FWIW something like:
for d in `tail -n +2 /tmp/2 | awk '{
if ($2 == 0)
print $1
else if (a[$2])
a[$2] = a[$2]","$1
else
a[$2]=$1
};END{
for(i in a) {
print a[i]
}
}'`; do
mkdir -p /sys/fs/cgroup/$d
mountpoint -q /sys/fs/cgroup/$d || (mount -n -t cgroup -o $d cgroup
/sys/fs/cgroup/$d || rmdir /sys/fs/cgroup/$d || true)
done
seems to work. Again excluding the possibility of unified hierarchy,
which I've not tested.
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https://bugs.launchpad.net/bugs/1668724
Title:
fails to mount cgroupfs inside containers running on 16.04
Status in cgroup-lite package in Ubuntu:
Triaged
Status in cgroup-lite source package in Precise:
New
Status in cgroup-lite source package in Trusty:
New
Status in cgroup-lite source package in Xenial:
New
Status in cgroup-lite source package in Yakkety:
New
Bug description:
I need to run nested Ubuntu 12.04 and 14.04 containers on 16.04 hosts,
and have noticed that the cgroups-mount script for mounting the
cgroups inside the containers has stopped working. This is because
systemd now comounts multiple controllers on a single hierarchy, which
prevents mounting them individually inside the container.
=========== SRU Justification ================
Impact: nested containers fail to start
Reproduce: create a root owned container; install lxc and cgroup-lite;
create a container, and try to start it. Starting will fail if cgroup-lite is
running in the first level container without this patch.
Regression potential: should be low, it's possible that the regexp is simply
wrong for some cases.
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