correct location of insights db changes

playbooks/roles/insights/defaults/main.yml

@@ -61,15 +61,20 @@ INSIGHTS_LEARNER_API_LIST_DOWNLOAD_FIELDS: !!null
 
 INSIGHTS_DATABASE_NAME: 'dashboard'
 
+INSIGHTS_DATABASE_USER: rosencrantz
+INSIGHTS_DATABASE_PASSWORD: secret
+INSIGHTS_DATABASE_HOST: "db.{{ DOCKER_TLD  }}"
+INSIGHTS_DATABASE_PORT: 3306
+
 INSIGHTS_DATABASES:
   # rw user
   default:
     ENGINE: 'django.db.backends.mysql'
     NAME: '{{ INSIGHTS_DATABASE_NAME }}'
-    USER: 'rosencrantz'
-    PASSWORD: 'secret'
-    HOST: '127.0.0.1'
-    PORT: '3306'
+    USER: '{{ INSIGHTS_DATABASE_USER }}'
+    PASSWORD: '{{ INSIGHTS_DATABASE_PASSWORD }}'
+    HOST: "{{ INSIGHTS_DATABASE_HOST }}"
+    PORT: '{{ INSIGHTS_DATABASE_PORT }}'
 
 INSIGHTS_LMS_COURSE_SHORTCUT_BASE_URL: "URL_FOR_LMS_COURSE_LIST_PAGE"