Merge pull request #2533 from edx/feanil/update_cd_db

Course Discovery default db is setup for docker.

docker/build/course_discovery/ansible_overrides.yml

 ---
-course_discovery_gunicorn_host: 0.0.0.0
\ No newline at end of file
+course_discovery_gunicorn_host: 0.0.0.0
+COURSE_DISCOVERY_MYSQL: 'db'

playbooks/roles/course_discovery/defaults/main.yml

@@ -20,7 +20,7 @@ COURSE_DISCOVERY_NGINX_PORT: 18381
 COURSE_DISCOVERY_SSL_NGINX_PORT: 48381
 
 COURSE_DISCOVERY_DEFAULT_DB_NAME: 'course_discovery'
-COURSE_DISCOVERY_MYSQL: 'db'
+COURSE_DISCOVERY_MYSQL: 'localhost'
 # MySQL usernames are limited to 16 characters
 COURSE_DISCOVERY_MYSQL_USER: 'course_discov001'
 COURSE_DISCOVERY_MYSQL_PASSWORD: 'password'

playbooks/roles/course_discovery/tasks/main.yml

@@ -84,8 +84,8 @@
 - name: create databases
   mysql_db:
     login_host: "{{ COURSE_DISCOVERY_DATABASES.default.HOST }}"
-    login_user: "{{ COURSE_DISCOVERY_DB_ADMIN.default.USER }}"
-    login_password: "{{ COURSE_DISCOVERY_DB_ADMIN.default.PASSWORD }}"
+    login_user: "{{ COURSE_DISCOVERY_DB_ADMIN_USER }}"
+    login_password: "{{ COURSE_DISCOVERY_DB_ADMIN_PASSWORD }}"
     db: "{{ COURSE_DISCOVERY_DEFAULT_DB_NAME }}"
     state: present
     encoding: utf8
@@ -95,11 +95,12 @@
 - name: create database users
   mysql_user:
     login_host: "{{ COURSE_DISCOVERY_DATABASES.default.HOST }}"
-    login_user: "{{ COURSE_DISCOVERY_DB_ADMIN.default.USER }}"
-    login_password: "{{ COURSE_DISCOVERY_DB_ADMIN.default.PASSWORD }}"
+    login_user: "{{ COURSE_DISCOVERY_DB_ADMIN_USER }}"
+    login_password: "{{ COURSE_DISCOVERY_DB_ADMIN_PASSWORD }}"
     name: "{{ item.name }}"
     host: "%"
-    name: "{{ item.password }}"
+    name: "{{ item.name }}"
+    password: "{{ item.password }}"
     priv: "{{ COURSE_DISCOVERY_DEFAULT_DB_NAME }}.*:ALL"
   with_items:
     - name: "{{ COURSE_DISCOVERY_DATABASES.default.USER }}"