restore --pod: cannot restore pod container without --pod #15018
Description
Failing in ubuntu 2204, remote, with cgroupsv1 and runc:
podman checkpoint and restore container out of and into pod (ipc,net,uts,pid)
...
# podman-remote [options] container restore --pod NEW-POD-ID -i /tmp/checkpoint-CONTAINER-ID.tar.gz
Error: cannot restore pod container without --pod
(The discerning reader will note that --pod is specified in the command line). That error seems to come from
podman/pkg/checkpoint/checkpoint_restore.go
Lines 59 to 61 in 039deec
Earlier in that test, I see this warning:
# podman-remote [options] container checkpoint -e /tmp/checkpoint-CONTAINER-ID.tar.gz CONTAINER-ID
time="2022-07-20T21:07:00Z" level=warning msg="lstat /sys/fs/cgroup/devices/machine.slice/machine-libpod_pod_OLD-POD-ID.slice/libpod-CONTAINER-ID.scope: no such file or directory"
So, yeah, seems to be cgroups-related. Something we just never tested because we haven't been testing runc.