Move database creation into role (cinder)

There is no record for why we implement the database creation outside
of the role in the playbook, when we could do it inside the role.

Implementing it inside the role allows us to reduce the quantity of
group_vars duplicated from the role, and allows us to better document
the required variables in the role. The delegation can still be done
as it is done in the playbook too.

In this patch we remove the test-vars which were duplicated from the
role, and remove the DB setup tasks as they are no longer required.

Change-Id: I11e0e9538d1fcebba55732cd20fcbf8aaf7516d1
Depends-On: https://review.openstack.org/571724

test-install-cinder.yml

@@ -41,10 +41,6 @@
         - "'oslomsg_rpc_all' in groups"
         - "groups['oslomsg_rpc_all'] | length > 0"
 
-    - include: create-grant-db.yml
-      db_name: "{{ cinder_galera_database }}"
-      db_password: "{{ cinder_container_mysql_password }}"
-
   roles:
     - role: "os_cinder"
   vars_files:

test-vars.yml

@@ -317,7 +317,6 @@ cinder_backends_rbd_inuse: false
 cinder_ceph_client: cinder
 cinder_container_mysql_password: "SuperSecrete"
 cinder_developer_mode: true
-cinder_galera_address: "{{ test_galera_host }}"
 cinder_git_install_branch: "{{ test_branch }}"
 cinder_glance_api_servers: "{{ glance_api_servers }}"
 cinder_profiler_hmac_key: "secrete"
@@ -341,8 +340,6 @@ cinder_rabbitmq_use_ssl: "{{ rabbitmq_use_ssl }}"
 cinder_rabbitmq_password: "{{ rabbitmq_password }}"
 cinder_rabbitmq_userid: cinder
 cinder_rabbitmq_vhost: /cinder
-cinder_galera_user: cinder
-cinder_galera_database: cinder
 cinder_service_password: "secrete"
 cinder_venv_tag: "testing"
 cinder_service_port: 8776