diff options
Diffstat (limited to 'cmd/podman/pods/clone.go')
-rw-r--r-- | cmd/podman/pods/clone.go | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/cmd/podman/pods/clone.go b/cmd/podman/pods/clone.go new file mode 100644 index 000000000..d95d74b05 --- /dev/null +++ b/cmd/podman/pods/clone.go @@ -0,0 +1,87 @@ +package pods + +import ( + "context" + "fmt" + + "github.com/containers/common/pkg/completion" + "github.com/containers/podman/v4/cmd/podman/common" + "github.com/containers/podman/v4/cmd/podman/registry" + "github.com/containers/podman/v4/libpod/define" + "github.com/containers/podman/v4/pkg/domain/entities" + "github.com/pkg/errors" + "github.com/spf13/cobra" +) + +var ( + podCloneDescription = `Create an exact copy of a pod and the containers within it` + + podCloneCommand = &cobra.Command{ + Use: "clone [options] POD NAME", + Short: "Clone an existing pod", + Long: podCloneDescription, + RunE: clone, + Args: cobra.RangeArgs(1, 2), + ValidArgsFunction: common.AutocompleteClone, + Example: `podman pod clone pod_name new_name`, + } +) + +var ( + podClone entities.PodCloneOptions +) + +func cloneFlags(cmd *cobra.Command) { + flags := cmd.Flags() + + destroyFlagName := "destroy" + flags.BoolVar(&podClone.Destroy, destroyFlagName, false, "destroy the original pod") + + startFlagName := "start" + flags.BoolVar(&podClone.Start, startFlagName, false, "start the new pod") + + nameFlagName := "name" + flags.StringVarP(&podClone.CreateOpts.Name, nameFlagName, "n", "", "name the new pod") + _ = podCloneCommand.RegisterFlagCompletionFunc(nameFlagName, completion.AutocompleteNone) + + common.DefineCreateDefaults(&podClone.InfraOptions) + common.DefineCreateFlags(cmd, &podClone.InfraOptions, true, false) + podClone.InfraOptions.MemorySwappiness = -1 // this is not implemented for pods yet, need to set -1 default manually + + // need to fill an empty ctr create option for each container for sane defaults + // for now, these cannot be used. The flag names conflict too much + // this makes sense since this is a pod command not a container command + // TODO: add support for container specific arguments/flags + common.DefineCreateDefaults(&podClone.PerContainerOptions) +} +func init() { + registry.Commands = append(registry.Commands, registry.CliCommand{ + Command: podCloneCommand, + Parent: podCmd, + }) + + cloneFlags(podCloneCommand) +} + +func clone(cmd *cobra.Command, args []string) error { + switch len(args) { + case 0: + return errors.Wrapf(define.ErrInvalidArg, "must specify at least 1 argument") + case 2: + podClone.CreateOpts.Name = args[1] + } + + podClone.ID = args[0] + podClone.PerContainerOptions.IsClone = true + rep, err := registry.ContainerEngine().PodClone(context.Background(), podClone) + if err != nil { + if rep != nil { + fmt.Printf("pod %s created but error after creation\n", rep.Id) + } + return err + } + + fmt.Println(rep.Id) + + return nil +} |