f.NewCmdRollingUpdate(out))
@ -213,7 +215,7 @@ func DefaultClientConfig(flags *pflag.FlagSet) clientcmd.ClientConfig {
flags.StringVar(&loadingRules.CommandLinePath, "kubeconfig", "", "Path to the kubeconfig file to use for CLI requests.")
overrides := &clientcmd.ConfigOverrides{}
overrides.BindFlags(flags, clientcmd.RecommendedConfigOverrideFlags(""))
clientcmd.BindOverrideFlags(overrides, flags, clientcmd.RecommendedConfigOverrideFlags(""))
clientConfig := clientcmd.NewInteractiveDeferredLoadingClientConfig(loadingRules, overrides, os.Stdin)
return clientConfig

111
pkg/kubectl/cmd/config/config.go Normal file
View File

@ -0,0 +1,111 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"io"
"os"
"strconv"
"github.com/golang/glog"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
type pathOptions struct {
local bool
global bool
specifiedFile string
}
func NewCmdConfig(out io.Writer) *cobra.Command {
pathOptions := &pathOptions{}
cmd := &cobra.Command{
Use: "config <subcommand>",
Short: "config modifies .kubeconfig files",
Long: `config modifies .kubeconfig files using subcommands like "kubectl config set current-context my-context"`,
Run: func(cmd *cobra.Command, args []string) {
cmd.Help()
},
}
// file paths are common to all sub commands
cmd.PersistentFlags().BoolVar(&pathOptions.local, "local", true, "use the .kubeconfig in the currect directory")
cmd.PersistentFlags().BoolVar(&pathOptions.global, "global", false, "use the .kubeconfig from "+os.Getenv("HOME"))
cmd.PersistentFlags().StringVar(&pathOptions.specifiedFile, "kubeconfig", "", "use a particular .kubeconfig file")
cmd.AddCommand(NewCmdConfigView(out, pathOptions))
cmd.AddCommand(NewCmdConfigSetCluster(out, pathOptions))
cmd.AddCommand(NewCmdConfigSetAuthInfo(out, pathOptions))
cmd.AddCommand(NewCmdConfigSetContext(out, pathOptions))
cmd.AddCommand(NewCmdConfigSet(out, pathOptions))
cmd.AddCommand(NewCmdConfigUnset(out, pathOptions))
cmd.AddCommand(NewCmdConfigUseContext(out, pathOptions))
return cmd
}
func (o *pathOptions) getStartingConfig() (*clientcmdapi.Config, string, error) {
filename := ""
config := clientcmdapi.NewConfig()
switch {
case o.global:
filename = os.Getenv("HOME") + "/.kube/.kubeconfig"
config = getConfigFromFileOrDie(filename)
case len(o.specifiedFile) > 0:
filename = o.specifiedFile
config = getConfigFromFileOrDie(filename)
case o.local:
filename = ".kubeconfig"
config = getConfigFromFileOrDie(filename)
}
return config, filename, 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 {
var err error
config, err := clientcmd.LoadFromFile(filename)
if err != nil && !os.IsNotExist(err) {
glog.FatalDepth(1, err)
}
if config == nil {
config = clientcmdapi.NewConfig()
}
return config
}
func toBool(propertyValue string) (bool, error) {
boolValue := false
if len(propertyValue) != 0 {
var err error
boolValue, err = strconv.ParseBool(propertyValue)
if err != nil {
return false, err
}
}
return boolValue, nil
}

374
pkg/kubectl/cmd/config/config_test.go Normal file
View File

@ -0,0 +1,374 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"bytes"
"io/ioutil"
"os"
"reflect"
"testing"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
)
func newRedFederalCowHammerConfig() clientcmdapi.Config {
return clientcmdapi.Config{
AuthInfos: map[string]clientcmdapi.AuthInfo{
"red-user": {Token: "red-token"}},
Clusters: map[string]clientcmdapi.Cluster{
"cow-cluster": {Server: "http://cow.org:8080"}},
Contexts: map[string]clientcmdapi.Context{
"federal-context": {AuthInfo: "red-user", Cluster: "cow-cluster", Namespace: "hammer-ns"}},
}
}
type configCommandTest struct {
args []string
startingConfig clientcmdapi.Config
expectedConfig clientcmdapi.Config
}
func TestSetCurrentContext(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
expectedConfig.CurrentContext = "the-new-context"
test := configCommandTest{
args: []string{"use-context", "the-new-context"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestSetIntoExistingStruct(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
