task.Checkpoint should check status of container before handle
checkpoint. If the container has been paused, task.Checkpoint should
handle checkpoint and leave it paused.
Signed-off-by: Wei Fu <fuweid89@gmail.com>
Signed-off-by: Baijia <baijia.wr@antfin.com>
While the issue hasn't been fixed in the kernel yet, we can workaround
the issue by not using overlayfs snapshotter.
The newly added step runs all tests that match /TestCheckpoint/.
So, TestCRWithImagePath has been renamed to match the regexp.
Fixes#3930.
Signed-off-by: Kazuyoshi Kato <katokazu@amazon.com>