root@mth-k8stestetcd-03:~# vim /var/snap/etcd/common/etcd.conf
root@mth-k8stestetcd-03:~# systemctl restart snap.etcd.etcd.service
root@mth-k8stestetcd-03:~# systemctl status snap.etcd.etcd.service
● snap.etcd.etcd.service - Service for snap application etcd.etcd
   Loaded: loaded (/etc/systemd/system/snap.etcd.etcd.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Wed 2017-05-24 16:58:49 UTC; 4s ago
  Process: 27525 ExecStart=/usr/bin/snap run etcd --debug (code=exited, status=1/FAILURE)
 Main PID: 27525 (code=exited, status=1/FAILURE)

May 24 16:58:49 mth-k8stestetcd-03 systemd[1]: snap.etcd.etcd.service: Unit entered failed state.
May 24 16:58:49 mth-k8stestetcd-03 systemd[1]: snap.etcd.etcd.service: Failed with result 'exit-code'.
May 24 16:58:49 mth-k8stestetcd-03 systemd[1]: snap.etcd.etcd.service: Service hold-off time over, scheduling restart.
May 24 16:58:49 mth-k8stestetcd-03 systemd[1]: Stopped Service for snap application etcd.etcd.
May 24 16:58:49 mth-k8stestetcd-03 systemd[1]: snap.etcd.etcd.service: Start request repeated too quickly.
May 24 16:58:49 mth-k8stestetcd-03 systemd[1]: Failed to start Service for snap application etcd.etcd.