diff options
Diffstat (limited to 'cmd/podman/root.go')
| -rw-r--r-- | cmd/podman/root.go | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/cmd/podman/root.go b/cmd/podman/root.go index 9e4c8d24d..bccc559ce 100644 --- a/cmd/podman/root.go +++ b/cmd/podman/root.go @@ -15,6 +15,7 @@ import ( "github.com/containers/podman/v3/cmd/podman/registry" "github.com/containers/podman/v3/cmd/podman/validate" "github.com/containers/podman/v3/libpod/define" + "github.com/containers/podman/v3/pkg/checkpoint/crutils" "github.com/containers/podman/v3/pkg/domain/entities" "github.com/containers/podman/v3/pkg/parallel" "github.com/containers/podman/v3/pkg/rootless" @@ -114,6 +115,48 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error { cfg := registry.PodmanConfig() + // Currently it is only possible to restore a container with the same runtime + // as used for checkpointing. It should be possible to make crun and runc + // compatible to restore a container with another runtime then checkpointed. + // Currently that does not work. + // To make it easier for users we will look into the checkpoint archive and + // set the runtime to the one used during checkpointing. + if !registry.IsRemote() && cmd.Name() == "restore" { + if cmd.Flag("import").Changed { + runtime, err := crutils.CRGetRuntimeFromArchive(cmd.Flag("import").Value.String()) + if err != nil { + return errors.Wrapf( + err, + "failed extracting runtime information from %s", + cmd.Flag("import").Value.String(), + ) + } + if cfg.RuntimePath == "" { + // If the user did not select a runtime, this takes the one from + // the checkpoint archives and tells Podman to use it for the restore. + runtimeFlag := cmd.Root().Flags().Lookup("runtime") + if runtimeFlag == nil { + return errors.Errorf( + "Unexcpected error setting runtime to '%s' for restore", + *runtime, + ) + } + runtimeFlag.Value.Set(*runtime) + runtimeFlag.Changed = true + logrus.Debugf("Checkpoint was created using '%s'. Restore will use the same runtime", *runtime) + } else if cfg.RuntimePath != *runtime { + // If the user selected a runtime on the command-line this checks if + // it is the same then during checkpointing and errors out if not. + return errors.Errorf( + "checkpoint archive %s was created with runtime '%s' and cannot be restored with runtime '%s'", + cmd.Flag("import").Value.String(), + *runtime, + cfg.RuntimePath, + ) + } + } + } + // --connection is not as "special" as --remote so we can wait and process it here conn := cmd.Root().LocalFlags().Lookup("connection") if conn != nil && conn.Changed { |