action #137198
closedPrepare cgroup-dependent test runs for container engines
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Description
In 15-SP6 we will have cgroups v2, previously we only had cgroups v1. Once released we need to test the container engines on both.
We should introduce a new setting, e.g. CGROUPS_VERSION that allows us to control which version a single test run is using. We don't need to support multiple cgroup versions per test run, one is enough.
This setting should make sure the appropriate cgroups settings are set in the kernel parameters (GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub). To enable v2, the systemd.unified_cgroup_hierarchy=1 setting should be set there.
Alternatively we can also use mount to check if cgroup2 is present in /sys/fs/cgroup.
# mount -l | grep cgroup
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,seclabel,nsdelegate)
We need to do this at least for podman and docker, and if possible for all other container engines as well.
Acceptance criteria¶
- Introduce a new setting e.g.
CGROUPS_VERSIONthat allows us to define the cgroups version to container engine test runs - Check if this can be applied on Tumbleweed (if there are still cgroups v1 possible) as testing ground because we cannot use cgroupsv2 on SLES15-SP5 and older
- Schedule container engine tests using both cgroups versions, if possible on Tumbleweed