[lxc-users] lxc-autostart, systemd and cgroups

[Carlos Alberto Lopez Perez]

On 20/01/16 18:59, Carlos Alberto Lopez Perez wrote:
> Hello,
> 
> I've found that when lxc-autostart is executed via systemd, the cgroups
> assigned to the container are wrong for some control groups.
> 
> See the following two examples:
> 
> 1. Container started via systemd (/lib/systemd/system/lxc.service unit
> that calls lxc-autostart).
> 
> # cat /proc/${pidofsomeprocessinsidethecontainer}/cgroup
> 9:perf_event:/lxc/clopeztest3
> 8:blkio:/
> 7:net_cls,net_prio:/lxc/clopeztest3
> 6:freezer:/lxc/clopeztest3
> 5:devices:/
> 4:memory:/
> 3:cpu,cpuacct:/
> 2:cpuset:/lxc/clopeztest3
> 1:name=systemd:/system.slice/lxc.service
> 
> 

After more testing, this only seems reproducible when booting.

If I manually execute via ssh:

# systemctl stop lxc
# systemctl start lxc

Then the cgroups assigned to the container are correct:

# cat /proc/${pidofsomeprocessinsidethecontainer}/cgroup
9:perf_event:/lxc/clopeztest3
8:blkio:/lxc/clopeztest3
7:net_cls,net_prio:/lxc/clopeztest3
6:freezer:/lxc/clopeztest3
5:devices:/lxc/clopeztest3
4:memory:/lxc/clopeztest3
3:cpu,cpuacct:/lxc/clopeztest3
2:cpuset:/lxc/clopeztest3
1:name=systemd:/system.slice/lxc.service


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