package main import ( "fmt" "os" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/cmd/podman/shared" "github.com/containers/libpod/libpod/define" "github.com/containers/libpod/pkg/adapter" "github.com/containers/libpod/pkg/errorhandling" "github.com/containers/libpod/pkg/util" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/spf13/cobra" ) var ( // Kernel namespaces shared by default within a pod podCreateCommand cliconfig.PodCreateValues 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 <pod_id> command. The pod will be created with the initial state 'created'.` _podCreateCommand = &cobra.Command{ Use: "create", Args: noSubArgs, Short: "Create a new empty pod", Long: podCreateDescription, RunE: func(cmd *cobra.Command, args []string) error { podCreateCommand.InputArgs = args podCreateCommand.GlobalFlags = MainGlobalOpts podCreateCommand.Remote = remoteclient return podCreateCmd(&podCreateCommand) }, } ) func init() { podCreateCommand.Command = _podCreateCommand podCreateCommand.SetHelpTemplate(HelpTemplate()) podCreateCommand.SetUsageTemplate(UsageTemplate()) flags := podCreateCommand.Flags() flags.SetInterspersed(false) flags.StringVar(&podCreateCommand.CgroupParent, "cgroup-parent", "", "Set parent cgroup for the pod") flags.BoolVar(&podCreateCommand.Infra, "infra", true, "Create an infra container associated with the pod to share namespaces with") flags.StringVar(&podCreateCommand.InfraImage, "infra-image", define.DefaultInfraImage, "The image of the infra container to associate with the pod") flags.StringVar(&podCreateCommand.InfraCommand, "infra-command", define.DefaultInfraCommand, "The command to run on the infra container when the pod is started") flags.StringSliceVar(&podCreateCommand.LabelFile, "label-file", []string{}, "Read in a line delimited file of labels") flags.StringSliceVarP(&podCreateCommand.Labels, "label", "l", []string{}, "Set metadata on pod (default [])") flags.StringVarP(&podCreateCommand.Name, "name", "n", "", "Assign a name to the pod") flags.StringVarP(&podCreateCommand.Hostname, "hostname", "", "", "Set a hostname to the pod") flags.StringVar(&podCreateCommand.PodIDFile, "pod-id-file", "", "Write the pod ID to the file") flags.StringSliceVarP(&podCreateCommand.Publish, "publish", "p", []string{}, "Publish a container's port, or a range of ports, to the host (default [])") flags.StringVar(&podCreateCommand.Share, "share", shared.DefaultKernelNamespaces, "A comma delimited list of kernel namespaces the pod will share") } func podCreateCmd(c *cliconfig.PodCreateValues) error { var ( err error podIdFile *os.File ) runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand) if err != nil { return errors.Wrapf(err, "error creating libpod runtime") } defer runtime.DeferredShutdown(false) if len(c.Publish) > 0 { if !c.Infra { return errors.Errorf("you must have an infra container to publish port bindings to the host") } } if !c.Infra && c.Flag("share").Changed && c.Share != "none" && c.Share != "" { return errors.Errorf("You cannot share kernel namespaces on the pod level without an infra container") } if c.Flag("pod-id-file").Changed { podIdFile, err = util.OpenExclusiveFile(c.PodIDFile) if err != nil && os.IsExist(err) { return errors.Errorf("pod id file exists. Ensure another pod is not using it or delete %s", c.PodIDFile) } if err != nil { return errors.Errorf("error opening pod-id-file %s", c.PodIDFile) } defer errorhandling.CloseQuiet(podIdFile) defer errorhandling.SyncQuiet(podIdFile) } labels, err := shared.GetAllLabels(c.LabelFile, c.Labels) if err != nil { return errors.Wrapf(err, "unable to process labels") } podID, err := runtime.CreatePod(getContext(), c, labels) if err != nil { return errors.Wrapf(err, "unable to create pod") } if podIdFile != nil { _, err = podIdFile.WriteString(podID) if err != nil { logrus.Error(err) } } fmt.Printf("%s\n", podID) return nil }