ceph-ansible/roles/ceph-mon/tasks/templates/ceph-mon.service.j2

[Unit]
Description=Ceph Monitor
After=docker.service

[Service]
EnvironmentFile=/etc/environment
ExecStartPre=-/usr/bin/docker rm %i
ExecStartPre=/usr/bin/mkdir -p /etc/ceph /var/lib/ceph/mon
ExecStart=/usr/bin/docker run --rm --name %p --net=host \
   -v /var/lib/ceph:/var/lib/ceph \
   -v /etc/ceph:/etc/ceph \
   --privileged \
   -e CEPH_DAEMON=MON \
   -e MON_IP={{ hostvars[inventory_hostname]['ansible_' + ceph_mon_docker_interface]['ipv4']['address'] }} \
   -e CEPH_PUBLIC_NETWORK={{ ceph_mon_docker_subnet }} \
   -e MON_NAME={{ ansible_hostname }} \
   --name={{ ansible_hostname }} \
    {{ ceph_mon_docker_username }}/{{ ceph_mon_docker_imagename }}
ExecStopPost=-/usr/bin/docker stop %i
Restart=always
RestartSec=10s
TimeoutStartSec=120
TimeoutStopSec=15

[Install]
WantedBy=multi-user.target