package container import ( "fmt" "strings" "golang.org/x/net/context" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" "github.com/spf13/cobra" ) type pauseOptions struct { containers []string } // NewPauseCommand creates a new cobra.Command for `docker pause` func NewPauseCommand(dockerCli *command.DockerCli) *cobra.Command { var opts pauseOptions return &cobra.Command{ Use: "pause CONTAINER [CONTAINER...]", Short: "Pause all processes within one or more containers", Args: cli.RequiresMinArgs(1), RunE: func(cmd *cobra.Command, args []string) error { opts.containers = args return runPause(dockerCli, &opts) }, } } func runPause(dockerCli *command.DockerCli, opts *pauseOptions) error { ctx := context.Background() var errs []string errChan := parallelOperation(ctx, opts.containers, dockerCli.Client().ContainerPause) for _, container := range opts.containers { if err := <-errChan; err != nil { errs = append(errs, err.Error()) } else { fmt.Fprintf(dockerCli.Out(), "%s\n", container) } } if len(errs) > 0 { return fmt.Errorf("%s", strings.Join(errs, "\n")) } return nil }