Use kolla api to set ownership

Kolla provides a way to set ownership of files and directory inside the
containers. Use it instead of running an additional container to do the
job.

Change-Id: I554faf7c797f3997dd3ca854da032437acecf490

docker/services/database/mongodb.yaml

@@ -62,18 +62,13 @@ outputs:
       kolla_config:
         /var/lib/kolla/config_files/mongodb.json:
           command: /usr/bin/mongod --unixSocketPrefix=/var/run/mongodb --config /etc/mongod.conf run
+          permissions:
+            - path: /var/lib/mongodb
+              owner: mongodb:mongodb
+              recurse: true
       docker_config:
         step_2:
-          mongodb_data_ownership:
-            start_order: 0
-            image: *mongodb_image
-            net: host
-            user: root
-            command: ['chown', '-R', 'mongodb:', '/var/lib/mongodb']
-            volumes:
-              - /var/lib/mongodb:/var/lib/mongodb
           mongodb:
-            start_order: 1
             image: *mongodb_image
             net: host
             privileged: false

docker/services/database/mysql.yaml

@@ -71,20 +71,14 @@ outputs:
       kolla_config:
         /var/lib/kolla/config_files/mysql.json:
           command: /usr/bin/mysqld_safe
+          permissions:
+            - path: /var/lib/mysql
+              owner: mysql:mysql
+              recurse: true
       docker_config:
         step_2:
-          mysql_data_ownership:
-            start_order: 0
-            detach: false
-            image: *mysql_image
-            net: host
-            user: root
-            # Kolla does only non-recursive chown
-            command: ['chown', '-R', 'mysql:', '/var/lib/mysql']
-            volumes:
-              - /var/lib/mysql:/var/lib/mysql
           mysql_bootstrap:
-            start_order: 1
+            start_order: 0
             detach: false
             image: *mysql_image
             net: host
@@ -113,7 +107,7 @@ outputs:
                             - {get_param: MysqlRootPassword}
                             - {get_param: [DefaultPasswords, mysql_root_password]}
           mysql:
-            start_order: 2
+            start_order: 1
             image: *mysql_image
             restart: always
             net: host