package main import ( "context" "fmt" "os" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/containers/libpod/libpod" "github.com/containers/libpod/pkg/rootless" "github.com/pkg/errors" "github.com/spf13/cobra" ) var ( checkpointCommand cliconfig.CheckpointValues checkpointDescription = ` podman container checkpoint Checkpoints one or more running containers. The container name or ID can be used. ` _checkpointCommand = &cobra.Command{ Use: "checkpoint", Short: "Checkpoints one or more containers", Long: checkpointDescription, RunE: func(cmd *cobra.Command, args []string) error { checkpointCommand.InputArgs = args checkpointCommand.GlobalFlags = MainGlobalOpts return checkpointCmd(&checkpointCommand) }, Example: `podman checkpoint --keep ctrID podman checkpoint --all podman checkpoint --leave-running --latest`, } ) func init() { checkpointCommand.Command = _checkpointCommand checkpointCommand.SetUsageTemplate(UsageTemplate()) flags := checkpointCommand.Flags() flags.BoolVarP(&checkpointCommand.Keep, "keep", "k", false, "Keep all temporary checkpoint files") flags.BoolVarP(&checkpointCommand.LeaveRunning, "leave-running", "R", false, "Leave the container running after writing checkpoint to disk") flags.BoolVar(&checkpointCommand.TcpEstablished, "tcp-established", false, "Checkpoint a container with established TCP connections") flags.BoolVarP(&checkpointCommand.All, "all", "a", false, "Checkpoint all running containers") flags.BoolVarP(&checkpointCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of") } func checkpointCmd(c *cliconfig.CheckpointValues) error { if rootless.IsRootless() { return errors.New("checkpointing a container requires root") } runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not get runtime") } defer runtime.Shutdown(false) options := libpod.ContainerCheckpointOptions{ Keep: c.Keep, KeepRunning: c.LeaveRunning, TCPEstablished: c.TcpEstablished, } if err := checkAllAndLatest(&c.PodmanCommand); err != nil { return err } containers, lastError := getAllOrLatestContainers(&c.PodmanCommand, runtime, libpod.ContainerStateRunning, "running") for _, ctr := range containers { if err = ctr.Checkpoint(context.TODO(), options); err != nil { if lastError != nil { fmt.Fprintln(os.Stderr, lastError) } lastError = errors.Wrapf(err, "failed to checkpoint container %v", ctr.ID()) } else { fmt.Println(ctr.ID()) } } return lastError }