Function newLogsCommand

cli/command/service/logs.go:39–71

(dockerCLI command.Cli)

}

func newLogsCommand(dockerCLI command.Cli) *cobra.Command {
	var opts logsOptions

	cmd := &cobra.Command{
		Use:   "logs [OPTIONS] SERVICE|TASK",
		Short: "Fetch the logs of a service or task",
		Args:  cli.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			opts.target = args[0]
			return runLogs(cmd.Context(), dockerCLI, &opts)
		},
		Annotations:           map[string]string{"version": "1.29"},
		ValidArgsFunction:     completeServiceNames(dockerCLI),
		DisableFlagsInUseLine: true,
	}

	flags := cmd.Flags()
	// options specific to service logs
	flags.BoolVar(&opts.noResolve, "no-resolve", false, "Do not map IDs to Names in output")
	flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate output")
	flags.BoolVar(&opts.raw, "raw", false, "Do not neatly format logs")
	_ = flags.SetAnnotation("raw", "version", []string{"1.30"})
	flags.BoolVar(&opts.noTaskIDs, "no-task-ids", false, "Do not include task IDs in output")
	// options identical to container logs
	flags.BoolVarP(&opts.follow, "follow", "f", false, "Follow log output")
	flags.StringVar(&opts.since, "since", "", `Show logs since timestamp (e.g. "2013-01-02T13:23:37Z") or relative (e.g. "42m" for 42 minutes)`)
	flags.BoolVarP(&opts.timestamps, "timestamps", "t", false, "Show timestamps")
	flags.BoolVar(&opts.details, "details", false, "Show extra details provided to logs")
	_ = flags.SetAnnotation("details", "version", []string{"1.30"})
	flags.StringVarP(&opts.tail, "tail", "n", "all", "Number of lines to show from the end of the logs")

	return cmd
}

func runLogs(ctx context.Context, dockerCli command.Cli, opts *logsOptions) error { //nolint:gocyclo
	apiClient := dockerCli.Client()