a := expectedConfig.AuthInfos["red-user"]
authInfo := &a
authInfo.AuthPath = "new-path-value"
expectedConfig.AuthInfos["red-user"] = *authInfo
test := configCommandTest{
args: []string{"set", "users.red-user.auth-path", "new-path-value"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestUnsetStruct(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
delete(expectedConfig.AuthInfos, "red-user")
test := configCommandTest{
args: []string{"unset", "users.red-user"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestUnsetField(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
expectedConfig.AuthInfos["red-user"] = *clientcmdapi.NewAuthInfo()
test := configCommandTest{
args: []string{"unset", "users.red-user.token"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestSetIntoNewStruct(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
cluster := clientcmdapi.NewCluster()
cluster.Server = "new-server-value"
expectedConfig.Clusters["big-cluster"] = *cluster
test := configCommandTest{
args: []string{"set", "clusters.big-cluster.server", "new-server-value"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestSetBoolean(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
cluster := clientcmdapi.NewCluster()
cluster.InsecureSkipTLSVerify = true
expectedConfig.Clusters["big-cluster"] = *cluster
test := configCommandTest{
args: []string{"set", "clusters.big-cluster.insecure-skip-tls-verify", "true"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestSetIntoNewConfig(t *testing.T) {
expectedConfig := *clientcmdapi.NewConfig()
context := clientcmdapi.NewContext()
context.AuthInfo = "fake-user"
expectedConfig.Contexts["new-context"] = *context
test := configCommandTest{
args: []string{"set", "contexts.new-context.user", "fake-user"},
startingConfig: *clientcmdapi.NewConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestNewEmptyAuth(t *testing.T) {
expectedConfig := *clientcmdapi.NewConfig()
expectedConfig.AuthInfos["the-user-name"] = *clientcmdapi.NewAuthInfo()
test := configCommandTest{
args: []string{"set-credentials", "the-user-name"},
startingConfig: *clientcmdapi.NewConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestAdditionalAuth(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
authInfo := clientcmdapi.NewAuthInfo()
authInfo.AuthPath = "auth-path"
authInfo.ClientKey = "client-key"
authInfo.Token = "token"
expectedConfig.AuthInfos["another-user"] = *authInfo
test := configCommandTest{
args: []string{"set-credentials", "another-user", "--" + clientcmd.FlagAuthPath + "=auth-path", "--" + clientcmd.FlagKeyFile + "=client-key", "--" + clientcmd.FlagBearerToken + "=token"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestOverwriteExistingAuth(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
authInfo := clientcmdapi.NewAuthInfo()
authInfo.AuthPath = "auth-path"
expectedConfig.AuthInfos["red-user"] = *authInfo
test := configCommandTest{
args: []string{"set-credentials", "red-user", "--" + clientcmd.FlagAuthPath + "=auth-path"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestNewEmptyCluster(t *testing.T) {
expectedConfig := *clientcmdapi.NewConfig()
expectedConfig.Clusters["new-cluster"] = *clientcmdapi.NewCluster()
test := configCommandTest{
args: []string{"set-cluster", "new-cluster"},
startingConfig: *clientcmdapi.NewConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestAdditionalCluster(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
cluster := *clientcmdapi.NewCluster()
cluster.APIVersion = "v1beta1"
cluster.CertificateAuthority = "ca-location"
cluster.InsecureSkipTLSVerify = true
cluster.Server = "serverlocation"
expectedConfig.Clusters["different-cluster"] = cluster
test := configCommandTest{
args: []string{"set-cluster", "different-cluster", "--" + clientcmd.FlagAPIServer + "=serverlocation", "--" + clientcmd.FlagInsecure + "=true", "--" + clientcmd.FlagCAFile + "=ca-location", "--" + clientcmd.FlagAPIVersion + "=v1beta1"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestOverwriteExistingCluster(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
