Add --ignore-rootfs option for checkpoint/restore

The newly added functionality to include the container's root
file-system changes into the checkpoint archive can now be explicitly
disabled. Either during checkpoint or during restore.

If a container changes a lot of files during its runtime it might be
more effective to migrated the root file-system changes in some other
way and to not needlessly increase the size of the checkpoint archive.

If a checkpoint archive does not contain the root file-system changes
information it will automatically be skipped. If the root file-system
changes are part of the checkpoint archive it is also possible to tell
Podman to ignore these changes.

Signed-off-by: Adrian Reber <areber@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/pkg/adapter/containers_remote.go b/pkg/adapter/containers_remote.go
index 5836d0788..5e8df1b62 100644
--- a/pkg/adapter/containers_remote.go
+++ b/pkg/adapter/containers_remote.go
@@ -668,6 +668,9 @@ func (r *LocalRuntime) Checkpoint(c *cliconfig.CheckpointValues) error {
 	if c.Export != "" {
 		return errors.New("the remote client does not support exporting checkpoints")
 	}
+	if c.IgnoreRootfs {
+		return errors.New("the remote client does not support --ignore-rootfs")
+	}
 
 	var lastError error
 	ids, err := iopodman.GetContainersByContext().Call(r.Conn, c.All, c.Latest, c.InputArgs)
@@ -708,6 +711,9 @@ func (r *LocalRuntime) Restore(ctx context.Context, c *cliconfig.RestoreValues)
 	if c.Import != "" {
 		return errors.New("the remote client does not support importing checkpoints")
 	}
+	if c.IgnoreRootfs {
+		return errors.New("the remote client does not support --ignore-rootfs")
+	}
 
 	var lastError error
 	ids, err := iopodman.GetContainersByContext().Call(r.Conn, c.All, c.Latest, c.InputArgs)