mirror of https://github.com/kubernetes/kops.git
129 lines
3.3 KiB
Go
129 lines
3.3 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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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 main
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import (
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"context"
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"fmt"
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"io"
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"github.com/spf13/cobra"
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"k8s.io/kops"
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"k8s.io/kops/cmd/kops/util"
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"k8s.io/kops/pkg/apis/kops/registry"
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"k8s.io/kubectl/pkg/util/i18n"
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"k8s.io/kubectl/pkg/util/templates"
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)
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var (
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versionLong = templates.LongDesc(i18n.T(`
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Print the kOps version and git SHA.`))
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versionExample = templates.Examples(i18n.T(`
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kops version`))
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versionShort = i18n.T(`Print the kOps version information.`)
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)
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// NewCmdVersion builds a cobra command for the kops version command
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func NewCmdVersion(f *util.Factory, out io.Writer) *cobra.Command {
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options := &VersionOptions{}
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cmd := &cobra.Command{
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Use: "version",
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Short: versionShort,
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Long: versionLong,
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Example: versionExample,
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Args: rootCommand.clusterNameArgsAllowNoCluster(&options.ClusterName),
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ValidArgsFunction: cobra.NoFileCompletions,
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RunE: func(cmd *cobra.Command, args []string) error {
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return RunVersion(f, out, options)
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},
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}
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cmd.Flags().BoolVar(&options.short, "short", options.short, "only print the main kOps version. Useful for scripting.")
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cmd.Flags().BoolVar(&options.server, "server", options.server, "show the kOps version that made the last change to the state store.")
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return cmd
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}
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type VersionOptions struct {
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short bool
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server bool
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ClusterName string
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}
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// RunVersion implements the version command logic
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func RunVersion(f *util.Factory, out io.Writer, options *VersionOptions) error {
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if options.short {
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s := kops.Version
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_, err := fmt.Fprintf(out, "%s\n", s)
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if err != nil {
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return err
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}
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if options.server {
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server := serverVersion(f, options)
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_, err := fmt.Fprintf(out, "%s\n", server)
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return err
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}
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return nil
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} else {
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client := kops.Version
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if kops.GitVersion != "" {
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client += " (git-" + kops.GitVersion + ")"
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}
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{
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_, err := fmt.Fprintf(out, "Client version: %s\n", client)
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if err != nil {
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return err
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}
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}
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if options.server {
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server := serverVersion(f, options)
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_, err := fmt.Fprintf(out, "Last applied server version: %s\n", server)
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return err
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}
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return nil
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}
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}
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func serverVersion(f *util.Factory, options *VersionOptions) string {
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if options.ClusterName == "" {
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return "No cluster selected"
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}
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ctx := context.Background()
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cluster, err := GetCluster(ctx, f, options.ClusterName)
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if err != nil {
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return "could not fetch cluster"
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}
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configBase, err := f.VFSContext().BuildVfsPath(cluster.Spec.ConfigStore.Base)
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if err != nil {
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return "could not talk to vfs"
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}
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kopsVersionUpdatedBytes, err := configBase.Join(registry.PathKopsVersionUpdated).ReadFile(ctx)
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if err != nil {
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return "could get cluster version"
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}
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return string(kopsVersionUpdatedBytes)
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}
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