99 lines
2.3 KiB
Go
99 lines
2.3 KiB
Go
package swarm
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/moby/moby/client"
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"github.com/spf13/cobra"
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)
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type unlockKeyOptions struct {
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rotate bool
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quiet bool
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}
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func newUnlockKeyCommand(dockerCLI command.Cli) *cobra.Command {
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opts := unlockKeyOptions{}
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cmd := &cobra.Command{
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Use: "unlock-key [OPTIONS]",
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Short: "Manage the unlock key",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runUnlockKey(cmd.Context(), dockerCLI, opts)
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},
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Annotations: map[string]string{
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"version": "1.24",
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"swarm": "manager",
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},
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ValidArgsFunction: cobra.NoFileCompletions,
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DisableFlagsInUseLine: true,
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}
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flags := cmd.Flags()
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flags.BoolVar(&opts.rotate, flagRotate, false, "Rotate unlock key")
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flags.BoolVarP(&opts.quiet, flagQuiet, "q", false, "Only display token")
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return cmd
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}
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func runUnlockKey(ctx context.Context, dockerCLI command.Cli, opts unlockKeyOptions) error {
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apiClient := dockerCLI.Client()
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if opts.rotate {
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res, err := apiClient.SwarmInspect(ctx, client.SwarmInspectOptions{})
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if err != nil {
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return err
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}
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if !res.Swarm.Spec.EncryptionConfig.AutoLockManagers {
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return errors.New("cannot rotate because autolock is not turned on")
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}
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_, err = apiClient.SwarmUpdate(ctx, client.SwarmUpdateOptions{
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Version: res.Swarm.Version,
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Spec: res.Swarm.Spec,
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RotateManagerUnlockKey: true,
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})
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if err != nil {
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return err
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}
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if !opts.quiet {
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_, _ = fmt.Fprintln(dockerCLI.Out(), "Successfully rotated manager unlock key.")
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}
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}
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resp, err := apiClient.SwarmGetUnlockKey(ctx)
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if err != nil {
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return fmt.Errorf("could not fetch unlock key: %w", err)
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}
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if resp.Key == "" {
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return errors.New("no unlock key is set")
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}
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if opts.quiet {
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_, _ = fmt.Fprintln(dockerCLI.Out(), resp.Key)
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return nil
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}
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printUnlockCommand(dockerCLI.Out(), resp.Key)
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return nil
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}
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func printUnlockCommand(out io.Writer, unlockKey string) {
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if len(unlockKey) > 0 {
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_, _ = fmt.Fprintf(out, "To unlock a swarm manager after it restarts, "+
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"run the `docker swarm unlock`\ncommand and provide the following key:\n\n %s\n\n"+
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"Remember to store this key in a password manager, since without it you\n"+
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"will not be able to restart the manager.\n", unlockKey)
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}
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}
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