cluster := *clientcmdapi.NewCluster()
cluster.Server = "serverlocation"
expectedConfig.Clusters["cow-cluster"] = cluster
test := configCommandTest{
args: []string{"set-cluster", "cow-cluster", "--" + clientcmd.FlagAPIServer + "=serverlocation"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestNewEmptyContext(t *testing.T) {
expectedConfig := *clientcmdapi.NewConfig()
expectedConfig.Contexts["new-context"] = *clientcmdapi.NewContext()
test := configCommandTest{
args: []string{"set-context", "new-context"},
startingConfig: *clientcmdapi.NewConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestAdditionalContext(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
context := *clientcmdapi.NewContext()
context.Cluster = "some-cluster"
context.AuthInfo = "some-user"
context.Namespace = "different-namespace"
expectedConfig.Contexts["different-context"] = context
test := configCommandTest{
args: []string{"set-context", "different-context", "--" + clientcmd.FlagClusterName + "=some-cluster", "--" + clientcmd.FlagAuthInfoName + "=some-user", "--" + clientcmd.FlagNamespace + "=different-namespace"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestOverwriteExistingContext(t *testing.T) {
expectedConfig := newRedFederalCowHammerConfig()
context := *clientcmdapi.NewContext()
context.Cluster = "clustername"
expectedConfig.Contexts["federal-context"] = context
test := configCommandTest{
args: []string{"set-context", "federal-context", "--" + clientcmd.FlagClusterName + "=clustername"},
startingConfig: newRedFederalCowHammerConfig(),
expectedConfig: expectedConfig,
}
test.run(t)
}
func TestToBool(t *testing.T) {
type test struct {
in string
out bool
err string
}
tests := []test{
{"", false, ""},
{"true", true, ""},
{"on", false, `strconv.ParseBool: parsing "on": invalid syntax`},
}
for _, curr := range tests {
b, err := toBool(curr.in)
if (len(curr.err) != 0) && err == nil {
t.Errorf("Expected error: %v, but got nil", curr.err)
}
if (len(curr.err) == 0) && err != nil {
t.Errorf("Unexpected error: %v", err)
}
if (err != nil) && (err.Error() != curr.err) {
t.Errorf("Expected %v, got %v", curr.err, err)
}
if b != curr.out {
t.Errorf("Expected %v, got %v", curr.out, b)
}
}
}
func testConfigCommand(args []string, startingConfig clientcmdapi.Config) (string, clientcmdapi.Config) {
fakeKubeFile, _ := ioutil.TempFile("", "")
defer os.Remove(fakeKubeFile.Name())
clientcmd.WriteToFile(startingConfig, fakeKubeFile.Name())
argsToUse := make([]string, 0, 2+len(args))
argsToUse = append(argsToUse, "--kubeconfig="+fakeKubeFile.Name())
argsToUse = append(argsToUse, args...)
buf := bytes.NewBuffer([]byte{})
cmd := NewCmdConfig(buf)
cmd.SetArgs(argsToUse)
cmd.Execute()
// outBytes, _ := ioutil.ReadFile(fakeKubeFile.Name())
config := getConfigFromFileOrDie(fakeKubeFile.Name())
return buf.String(), *config
}
func (test configCommandTest) run(t *testing.T) {
_, actualConfig := testConfigCommand(test.args, test.startingConfig)
testSetNilMapsToEmpties(reflect.ValueOf(&test.expectedConfig))
testSetNilMapsToEmpties(reflect.ValueOf(&actualConfig))
if !reflect.DeepEqual(test.expectedConfig, actualConfig) {
t.Errorf("diff: %v", util.ObjectDiff(test.expectedConfig, actualConfig))
t.Errorf("expected: %#v\n actual: %#v", test.expectedConfig, actualConfig)
}
}
func testSetNilMapsToEmpties(curr reflect.Value) {
actualCurrValue := curr
if curr.Kind() == reflect.Ptr {
actualCurrValue = curr.Elem()
}
switch actualCurrValue.Kind() {
case reflect.Map:
for _, mapKey := range actualCurrValue.MapKeys() {
currMapValue := actualCurrValue.MapIndex(mapKey)
// our maps do not hold pointers to structs, they hold the structs themselves. This means that MapIndex returns the struct itself
// That in turn means that they have kinds of type.Struct, which is not a settable type. Because of this, we need to make new struct of that type
// copy all the data from the old value into the new value, then take the .addr of the new value to modify it in the next recursion.
