105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
package swarm
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import (
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"errors"
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"fmt"
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"github.com/spf13/cobra"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/cli"
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"github.com/docker/docker/cli/command"
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"golang.org/x/net/context"
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)
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func newJoinTokenCommand(dockerCli *command.DockerCli) *cobra.Command {
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var rotate, quiet bool
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cmd := &cobra.Command{
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Use: "join-token [OPTIONS] (worker|manager)",
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Short: "Manage join tokens",
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Args: cli.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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worker := args[0] == "worker"
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manager := args[0] == "manager"
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if !worker && !manager {
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return errors.New("unknown role " + args[0])
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}
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client := dockerCli.Client()
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ctx := context.Background()
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if rotate {
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var flags swarm.UpdateFlags
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swarm, err := client.SwarmInspect(ctx)
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if err != nil {
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return err
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}
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flags.RotateWorkerToken = worker
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flags.RotateManagerToken = manager
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err = client.SwarmUpdate(ctx, swarm.Version, swarm.Spec, flags)
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if err != nil {
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return err
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}
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if !quiet {
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fmt.Fprintf(dockerCli.Out(), "Successfully rotated %s join token.\n\n", args[0])
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}
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}
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swarm, err := client.SwarmInspect(ctx)
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if err != nil {
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return err
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}
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if quiet {
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if worker {
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fmt.Fprintln(dockerCli.Out(), swarm.JoinTokens.Worker)
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} else {
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fmt.Fprintln(dockerCli.Out(), swarm.JoinTokens.Manager)
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}
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} else {
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info, err := client.Info(ctx)
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if err != nil {
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return err
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}
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return printJoinCommand(ctx, dockerCli, info.Swarm.NodeID, worker, manager)
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}
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return nil
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},
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}
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flags := cmd.Flags()
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flags.BoolVar(&rotate, flagRotate, false, "Rotate join token")
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flags.BoolVarP(&quiet, flagQuiet, "q", false, "Only display token")
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return cmd
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}
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func printJoinCommand(ctx context.Context, dockerCli *command.DockerCli, nodeID string, worker bool, manager bool) error {
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client := dockerCli.Client()
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swarm, err := client.SwarmInspect(ctx)
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if err != nil {
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return err
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}
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node, _, err := client.NodeInspectWithRaw(ctx, nodeID)
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if err != nil {
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return err
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}
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if node.ManagerStatus != nil {
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if worker {
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fmt.Fprintf(dockerCli.Out(), "To add a worker to this swarm, run the following command:\n\n docker swarm join \\\n --token %s \\\n %s\n\n", swarm.JoinTokens.Worker, node.ManagerStatus.Addr)
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}
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if manager {
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fmt.Fprintf(dockerCli.Out(), "To add a manager to this swarm, run the following command:\n\n docker swarm join \\\n --token %s \\\n %s\n\n", swarm.JoinTokens.Manager, node.ManagerStatus.Addr)
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}
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}
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return nil
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}
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