package node import ( "fmt" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" apiclient "github.com/docker/docker/client" "github.com/spf13/cobra" "golang.org/x/net/context" ) // NewNodeCommand returns a cobra command for `node` subcommands func NewNodeCommand(dockerCli *command.DockerCli) *cobra.Command { cmd := &cobra.Command{ Use: "node", Short: "Manage Docker Swarm nodes", Args: cli.NoArgs, Run: func(cmd *cobra.Command, args []string) { fmt.Fprintf(dockerCli.Err(), "\n"+cmd.UsageString()) }, } cmd.AddCommand( newDemoteCommand(dockerCli), newInspectCommand(dockerCli), newListCommand(dockerCli), newPromoteCommand(dockerCli), newRemoveCommand(dockerCli), newPsCommand(dockerCli), newUpdateCommand(dockerCli), ) return cmd } // Reference returns the reference of a node. The special value "self" for a node // reference is mapped to the current node, hence the node ID is retrieved using // the `/info` endpoint. func Reference(ctx context.Context, client apiclient.APIClient, ref string) (string, error) { if ref == "self" { info, err := client.Info(ctx) if err != nil { return "", err } return info.Swarm.NodeID, nil } return ref, nil }