// clear as mud
modifiableMapValue := reflect.New(currMapValue.Type()).Elem()
modifiableMapValue.Set(currMapValue)
if modifiableMapValue.Kind() == reflect.Struct {
modifiableMapValue = modifiableMapValue.Addr()
}
testSetNilMapsToEmpties(modifiableMapValue)
actualCurrValue.SetMapIndex(mapKey, reflect.Indirect(modifiableMapValue))
}
case reflect.Struct:
for fieldIndex := 0; fieldIndex < actualCurrValue.NumField(); fieldIndex++ {
currFieldValue := actualCurrValue.Field(fieldIndex)
if currFieldValue.Kind() == reflect.Map && currFieldValue.IsNil() {
newValue := reflect.MakeMap(currFieldValue.Type())
currFieldValue.Set(newValue)
} else {
testSetNilMapsToEmpties(currFieldValue.Addr())
}
}
}
}

120
pkg/kubectl/cmd/config/create_authinfo.go Normal file
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/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
type createAuthInfoOptions struct {
pathOptions *pathOptions
name string
authPath string
clientCertificate string
clientKey string
token string
}
func NewCmdConfigSetAuthInfo(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &createAuthInfoOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "set-credentials name",
Short: "Sets a user entry in .kubeconfig",
Long: `Sets a user entry in .kubeconfig
Specifying a name that already exists overwrites that user entry.
`,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
cmd.Flags().StringVar(&options.authPath, clientcmd.FlagAuthPath, "", clientcmd.FlagAuthPath+" for the user entry in .kubeconfig")
cmd.Flags().StringVar(&options.clientCertificate, clientcmd.FlagCertFile, "", clientcmd.FlagCertFile+" for the user entry in .kubeconfig")
cmd.Flags().StringVar(&options.clientKey, clientcmd.FlagKeyFile, "", clientcmd.FlagKeyFile+" for the user entry in .kubeconfig")
cmd.Flags().StringVar(&options.token, clientcmd.FlagBearerToken, "", clientcmd.FlagBearerToken+" for the user entry in .kubeconfig")
return cmd
}
func (o createAuthInfoOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, filename, err := o.pathOptions.getStartingConfig()
if err != nil {
return err
}
authInfo := o.authInfo()
config.AuthInfos[o.name] = authInfo
err = clientcmd.WriteToFile(*config, filename)
if err != nil {
return err
}
return nil
}
// authInfo builds an AuthInfo object from the options
func (o *createAuthInfoOptions) authInfo() clientcmdapi.AuthInfo {
authInfo := clientcmdapi.AuthInfo{
AuthPath: o.authPath,
ClientCertificate: o.clientCertificate,
ClientKey: o.clientKey,
Token: o.token,
}
return authInfo
}
func (o *createAuthInfoOptions) complete(cmd *cobra.Command) bool {
args := cmd.Flags().Args()
if len(args) != 1 {
cmd.Help()
return false
}
o.name = args[0]
return true
}
func (o createAuthInfoOptions) validate() error {
if len(o.name) == 0 {
return errors.New("You must specify a non-empty user name")
}
return nil
}

124
pkg/kubectl/cmd/config/create_cluster.go Normal file
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/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
type createClusterOptions struct {
pathOptions *pathOptions
name string
server string
apiVersion string
insecureSkipTLSVerify bool
certificateAuthority string
}
func NewCmdConfigSetCluster(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &createClusterOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "set-cluster name [server] [insecure-skip-tls-verify] [certificate-authority] [api-version]",
Short: "Sets a cluster entry in .kubeconfig",
Long: `Sets a cluster entry in .kubeconfig
Specifying a name that already exists overwrites that cluster entry.
