Quote OS_PASSWORD with single quotes

Use single quotes around OS_PASSWORD to prevent shell variable
expansion. Add a test to validate contents of the openrc file.

Closes-Bug: 1663185
Change-Id: I4b1e7b5cb83061ea35108db545fdfa33cef037a5

templates/openrc.j2

@@ -11,7 +11,7 @@ export NOVA_ENDPOINT_TYPE={{ openrc_nova_endpoint_type }}
 export OS_ENDPOINT_TYPE={{ openrc_os_endpoint_type }}
 export OS_INTERFACE={{ openrc_os_endpoint_type }}
 export OS_USERNAME={{ openrc_os_username }}
-export OS_PASSWORD="{{ openrc_os_password }}"
+export OS_PASSWORD='{{ openrc_os_password }}'
 export OS_PROJECT_NAME={{ openrc_os_tenant_name }}
 export OS_TENANT_NAME={{ openrc_os_tenant_name }}
 export OS_AUTH_URL={{ openrc_os_auth_url }}

tests/test.yml

@@ -18,14 +18,15 @@
   roles:
     - role: "openstack_openrc"
   post_tasks:
-    - name: Check /root/openrc file
-      stat:
+    - name: Slurp /root/openrc file
+      slurp:
         path: /root/openrc
       register: openrc_file
     - name: Check role functions
       assert:
         that:
-          - "openrc_file.stat.exists"
+          - "'export OS_USER_DOMAIN_NAME=Default' in (openrc_file.content | b64decode)"
+          - "'export OS_PASSWORD=\\'secrete\\'' in (openrc_file.content | b64decode)"
     - name: Check /root/.config/openstack/clouds.yaml file
       stat:
         path: /root/.config/openstack/clouds.yaml