package pods import ( "context" "fmt" "os" "strings" "github.com/containers/libpod/cmd/podman/common" "github.com/containers/libpod/cmd/podman/parse" "github.com/containers/libpod/cmd/podman/registry" "github.com/containers/libpod/libpod/define" "github.com/containers/libpod/pkg/domain/entities" "github.com/containers/libpod/pkg/errorhandling" "github.com/containers/libpod/pkg/specgen" "github.com/containers/libpod/pkg/util" "github.com/pkg/errors" "github.com/spf13/cobra" ) var ( podCreateDescription = `After creating the pod, the pod ID is printed to stdout. You can then start it at any time with the podman pod start command. The pod will be created with the initial state 'created'.` createCommand = &cobra.Command{ Use: "create", Args: cobra.NoArgs, Short: "Create a new empty pod", Long: podCreateDescription, RunE: create, } ) var ( createOptions entities.PodCreateOptions labels, labelFile []string podIDFile string share string ) func init() { registry.Commands = append(registry.Commands, registry.CliCommand{ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode}, Command: createCommand, Parent: podCmd, }) flags := createCommand.Flags() flags.SetInterspersed(false) flags.AddFlagSet(common.GetNetFlags()) flags.StringVar(&createOptions.CGroupParent, "cgroup-parent", "", "Set parent cgroup for the pod") flags.BoolVar(&createOptions.Infra, "infra", true, "Create an infra container associated with the pod to share namespaces with") flags.StringVar(&createOptions.InfraImage, "infra-image", define.DefaultInfraImage, "The image of the infra container to associate with the pod") flags.StringVar(&createOptions.InfraCommand, "infra-command", define.DefaultInfraCommand, "The command to run on the infra container when the pod is started") flags.StringSliceVar(&labelFile, "label-file", []string{}, "Read in a line delimited file of labels") flags.StringSliceVarP(&labels, "label", "l", []string{}, "Set metadata on pod (default [])") flags.StringVarP(&createOptions.Name, "name", "n", "", "Assign a name to the pod") flags.StringVarP(&createOptions.Hostname, "hostname", "", "", "Set a hostname to the pod") flags.StringVar(&podIDFile, "pod-id-file", "", "Write the pod ID to the file") flags.StringVar(&share, "share", common.DefaultKernelNamespaces, "A comma delimited list of kernel namespaces the pod will share") } func create(cmd *cobra.Command, args []string) error { var ( err error podIdFile *os.File ) createOptions.Labels, err = parse.GetAllLabels(labelFile, labels) if err != nil { return errors.Wrapf(err, "unable to process labels") } if !createOptions.Infra && cmd.Flag("share").Changed && share != "none" && share != "" { return errors.Errorf("You cannot share kernel namespaces on the pod level without an infra container") } createOptions.Share = strings.Split(share, ",") if cmd.Flag("pod-id-file").Changed { podIdFile, err = util.OpenExclusiveFile(podIDFile) if err != nil && os.IsExist(err) { return errors.Errorf("pod id file exists. Ensure another pod is not using it or delete %s", podIDFile) } if err != nil { return errors.Errorf("error opening pod-id-file %s", podIDFile) } defer errorhandling.CloseQuiet(podIdFile) defer errorhandling.SyncQuiet(podIdFile) } createOptions.Net, err = common.NetFlagsToNetOptions(cmd) if err != nil { return err } netInput, err := cmd.Flags().GetString("network") if err != nil { return err } n := specgen.Namespace{} switch netInput { case "bridge": n.NSMode = specgen.Bridge case "host": n.NSMode = specgen.Host case "slip4netns": n.NSMode = specgen.Slirp default: if strings.HasPrefix(netInput, "container:") { //nolint split := strings.Split(netInput, ":") if len(split) != 2 { return errors.Errorf("invalid network paramater: %q", netInput) } n.NSMode = specgen.FromContainer n.Value = split[1] } else if strings.HasPrefix(netInput, "ns:") { return errors.New("the ns: network option is not supported for pods") } else { n.NSMode = specgen.Bridge createOptions.Net.CNINetworks = strings.Split(netInput, ",") } } if len(createOptions.Net.PublishPorts) > 0 { if !createOptions.Infra { return errors.Errorf("you must have an infra container to publish port bindings to the host") } } if !createOptions.Infra { if cmd.Flag("infra-command").Changed { return errors.New("cannot set infra-command without an infra container") } createOptions.InfraCommand = "" if cmd.Flag("infra-image").Changed { return errors.New("cannot set infra-image without an infra container") } createOptions.InfraImage = "" if cmd.Flag("share").Changed { return errors.New("cannot set share namespaces without an infra container") } createOptions.Share = nil } response, err := registry.ContainerEngine().PodCreate(context.Background(), createOptions) if err != nil { return err } fmt.Println(response.Id) return nil }