`,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
cmd.Flags().StringVar(&options.server, clientcmd.FlagAPIServer, "", clientcmd.FlagAPIServer+" for the cluster entry in .kubeconfig")
cmd.Flags().StringVar(&options.apiVersion, clientcmd.FlagAPIVersion, "", clientcmd.FlagAPIVersion+" for the cluster entry in .kubeconfig")
cmd.Flags().BoolVar(&options.insecureSkipTLSVerify, clientcmd.FlagInsecure, false, clientcmd.FlagInsecure+" for the cluster entry in .kubeconfig")
cmd.Flags().StringVar(&options.certificateAuthority, clientcmd.FlagCAFile, "", clientcmd.FlagCAFile+" for the cluster entry in .kubeconfig")
return cmd
}
func (o createClusterOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, filename, err := o.pathOptions.getStartingConfig()
if err != nil {
return err
}
if config.Clusters == nil {
config.Clusters = make(map[string]clientcmdapi.Cluster)
}
cluster := o.cluster()
config.Clusters[o.name] = cluster
err = clientcmd.WriteToFile(*config, filename)
if err != nil {
return err
}
return nil
}
// cluster builds a Cluster object from the options
func (o *createClusterOptions) cluster() clientcmdapi.Cluster {
cluster := clientcmdapi.Cluster{
Server: o.server,
APIVersion: o.apiVersion,
InsecureSkipTLSVerify: o.insecureSkipTLSVerify,
CertificateAuthority: o.certificateAuthority,
}
return cluster
}
func (o *createClusterOptions) complete(cmd *cobra.Command) bool {
args := cmd.Flags().Args()
if len(args) != 1 {
cmd.Help()
return false
}
o.name = args[0]
return true
}
func (o createClusterOptions) validate() error {
if len(o.name) == 0 {
return errors.New("You must specify a non-empty cluster name")
}
return nil
}

116
pkg/kubectl/cmd/config/create_context.go Normal file
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/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
type createContextOptions struct {
pathOptions *pathOptions
name string
cluster string
authInfo string
namespace string
}
func NewCmdConfigSetContext(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &createContextOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "set-context name",
Short: "Sets a context entry in .kubeconfig",
Long: `Sets a context entry in .kubeconfig
Specifying a name that already exists overwrites that context entry.
`,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
cmd.Flags().StringVar(&options.cluster, clientcmd.FlagClusterName, "", clientcmd.FlagClusterName+" for the context entry in .kubeconfig")
cmd.Flags().StringVar(&options.authInfo, clientcmd.FlagAuthInfoName, "", clientcmd.FlagAuthInfoName+" for the context entry in .kubeconfig")
cmd.Flags().StringVar(&options.namespace, clientcmd.FlagNamespace, "", clientcmd.FlagNamespace+" for the context entry in .kubeconfig")
return cmd
}
func (o createContextOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, filename, err := o.pathOptions.getStartingConfig()
if err != nil {
return err
}
context := o.context()
config.Contexts[o.name] = context
err = clientcmd.WriteToFile(*config, filename)
if err != nil {
return err
}
return nil
}
func (o *createContextOptions) context() clientcmdapi.Context {
context := clientcmdapi.Context{
Cluster: o.cluster,
AuthInfo: o.authInfo,
Namespace: o.namespace,
}
return context
}
func (o *createContextOptions) complete(cmd *cobra.Command) bool {
args := cmd.Flags().Args()
if len(args) != 1 {
cmd.Help()
return false
}
o.name = args[0]
return true
}
func (o createContextOptions) validate() error {
if len(o.name) == 0 {
return errors.New("You must specify a non-empty context name")
}
return nil
}

249
pkg/kubectl/cmd/config/set.go Normal file
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@ -0,0 +1,249 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"reflect"
"strings"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
)
const (
cannotHaveStepsAfterError = "Cannot have steps after %v. %v are remaining"
additionStepRequiredUnlessUnsettingError = "Must have additional steps after %v unless you are unsetting it"
)
type navigationSteps []string
type setOptions struct {
pathOptions *pathOptions
propertyName string
propertyValue string
}
func NewCmdConfigSet(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &setOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "set property-name property-value",
Short: "Sets an individual value in a .kubeconfig file",
Long: `Sets an individual value in a .kubeconfig file
property-name is a dot delimitted name where each token represents either a attribute name or a map key. Map keys may not contain dots.
property-value is the new value you wish to set.
`,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
return cmd
}
func (o setOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, filename, err := o.pathOptions.getStartingConfig()
if err != nil {
return err
}
if len(filename) == 0 {
return errors.New("cannot set property without using a specific file")
}
parts := strings.Split(o.propertyName, ".")
