Agent startup failing with systemd 237

[lbthomsen]

When using systemd 237 from Debian backports - systemd startup fails because cmanager.service fails.

[happyaron]

This is related to https://bugs.debian.org/865998 for which cgmanager cannot start properly with a backported version of systemd (currently systemd 237-3~bpo9+1 whereas stable has 232-25+deb9u2)

Subutai agent requires cgmanager.service to be running, so this effectively prevents the agent from starting.

More information lxc/lxc#1678 (comment)

● subutai.service - Subutai Daemon
  Loaded: loaded (/lib/systemd/system/subutai.service; enabled; vendor preset: enabled)
  Active: inactive (dead)

May 28 03:55:24 master-peer-us-2 systemd[1]: Dependency failed for Subutai Daemon.
May 28 03:55:24 master-peer-us-2 systemd[1]: subutai.service: Job subutai.service/start failed with result 'dependency'.

master-peer-us-2:~# systemctl status cgmanager.service
● cgmanager.service - Cgroup management daemon
  Loaded: loaded (/lib/systemd/system/cgmanager.service; enabled; vendor preset: enabled)
  Active: failed (Result: exit-code) since Mon 2018-05-28 03:55:24 UTC; 54s ago
 Process: 2085 ExecStart=/sbin/cgmanager -m name=systemd (code=exited, status=1/FAILURE)
Main PID: 2085 (code=exited, status=1/FAILURE)

May 28 03:55:24 master-peer-us-2 systemd[1]: cgmanager.service: Service hold-off time over, scheduling restart.
May 28 03:55:24 master-peer-us-2 systemd[1]: cgmanager.service: Scheduled restart job, restart counter is at 5.
May 28 03:55:24 master-peer-us-2 systemd[1]: Stopped Cgroup management daemon.
May 28 03:55:24 master-peer-us-2 systemd[1]: cgmanager.service: Start request repeated too quickly.
May 28 03:55:24 master-peer-us-2 systemd[1]: cgmanager.service: Failed with result 'exit-code'.
May 28 03:55:24 master-peer-us-2 systemd[1]: Failed to start Cgroup management daemon.```