hpc-cloud/roles/neutron-controller/templates/neutron-controller.service

[Unit]
Description=Openstack neutron-controller Container
After=docker.service
Requires=docker.service

[Service]
TimeoutStartSec=0
Restart=always
ExecStartPre=-/usr/bin/docker kill %n
ExecStartPre=-/usr/bin/docker rm %n
ExecStart=/usr/bin/docker run --name %n \
  {{ env_vars | replace('\n', '') }} \
  --add-host=nova-controller:{{ hostvars[groups['nova-controller'][0]]['ansible_default_ipv4']['address'] }} \
  --add-host=mariadb:{{ hostvars[groups['databases'][0]]['ansible_default_ipv4']['address'] }} \
  --add-host=keystone:{{ hostvars[groups['keystone'][0]]['ansible_default_ipv4']['address'] }} \
  --privileged \
  --network host \
  -v /lib/modules:/lib/modules \
  {{ docker_image }} /etc/run.sh

[Install]
WantedBy=multi-user.target