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package main
import (
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/pkg/adapter"
"github.com/containers/libpod/pkg/rootless"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
restoreCommand cliconfig.RestoreValues
restoreDescription = `
podman container restore
Restores a container from a checkpoint. The container name or ID can be used.
`
_restoreCommand = &cobra.Command{
Use: "restore [flags] CONTAINER [CONTAINER...]",
Short: "Restores one or more containers from a checkpoint",
Long: restoreDescription,
RunE: func(cmd *cobra.Command, args []string) error {
restoreCommand.InputArgs = args
restoreCommand.GlobalFlags = MainGlobalOpts
restoreCommand.Remote = remoteclient
return restoreCmd(&restoreCommand, cmd)
},
Args: func(cmd *cobra.Command, args []string) error {
return checkAllAndLatest(cmd, args, true)
},
Example: `podman container restore ctrID
podman container restore --latest
podman container restore --all`,
}
)
func init() {
restoreCommand.Command = _restoreCommand
restoreCommand.SetHelpTemplate(HelpTemplate())
restoreCommand.SetUsageTemplate(UsageTemplate())
flags := restoreCommand.Flags()
flags.BoolVarP(&restoreCommand.All, "all", "a", false, "Restore all checkpointed containers")
flags.BoolVarP(&restoreCommand.Keep, "keep", "k", false, "Keep all temporary checkpoint files")
flags.BoolVarP(&restoreCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
flags.BoolVar(&restoreCommand.TcpEstablished, "tcp-established", false, "Restore a container with established TCP connections")
flags.StringVarP(&restoreCommand.Import, "import", "i", "", "Restore from exported checkpoint archive (tar.gz)")
flags.StringVarP(&restoreCommand.Name, "name", "n", "", "Specify new name for container restored from exported checkpoint (only works with --import)")
markFlagHiddenForRemoteClient("latest", flags)
}
func restoreCmd(c *cliconfig.RestoreValues, cmd *cobra.Command) error {
if rootless.IsRootless() {
return errors.New("restoring a container requires root")
}
runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
options := libpod.ContainerCheckpointOptions{
Keep: c.Keep,
TCPEstablished: c.TcpEstablished,
TargetFile: c.Import,
Name: c.Name,
}
if c.Import == "" && c.Name != "" {
return errors.Errorf("--name can only used with --import")
}
if c.Name != "" && c.TcpEstablished {
return errors.Errorf("--tcp-established cannot be used with --name")
}
argLen := len(c.InputArgs)
if c.Import != "" {
if c.All || c.Latest {
return errors.Errorf("Cannot use --import with --all or --latest")
}
if argLen > 0 {
return errors.Errorf("Cannot use --import with positional arguments")
}
}
if (c.All || c.Latest) && argLen > 0 {
return errors.Errorf("no arguments are needed with --all or --latest")
}
if argLen < 1 && !c.All && !c.Latest && c.Import == "" {
return errors.Errorf("you must provide at least one name or id")
}
return runtime.Restore(getContext(), c, options)
}
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