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87 lines
3.0 KiB
87 lines
3.0 KiB
/*
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Copyright The Helm 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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"fmt"
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"io"
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"strconv"
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"time"
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"github.com/spf13/cobra"
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"helm.sh/helm/v3/cmd/helm/require"
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"helm.sh/helm/v3/internal/completion"
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"helm.sh/helm/v3/pkg/action"
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)
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const rollbackDesc = `
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This command rolls back a release to a previous revision.
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The first argument of the rollback command is the name of a release, and the
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second is a revision (version) number. If this argument is omitted, it will
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roll back to the previous release.
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To see revision numbers, run 'helm history RELEASE'.
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`
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func newRollbackCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
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client := action.NewRollback(cfg)
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cmd := &cobra.Command{
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Use: "rollback <RELEASE> [REVISION]",
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Short: "roll back a release to a previous revision",
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Long: rollbackDesc,
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Args: require.MinimumNArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) > 1 {
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ver, err := strconv.Atoi(args[1])
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if err != nil {
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return fmt.Errorf("could not convert revision to a number: %v", err)
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}
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client.Version = ver
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}
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if err := client.Run(args[0]); err != nil {
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return err
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}
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fmt.Fprintf(out, "Rollback was a success! Happy Helming!\n")
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return nil
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},
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}
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// Function providing dynamic auto-completion
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completion.RegisterValidArgsFunc(cmd, func(cmd *cobra.Command, args []string, toComplete string) ([]string, completion.BashCompDirective) {
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if len(args) != 0 {
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return nil, completion.BashCompDirectiveNoFileComp
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}
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return compListReleases(toComplete, cfg)
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})
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f := cmd.Flags()
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f.BoolVar(&client.DryRun, "dry-run", false, "simulate a rollback")
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f.BoolVar(&client.Recreate, "recreate-pods", false, "performs pods restart for the resource if applicable")
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f.BoolVar(&client.Force, "force", false, "force resource update through delete/recreate if needed")
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f.BoolVar(&client.DisableHooks, "no-hooks", false, "prevent hooks from running during rollback")
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f.DurationVar(&client.Timeout, "timeout", 300*time.Second, "time to wait for any individual Kubernetes operation (like Jobs for hooks)")
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f.BoolVar(&client.Wait, "wait", false, "if set, will wait until all Pods, PVCs, Services, and minimum number of Pods of a Deployment, StatefulSet, or ReplicaSet are in a ready state before marking the release as successful. It will wait for as long as --timeout")
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f.BoolVar(&client.CleanupOnFail, "cleanup-on-fail", false, "allow deletion of new resources created in this rollback when rollback fails")
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return cmd
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}
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