package node import ( "fmt" "strings" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" "github.com/docker/docker/cli/command/formatter" "github.com/spf13/cobra" "golang.org/x/net/context" ) type inspectOptions struct { nodeIds []string format string pretty bool } func newInspectCommand(dockerCli command.Cli) *cobra.Command { var opts inspectOptions cmd := &cobra.Command{ Use: "inspect [OPTIONS] self|NODE [NODE...]", Short: "Display detailed information on one or more nodes", Args: cli.RequiresMinArgs(1), RunE: func(cmd *cobra.Command, args []string) error { opts.nodeIds = args return runInspect(dockerCli, opts) }, } flags := cmd.Flags() flags.StringVarP(&opts.format, "format", "f", "", "Format the output using the given Go template") flags.BoolVar(&opts.pretty, "pretty", false, "Print the information in a human friendly format") return cmd } func runInspect(dockerCli command.Cli, opts inspectOptions) error { client := dockerCli.Client() ctx := context.Background() if opts.pretty { opts.format = "pretty" } getRef := func(ref string) (interface{}, []byte, error) { nodeRef, err := Reference(ctx, client, ref) if err != nil { return nil, nil, err } node, _, err := client.NodeInspectWithRaw(ctx, nodeRef) return node, nil, err } f := opts.format // check if the user is trying to apply a template to the pretty format, which // is not supported if strings.HasPrefix(f, "pretty") && f != "pretty" { return fmt.Errorf("Cannot supply extra formatting options to the pretty template") } nodeCtx := formatter.Context{ Output: dockerCli.Out(), Format: formatter.NewNodeFormat(f, false), } if err := formatter.NodeInspectWrite(nodeCtx, opts.nodeIds, getRef); err != nil { return cli.StatusError{StatusCode: 1, Status: err.Error()} } return nil }