Comment 9 for bug 1554999

<root@maasx>:~# cat /proc/1/cgroup
11:blkio:/init.scope
10:memory:/init.scope
9:devices:/init.scope
8:cpuset:/
7:pids:/init.scope
6:hugetlb:/
5:freezer:/
4:cpu,cpuacct:/init.scope
3:perf_event:/
2:net_cls,net_prio:/
1:name=systemd:/init.scope

<root@maasx>:~# find -H /sys/class/net/* | grep bond
<root@maasx>:~#
<root@maasx>:~# python3 -c "from provisioningserver.networks import get_interfaces_definition; from pprint import pprint; pprint(get_interfaces_definition()[0])"
{}
<root@maasx>:~#