docker: use systemd to manage container

Since we now only support systemd has an init system we can finally
treat containers as processes using systemd and this for all the
distros.

Signed-off-by: Sébastien Han <seb@redhat.com>

roles/ceph-mds/tasks/docker/start_docker_mds.yml

@@ -8,26 +8,22 @@
     owner: "root"
     group: "root"
     mode: "0644"
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: link systemd unit file for mds instance
   file:
     src: /var/lib/ceph/ceph-mds@.service
     dest: /etc/systemd/system/multi-user.target.wants/ceph-mds@{{ ansible_hostname }}.service
     state: link
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: enable systemd unit file for mds instance
   command: systemctl enable /etc/systemd/system/multi-user.target.wants/ceph-mds@{{ ansible_hostname }}.service
   failed_when: false
   changed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: reload systemd unit files
   command: systemctl daemon-reload
   changed_when: false
   failed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: systemd start mds container
   service:

roles/ceph-mon/tasks/docker/start_docker_monitor.yml

@@ -40,7 +40,6 @@
     image: "{{ ceph_mon_docker_username }}/{{ ceph_mon_docker_imagename }}:{{ ceph_mon_docker_image_tag }}"
   when: mon_containerized_deployment_with_kv
 
-# Use systemd to manage container on Atomic host and CoreOS
 - name: generate systemd unit file
   become: true
   template:
@@ -49,19 +48,16 @@
     owner: "root"
     group: "root"
     mode: "0644"
-  when:  ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: enable systemd unit file for mon instance
   shell: systemctl enable ceph-mon@{{ ansible_hostname }}.service
   failed_when: false
   changed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: reload systemd unit files
   shell: systemctl daemon-reload
   changed_when: false
   failed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: systemd start mon container
   service:

roles/ceph-nfs/tasks/docker/start_docker_nfs.yml

@@ -8,34 +8,22 @@
     owner: "root"
     group: "root"
     mode: "0644"
-  when:
-    is_atomic or
-    ansible_os_family == 'CoreOS'
 
 - name: link systemd unit file for NFS instance
   file:
     src: /var/lib/nfs/ganesha/ceph-nfs@.service
     dest: /etc/systemd/system/multi-user.target.wants/ceph-nfs@{{ ansible_hostname }}.service
     state: link
-  when:
-    is_atomic or
-    ansible_os_family == 'CoreOS'
 
 - name: enable systemd unit file for NFS instance
   shell: systemctl enable /etc/systemd/system/multi-user.target.wants/ceph-nfs@{{ ansible_hostname }}.service
   failed_when: false
   changed_when: false
-  when:
-    is_atomic or
-    ansible_os_family == 'CoreOS'
 
 - name: reload systemd unit files
   shell: systemctl daemon-reload
   changed_when: false
   failed_when: false
-  when:
-    is_atomic or
-    ansible_os_family == 'CoreOS'
 
 - name: systemd start NFS container
   service:

roles/ceph-osd/tasks/docker/start_docker_osd.yml

@@ -67,7 +67,6 @@
     - ceph_osd_docker_prepare_env is defined
     - osd_containerized_deployment_with_kv
 
-# Use systemd to manage container on appropriate host
 - name: generate systemd unit file
   become: true
   template:
@@ -77,20 +76,17 @@
     group: "root"
     mode: "0644"
   failed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: enable systemd unit file for osd instance
   shell: systemctl enable ceph-osd@{{ item | basename }}.service
   failed_when: false
   changed_when: false
   with_items: "{{ ceph_osd_docker_devices }}"
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: reload systemd unit files
   shell: systemctl daemon-reload
   changed_when: false
   failed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: systemd start osd container
   service:

roles/ceph-rbd-mirror/tasks/docker/start_docker_rbd_mirror.yml

@@ -8,19 +8,16 @@
     owner: "root"
     group: "root"
     mode: "0644"
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: enable systemd unit file for rbd mirror instance
   command: systemctl enable ceph-rbd-mirror@{{ ansible_hostname }}.service
   failed_when: false
   changed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: reload systemd unit files
   command: systemctl daemon-reload
   changed_when: false
   failed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: systemd start rbd mirror container
   service:

roles/ceph-rgw/tasks/docker/start_docker_rgw.yml

@@ -8,26 +8,22 @@
     owner: "root"
     group: "root"
     mode: "0644"
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: link systemd unit file for rgw instance
   file:
     src: /var/lib/ceph/ceph-rgw@.service
     dest: /etc/systemd/system/multi-user.target.wants/ceph-rgw@{{ ansible_hostname }}.service
     state: link
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: enable systemd unit file for rgw instance
   shell: systemctl enable /etc/systemd/system/multi-user.target.wants/ceph-rgw@{{ ansible_hostname }}.service
   failed_when: false
   changed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: reload systemd unit files
   shell: systemctl daemon-reload
   changed_when: false
   failed_when: false
-  when: ansible_os_family == 'RedHat' or ansible_os_family == 'CoreOS'
 
 - name: systemd start rgw container
   service: