138 lines
4.0 KiB
Go
138 lines
4.0 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package config
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import (
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"errors"
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"fmt"
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"io"
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"github.com/spf13/cobra"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
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clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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)
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type createClusterOptions struct {
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pathOptions *pathOptions
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name string
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server util.StringFlag
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apiVersion util.StringFlag
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insecureSkipTLSVerify util.BoolFlag
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certificateAuthority util.StringFlag
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}
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func NewCmdConfigSetCluster(out io.Writer, pathOptions *pathOptions) *cobra.Command {
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options := &createClusterOptions{pathOptions: pathOptions}
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cmd := &cobra.Command{
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Use: fmt.Sprintf("set-cluster name [--%v=server] [--%v=path/to/certficate/authority] [--%v=apiversion] [--%v=true]", clientcmd.FlagAPIServer, clientcmd.FlagCAFile, clientcmd.FlagAPIVersion, clientcmd.FlagInsecure),
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Short: "Sets a cluster entry in .kubeconfig",
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Long: `Sets a cluster entry in .kubeconfig
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Specifying a name that already exists will merge new fields on top of existing values for those fields.
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e.g.
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kubectl config set-cluster e2e --certificate-authority=~/.kube/e2e/.kubernetes.ca.cert
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only sets the certificate-authority field on the e2e cluster entry without touching other values.
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`,
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Run: func(cmd *cobra.Command, args []string) {
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if !options.complete(cmd) {
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return
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}
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err := options.run()
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if err != nil {
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fmt.Printf("%v\n", err)
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}
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},
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}
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options.insecureSkipTLSVerify.Default(false)
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cmd.Flags().Var(&options.server, clientcmd.FlagAPIServer, clientcmd.FlagAPIServer+" for the cluster entry in .kubeconfig")
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cmd.Flags().Var(&options.apiVersion, clientcmd.FlagAPIVersion, clientcmd.FlagAPIVersion+" for the cluster entry in .kubeconfig")
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cmd.Flags().Var(&options.insecureSkipTLSVerify, clientcmd.FlagInsecure, clientcmd.FlagInsecure+" for the cluster entry in .kubeconfig")
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cmd.Flags().Var(&options.certificateAuthority, clientcmd.FlagCAFile, clientcmd.FlagCAFile+" for the cluster entry in .kubeconfig")
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return cmd
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}
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func (o createClusterOptions) run() error {
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err := o.validate()
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if err != nil {
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return err
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}
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config, filename, err := o.pathOptions.getStartingConfig()
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if err != nil {
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return err
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}
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if config.Clusters == nil {
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config.Clusters = make(map[string]clientcmdapi.Cluster)
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}
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cluster := o.modifyCluster(config.Clusters[o.name])
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config.Clusters[o.name] = cluster
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err = clientcmd.WriteToFile(*config, filename)
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if err != nil {
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return err
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}
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return nil
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}
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// cluster builds a Cluster object from the options
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func (o *createClusterOptions) modifyCluster(existingCluster clientcmdapi.Cluster) clientcmdapi.Cluster {
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modifiedCluster := existingCluster
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if o.server.Provided() {
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modifiedCluster.Server = o.server.Value()
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}
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if o.apiVersion.Provided() {
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modifiedCluster.APIVersion = o.apiVersion.Value()
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}
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if o.insecureSkipTLSVerify.Provided() {
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modifiedCluster.InsecureSkipTLSVerify = o.insecureSkipTLSVerify.Value()
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}
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if o.certificateAuthority.Provided() {
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modifiedCluster.CertificateAuthority = o.certificateAuthority.Value()
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}
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return modifiedCluster
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}
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func (o *createClusterOptions) complete(cmd *cobra.Command) bool {
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args := cmd.Flags().Args()
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if len(args) != 1 {
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cmd.Help()
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return false
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}
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o.name = args[0]
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return true
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}
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func (o createClusterOptions) validate() error {
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if len(o.name) == 0 {
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return errors.New("You must specify a non-empty cluster name")
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}
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return nil
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}
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