Function portCommand

cmd/compose/port.go:39–64

(p *ProjectOptions, dockerCli command.Cli, backendOptions *BackendOptions)

}

func portCommand(p *ProjectOptions, dockerCli command.Cli, backendOptions *BackendOptions) *cobra.Command {
	opts := portOptions{
		ProjectOptions: p,
	}
	cmd := &cobra.Command{
		Use:   "port [OPTIONS] SERVICE PRIVATE_PORT",
		Short: "Print the public port for a port binding",
		Args:  cobra.MinimumNArgs(2),
		PreRunE: Adapt(func(ctx context.Context, args []string) error {
			port, err := strconv.ParseUint(args[1], 10, 16)
			if err != nil {
				return err
			}
			opts.port = uint16(port)
			opts.protocol = strings.ToLower(opts.protocol)
			return nil
		}),
		RunE: Adapt(func(ctx context.Context, args []string) error {
			return runPort(ctx, dockerCli, backendOptions, opts, args[0])
		}),
		ValidArgsFunction: completeServiceNames(dockerCli, p),
	}
	cmd.Flags().StringVar(&opts.protocol, "protocol", "tcp", "tcp or udp")
	cmd.Flags().IntVar(&opts.index, "index", 0, "Index of the container if service has multiple replicas")
	return cmd
}

func runPort(ctx context.Context, dockerCli command.Cli, backendOptions *BackendOptions, opts portOptions, service string) error {
	projectName, err := opts.toProjectName(ctx, dockerCli)