use db-redis-user group for setup_redis.yml and add repo role to setup_redis.yml

ansible/inventories/digital_ocean.yml

@@ -10,3 +10,4 @@ groups:
   db: inventory_hostname.startswith('db')
   task: inventory_hostname.startswith('task') and inventory_hostname != 'task'
   search: inventory_hostname.startswith('search')
+  db-redis-user: inventory_hostname.startswith('db-redis')

ansible/setup_redis.yml

@@ -1,106 +1,14 @@
 ---
-
-- name: Set up db-redis container
-  hosts: db-redis
+- name: Set up redis containers
+  hosts: db-redis-user
   remote_user: nb
+  vars:
+    - update_apt_cache: yes
+    - motd_role: db
+  vars_files:
+    - env_vars/base.yml
   roles:
     - base
     - docker
     - repo
-  vars:
-    - update_apt_cache: yes
-  vars_files:
-    - env_vars/base.yml
-  tasks:
-  - name: Start db-redis docker container
-    become: yes
-    docker_container:
-      name: db-redis-pubsub
-      image: redis:3.2.6
-      state: started
-      ports:
-        - 6379:6379
-      restart_policy: unless-stopped
-      volumes:
-        - /srv/newsblur/docker/volumes/redis:/data
-        - /srv/newsblur/config/redis.conf:/usr/local/etc/redis_server.conf
-        - /srv/newsblur/config/redis_docker.conf:/etc/redis_server.conf
-        - /srv/newsblur/docker/volumes/redis.var.lib:/var/lib/redis
-
-- name: Set up redis-pubsub container
-  hosts: db-redis-pubsub
-  remote_user: nb
-  roles:
-    - base
-    - docker
-  vars:
-    - update_apt_cache: yes
-  vars_files:
-    - env_vars/base.yml
-  tasks:
-  - name: Start db-redis-pubsub docker container
-    become: yes
-    docker_container:
-      name: db-redis-pubsub
-      image: redis:3.2.6
-      state: started
-      ports:
-        - 6379:6379
-      restart_policy: unless-stopped
-      volumes:
-        - /srv/newsblur/docker/volumes/redis:/data
-        - /srv/newsblur/config/redis.conf:/usr/local/etc/redis_server.conf
-        - /srv/newsblur/config/redis_docker.conf:/etc/redis_server.conf
-        - /srv/newsblur/docker/volumes/redis.var.lib:/var/lib/redis
-
-- name: Set up redis-story container
-  hosts: db-redis-story
-  remote_user: nb
-  roles:
-    - base
-    - docker
-  vars:
-    - update_apt_cache: yes
-  vars_files:
-    - env_vars/base.yml
-  tasks:
-  - name: Start db-redis-story docker container
-    become: yes
-    docker_container:
-      name: db-redis-story
-      image: redis:3.2.6
-      state: started
-      ports:
-        - 6379:6379
-      restart_policy: unless-stopped
-      volumes:
-        - /srv/newsblur/docker/volumes/redis:/data
-        - /srv/newsblur/config/redis.conf:/usr/local/etc/redis_server.conf
-        - /srv/newsblur/config/redis_docker.conf:/etc/redis_server.conf
-        - /srv/newsblur/docker/volumes/redis.var.lib:/var/lib/redis
-
-- name: Set up redis-sessions container
-  hosts: db-redis-sessions
-  remote_user: nb
-  roles:
-    - base
-    - docker
-  vars:
-    - update_apt_cache: yes
-  vars_files:
-    - env_vars/base.yml
-  tasks:
-  - name: Start db-redis-sessions docker container
-    become: yes
-    docker_container:
-      name: db-redis
-      image: redis:3.2.6
-      state: started
-      ports:
-        - 6379:6379
-      restart_policy: unless-stopped
-      volumes:
-        - /srv/newsblur/docker/volumes/redis:/data
-        - /srv/newsblur/config/redis.conf:/usr/local/etc/redis_server.conf
-        - /srv/newsblur/config/redis_docker.conf:/etc/redis_server.conf
-        - /srv/newsblur/docker/volumes/redis.var.lib:/var/lib/redis
+    - redis