err = modifyConfig(reflect.ValueOf(config), parts, o.propertyValue, false)
if err != nil {
return err
}
err = clientcmd.WriteToFile(*config, filename)
if err != nil {
return err
}
return nil
}
func (o *setOptions) complete(cmd *cobra.Command) bool {
endingArgs := cmd.Flags().Args()
if len(endingArgs) != 2 {
cmd.Help()
return false
}
o.propertyValue = endingArgs[1]
o.propertyName = endingArgs[0]
return true
}
func (o setOptions) validate() error {
if len(o.propertyValue) == 0 {
return errors.New("You cannot use set to unset a property")
}
if len(o.propertyName) == 0 {
return errors.New("You must specify a property")
}
return nil
}
// moreStepsRemaining just makes code read cleaner
func moreStepsRemaining(remainder []string) bool {
return len(remainder) != 0
}
func (s navigationSteps) nextSteps() navigationSteps {
if len(s) < 2 {
return make([]string, 0, 0)
} else {
return s[1:]
}
}
func (s navigationSteps) moreStepsRemaining() bool {
return len(s) != 0
}
func (s navigationSteps) nextStep() string {
return s[0]
}
func modifyConfig(curr reflect.Value, steps navigationSteps, propertyValue string, unset bool) error {
shouldUnsetNextField := !steps.nextSteps().moreStepsRemaining() && unset
shouldSetThisField := !steps.moreStepsRemaining() && !unset
actualCurrValue := curr
if curr.Kind() == reflect.Ptr {
actualCurrValue = curr.Elem()
}
switch actualCurrValue.Kind() {
case reflect.Map:
if shouldSetThisField {
return fmt.Errorf("Can't set a map to a value: %v", actualCurrValue)
}
mapKey := reflect.ValueOf(steps.nextStep())
mapValueType := curr.Type().Elem().Elem()
if shouldUnsetNextField {
actualCurrValue.SetMapIndex(mapKey, reflect.Value{})
return nil
}
currMapValue := actualCurrValue.MapIndex(mapKey)
needToSetNewMapValue := currMapValue.Kind() == reflect.Invalid
if needToSetNewMapValue {
currMapValue = reflect.New(mapValueType).Elem()
actualCurrValue.SetMapIndex(mapKey, currMapValue)
}
// our maps do not hold pointers to structs, they hold the structs themselves. This means that MapIndex returns the struct itself
// That in turn means that they have kinds of type.Struct, which is not a settable type. Because of this, we need to make new struct of that type
// copy all the data from the old value into the new value, then take the .addr of the new value to modify it in the next recursion.
// clear as mud
modifiableMapValue := reflect.New(currMapValue.Type()).Elem()
modifiableMapValue.Set(currMapValue)
if modifiableMapValue.Kind() == reflect.Struct {
modifiableMapValue = modifiableMapValue.Addr()
}
err := modifyConfig(modifiableMapValue, steps.nextSteps(), propertyValue, unset)
if err != nil {
return err
}
actualCurrValue.SetMapIndex(mapKey, reflect.Indirect(modifiableMapValue))
return nil
case reflect.String:
if steps.moreStepsRemaining() {
return fmt.Errorf("Can't have more steps after a string. %v", steps)
}
actualCurrValue.SetString(propertyValue)
return nil
case reflect.Bool:
if steps.moreStepsRemaining() {
return fmt.Errorf("Can't have more steps after a bool. %v", steps)
}
boolValue, err := toBool(propertyValue)
if err != nil {
return err
}
actualCurrValue.SetBool(boolValue)
return nil
case reflect.Struct:
if !steps.moreStepsRemaining() {
return fmt.Errorf("Can't set a struct to a value: %v", actualCurrValue)
}
for fieldIndex := 0; fieldIndex < actualCurrValue.NumField(); fieldIndex++ {
currFieldValue := actualCurrValue.Field(fieldIndex)
currFieldType := actualCurrValue.Type().Field(fieldIndex)
currYamlTag := currFieldType.Tag.Get("json")
currFieldTypeYamlName := strings.Split(currYamlTag, ",")[0]
if currFieldTypeYamlName == steps.nextStep() {
thisMapHasNoValue := (currFieldValue.Kind() == reflect.Map && currFieldValue.IsNil())
if thisMapHasNoValue {
newValue := reflect.MakeMap(currFieldValue.Type())
currFieldValue.Set(newValue)
if shouldUnsetNextField {
return nil
}
}
if shouldUnsetNextField {
// if we're supposed to unset the value or if the value is a map that doesn't exist, create a new value and overwrite
newValue := reflect.New(currFieldValue.Type()).Elem()
currFieldValue.Set(newValue)
return nil
}
return modifyConfig(currFieldValue.Addr(), steps.nextSteps(), propertyValue, unset)
}
}
return fmt.Errorf("Unable to locate path %v under %v", steps, actualCurrValue)
}
return fmt.Errorf("Unrecognized type: %v", actualCurrValue)
}

107
pkg/kubectl/cmd/config/unset.go Normal file
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@ -0,0 +1,107 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"reflect"
"strings"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
)
type unsetOptions struct {
pathOptions *pathOptions
propertyName string
}
func NewCmdConfigUnset(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &unsetOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "unset property-name",
Short: "Unsets an individual value in a .kubeconfig file",
Long: `Unsets an individual value in a .kubeconfig file
property-name is a dot delimitted name where each token represents either a attribute name or a map key. Map keys may not contain dots.
