85 lines
2.6 KiB
Go
85 lines
2.6 KiB
Go
package main
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import (
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"context"
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"fmt"
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"os"
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"github.com/containers/libpod/cmd/podman/cliconfig"
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"github.com/containers/libpod/cmd/podman/libpodruntime"
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"github.com/containers/libpod/libpod"
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"github.com/containers/libpod/pkg/rootless"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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var (
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restoreCommand cliconfig.RestoreValues
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restoreDescription = `
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podman container restore
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Restores a container from a checkpoint. The container name or ID can be used.
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`
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_restoreCommand = &cobra.Command{
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Use: "restore [flags] CONTAINER [CONTAINER...]",
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Short: "Restores one or more containers from a checkpoint",
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Long: restoreDescription,
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RunE: func(cmd *cobra.Command, args []string) error {
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restoreCommand.InputArgs = args
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restoreCommand.GlobalFlags = MainGlobalOpts
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return restoreCmd(&restoreCommand)
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},
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Args: func(cmd *cobra.Command, args []string) error {
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return checkAllAndLatest(cmd, args, false)
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},
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Example: `podman container restore ctrID
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podman container restore --latest
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podman container restore --all`,
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}
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)
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func init() {
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restoreCommand.Command = _restoreCommand
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restoreCommand.SetHelpTemplate(HelpTemplate())
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restoreCommand.SetUsageTemplate(UsageTemplate())
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flags := restoreCommand.Flags()
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flags.BoolVarP(&restoreCommand.All, "all", "a", false, "Restore all checkpointed containers")
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flags.BoolVarP(&restoreCommand.Keep, "keep", "k", false, "Keep all temporary checkpoint files")
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flags.BoolVarP(&restoreCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
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// TODO: add ContainerStateCheckpointed
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flags.BoolVar(&restoreCommand.TcpEstablished, "tcp-established", false, "Checkpoint a container with established TCP connections")
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markFlagHiddenForRemoteClient("latest", flags)
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}
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func restoreCmd(c *cliconfig.RestoreValues) error {
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if rootless.IsRootless() {
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return errors.New("restoring a container requires root")
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}
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runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
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if err != nil {
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return errors.Wrapf(err, "could not get runtime")
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}
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defer runtime.Shutdown(false)
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options := libpod.ContainerCheckpointOptions{
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Keep: c.Keep,
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TCPEstablished: c.TcpEstablished,
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}
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containers, lastError := getAllOrLatestContainers(&c.PodmanCommand, runtime, libpod.ContainerStateExited, "checkpointed")
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for _, ctr := range containers {
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if err = ctr.Restore(context.TODO(), options); err != nil {
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if lastError != nil {
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fmt.Fprintln(os.Stderr, lastError)
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}
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lastError = errors.Wrapf(err, "failed to restore container %v", ctr.ID())
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} else {
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fmt.Println(ctr.ID())
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}
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}
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return lastError
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}
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