Make the database parameters configurable

This means you don't have to override the entire ANALYTICS_API_DATABASES
just to specify a user/password/host.

playbooks/roles/analytics_api/defaults/main.yml

@@ -20,9 +20,18 @@ ANALYTICS_API_PIP_EXTRA_ARGS: "-i {{ COMMON_PYPI_MIRROR_URL }}"
 ANALYTICS_API_NGINX_PORT: "18100"
 
 ANALYTICS_API_DEFAULT_DB_NAME: 'analytics-api'
+ANALYTICS_API_DEFAULT_USER: 'api001'
+ANALYTICS_API_DEFAULT_PASSWORD: 'password'
+ANALYTICS_API_DEFAULT_HOST: 'localhost'
+ANALYTICS_API_DEFAULT_PORT: '3306'
 ANALYTICS_API_DEFAULT_MYSQL_OPTIONS:
   connect_timeout: 10
+
 ANALYTICS_API_REPORTS_DB_NAME: 'reports'
+ANALYTICS_API_REPORTS_USER: 'reports001'
+ANALYTICS_API_REPORTS_PASSWORD: 'password'
+ANALYTICS_API_REPORTS_HOST: 'localhost'
+ANALYTICS_API_REPORTS_PORT: '3306'
 ANALYTICS_API_REPORTS_MYSQL_OPTIONS:
   connect_timeout: 10
 
@@ -31,19 +40,19 @@ ANALYTICS_API_DATABASES:
   default:
     ENGINE: 'django.db.backends.mysql'
     NAME: '{{ ANALYTICS_API_DEFAULT_DB_NAME }}'
-    USER: 'api001'
-    PASSWORD: 'password'
-    HOST: 'localhost'
-    PORT: '3306'
+    USER: '{{ ANALYTICS_API_DEFAULT_USER }}'
+    PASSWORD: '{{ ANALYTICS_API_DEFAULT_PASSWORD }}'
+    HOST: '{{ ANALYTICS_API_DEFAULT_HOST }}'
+    PORT: '{{ ANALYTICS_API_DEFAULT_PORT }}'
     OPTIONS: "{{ ANALYTICS_API_DEFAULT_MYSQL_OPTIONS }}"
   # read-only user
   reports:
     ENGINE: 'django.db.backends.mysql'
     NAME: '{{ ANALYTICS_API_REPORTS_DB_NAME }}'
-    USER: 'reports001'
-    PASSWORD: 'password'
-    HOST: 'localhost'
-    PORT: '3306'
+    USER: '{{ ANALYTICS_API_REPORTS_USER }}'
+    PASSWORD: '{{ ANALYTICS_API_REPORTS_PASSWORD }}'
+    HOST: '{{ ANALYTICS_API_REPORTS_HOST }}'
+    PORT: '{{ ANALYTICS_API_REPORTS_PORT }}'
     OPTIONS: "{{ ANALYTICS_API_REPORTS_MYSQL_OPTIONS }}"
 
 ANALYTICS_API_VERSION: "master"