change how we reference django users for XQUEUE

playbooks/roles/xqueue/defaults/main.yml

@@ -33,8 +33,8 @@ XQUEUE_AWS_ACCESS_KEY_ID : ''
 XQUEUE_AWS_SECRET_ACCESS_KEY : ''
 XQUEUE_BASIC_AUTH_USER: 'edx'
 XQUEUE_BASIC_AUTH_PASSWORD: 'edx'
-XQUEUE_DJANGO_USER: 'lms'
-XQUEUE_DJANGO_PASSWORD: 'password'
+XQUEUE_DJANGO_USERS:
+  lms: 'password'
 XQUEUE_RABBITMQ_USER: 'edx'
 XQUEUE_RABBITMQ_PASS: 'edx'
 XQUEUE_RABBITMQ_HOSTNAME: 'localhost'
@@ -61,7 +61,7 @@ xqueue_auth_config:
   AWS_ACCESS_KEY_ID:  $XQUEUE_AWS_ACCESS_KEY_ID
   AWS_SECRET_ACCESS_KEY: $XQUEUE_AWS_SECRET_ACCESS_KEY
   REQUESTS_BASIC_AUTH: [$XQUEUE_BASIC_AUTH_USER, $XQUEUE_BASIC_AUTH_PASSWORD]
-  USERS: { '{{XQUEUE_DJANGO_USER}}' : $XQUEUE_DJANGO_PASSWORD }
+  USERS: "{{ XQUEUE_DJANGO_USERS }}"
   DATABASES:
     default:
       ENGINE: "django.db.backends.mysql"