Function runJoinToken

cli/command/swarm/join_token.go:45–99

(ctx context.Context, dockerCLI command.Cli, opts joinTokenOptions)

}

func runJoinToken(ctx context.Context, dockerCLI command.Cli, opts joinTokenOptions) error {
	worker := opts.role == "worker"
	manager := opts.role == "manager"

	if !worker && !manager {
		return errors.New("unknown role " + opts.role)
	}

	apiClient := dockerCLI.Client()

	if opts.rotate {
		res, err := apiClient.SwarmInspect(ctx, client.SwarmInspectOptions{})
		if err != nil {
			return err
		}

		_, err = apiClient.SwarmUpdate(ctx, client.SwarmUpdateOptions{
			Version:            res.Swarm.Version,
			Spec:               res.Swarm.Spec,
			RotateWorkerToken:  worker,
			RotateManagerToken: manager,
		})
		if err != nil {
			return err
		}

		if !opts.quiet {
			_, _ = fmt.Fprintf(dockerCLI.Out(), "Successfully rotated %s join token.\n\n", opts.role)
		}
	}

	// second SwarmInspect in this function,
	// this is necessary since SwarmUpdate after first changes the join tokens
	res, err := apiClient.SwarmInspect(ctx, client.SwarmInspectOptions{})
	if err != nil {
		return err
	}

	if opts.quiet && worker {
		_, _ = fmt.Fprintln(dockerCLI.Out(), res.Swarm.JoinTokens.Worker)
		return nil
	}

	if opts.quiet && manager {
		_, _ = fmt.Fprintln(dockerCLI.Out(), res.Swarm.JoinTokens.Manager)
		return nil
	}

	infoResp, err := apiClient.Info(ctx, client.InfoOptions{})
	if err != nil {
		return err
	}

	return printJoinCommand(ctx, dockerCLI, infoResp.Info.Swarm.NodeID, worker, manager)
}

func printJoinCommand(ctx context.Context, dockerCLI command.Cli, nodeID string, worker bool, manager bool) error {
	apiClient := dockerCLI.Client()