diff options
Diffstat (limited to 'cmd/podman/checkpoint.go')
-rw-r--r-- | cmd/podman/checkpoint.go | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/cmd/podman/checkpoint.go b/cmd/podman/checkpoint.go new file mode 100644 index 000000000..cbbbcd740 --- /dev/null +++ b/cmd/podman/checkpoint.go @@ -0,0 +1,73 @@ +package main + +import ( + "context" + "fmt" + "os" + + "github.com/containers/libpod/cmd/podman/libpodruntime" + "github.com/containers/libpod/pkg/rootless" + "github.com/pkg/errors" + "github.com/urfave/cli" +) + +var ( + checkpointDescription = ` + podman container checkpoint + + Checkpoints one or more running containers. The container name or ID can be used. +` + checkpointFlags = []cli.Flag{ + cli.BoolFlag{ + Name: "keep, k", + Usage: "keep all temporary checkpoint files", + }, + } + checkpointCommand = cli.Command{ + Name: "checkpoint", + Usage: "Checkpoints one or more containers", + Description: checkpointDescription, + Flags: checkpointFlags, + Action: checkpointCmd, + ArgsUsage: "CONTAINER-NAME [CONTAINER-NAME ...]", + } +) + +func checkpointCmd(c *cli.Context) error { + if rootless.IsRootless() { + return errors.New("checkpointing a container requires root") + } + + runtime, err := libpodruntime.GetRuntime(c) + if err != nil { + return errors.Wrapf(err, "could not get runtime") + } + defer runtime.Shutdown(false) + + keep := c.Bool("keep") + args := c.Args() + if len(args) < 1 { + return errors.Errorf("you must provide at least one container name or id") + } + + var lastError error + for _, arg := range args { + ctr, err := runtime.LookupContainer(arg) + if err != nil { + if lastError != nil { + fmt.Fprintln(os.Stderr, lastError) + } + lastError = errors.Wrapf(err, "error looking up container %q", arg) + continue + } + if err = ctr.Checkpoint(context.TODO(), keep); 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 +} |