`,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
return cmd
}
func (o unsetOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, filename, err := o.pathOptions.getStartingConfig()
if err != nil {
return err
}
if len(filename) == 0 {
return errors.New("cannot set property without using a specific file")
}
parts := strings.Split(o.propertyName, ".")
err = modifyConfig(reflect.ValueOf(config), parts, "", true)
if err != nil {
return err
}
err = clientcmd.WriteToFile(*config, filename)
if err != nil {
return err
}
return nil
}
func (o *unsetOptions) complete(cmd *cobra.Command) bool {
endingArgs := cmd.Flags().Args()
if len(endingArgs) != 1 {
cmd.Help()
return false
}
o.propertyName = endingArgs[0]
return true
}
func (o unsetOptions) validate() error {
if len(o.propertyName) == 0 {
return errors.New("You must specify a property")
}
return nil
}

98
pkg/kubectl/cmd/config/use_context.go Normal file
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@ -0,0 +1,98 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"errors"
"fmt"
"io"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
)
type useContextOptions struct {
pathOptions *pathOptions
contextName string
}
func NewCmdConfigUseContext(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &useContextOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "use-context context-name",
Short: "Sets the current-context in a .kubeconfig file",
Long: `Sets the current-context in a .kubeconfig file`,
Run: func(cmd *cobra.Command, args []string) {
if !options.complete(cmd) {
return
}
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
return cmd
}
func (o useContextOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, filename, err := o.pathOptions.getStartingConfig()
if err != nil {
return err
}
if len(filename) == 0 {
return errors.New("cannot set current-context without using a specific file")
}
config.CurrentContext = o.contextName
err = clientcmd.WriteToFile(*config, filename)
if err != nil {
return err
}
return nil
}
func (o *useContextOptions) complete(cmd *cobra.Command) bool {
endingArgs := cmd.Flags().Args()
if len(endingArgs) != 1 {
cmd.Help()
return false
}
o.contextName = endingArgs[0]
return true
}
func (o useContextOptions) validate() error {
if len(o.contextName) == 0 {
return errors.New("You must specify a current-context")
}
return nil
}

99
pkg/kubectl/cmd/config/view.go Normal file
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@ -0,0 +1,99 @@
/*
Copyright 2014 Google Inc. All rights reserved.
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 config
import (
"fmt"
"io"
"github.com/ghodss/yaml"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
)
type viewOptions struct {
pathOptions *pathOptions
merge bool
}
func NewCmdConfigView(out io.Writer, pathOptions *pathOptions) *cobra.Command {
options := &viewOptions{pathOptions: pathOptions}
cmd := &cobra.Command{
Use: "view",
Short: "displays the specified .kubeconfig file or a merged result",
Long: `displays the specified .kubeconfig file or a merged result`,
Run: func(cmd *cobra.Command, args []string) {
err := options.run()
if err != nil {
fmt.Printf("%v\n", err)
}
},
}
cmd.Flags().BoolVar(&options.merge, "merge", false, "merge together the full hierarchy of .kubeconfig files")
return cmd
}
func (o viewOptions) run() error {
err := o.validate()
if err != nil {
return err
}
config, _, err := o.getStartingConfig()
if err != nil {
return err
}
content, err := yaml.Marshal(config)
if err != nil {
return err
}
fmt.Printf("%v", string(content))
return nil
}
func (o viewOptions) validate() error {
return nil
}
// getStartingConfig returns the Config object built from the sources specified by the options, the filename read (only if it was a single file), and an error if something goes wrong
func (o *viewOptions) getStartingConfig() (*clientcmdapi.Config, string, error) {
switch {
case o.merge:
loadingRules := clientcmd.NewClientConfigLoadingRules()
loadingRules.EnvVarPath = ""
loadingRules.CommandLinePath = o.pathOptions.specifiedFile
overrides := &clientcmd.ConfigOverrides{}
clientConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, overrides)
config, err := clientConfig.RawConfig()
if err != nil {
return nil, "", fmt.Errorf("Error getting config: %v", err)
}
return &config, "", nil
default:
return o.pathOptions.getStartingConfig()
}
}