Update gerrit rename playbook for docker-compose

Starting and stopping gerrit is now done by our new docker-compose
overlord. Update the rename playbook to use it for stopping at
the beginning, and then use the start tasks of the gerrit role
to start it at the end.

Change-Id: Ibd07f9269771dfa70fbefbba69b905f165e018af

playbooks/rename_repos.yaml

@@ -6,7 +6,9 @@
     - include_vars: "{{ repolist }}"
 
     - name: Stop Gerrit
-      shell: invoke-rc.d gerrit stop
+      shell:
+        cmd: docker-compose down
+        chdir: /etc/gerrit-compose/
 
     - name: Update account_project_watches in gerrit database
       shell: echo 'update account_project_watches set project_name = "{{ item.new }}" where project_name = "{{ item.old }}";' | mysql --defaults-file=/root/.gerrit_db.cnf reviewdb
@@ -120,7 +122,12 @@
   tasks:
 
     - name: Start gerrit
-      shell: invoke-rc.d gerrit start
+      include_role:
+        name: gerrit
+        vars:
+          gerrit_run_init: true
+          gerrit_run_compose_up: true
+        tasks_from: start
 
 - hosts: review
   gather_facts: False