I need to run nested Ubuntu 12.04 and 14.04 containers on 16.04 hosts, and
have noticed that the cgroups-lite 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. I haven't been able to find a source
code repository or issue tracker that looks active for this package, so
here's a poor-man's patch:
Change the for-loop under "# get list of cgroup controllers" to:
for c in `tail -n +2 /proc/cgroups | awk '{if(a[$2])a[$2]=a[$2]","$1; else
a[$2]=$1;};END{for(i in a){print a[i]}}'`; do
This groups the controllers by hierarchy and joins them correctly. I would
appreciate it if you could backport this patch to the cgroup-lite packages
on the LTS releases. Thanks!
-Cam
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