Add Enterprise Service worker username and API URL

mattdrayer: Initial commit
fredsmith: Set enterprise API URL to auto-configured root URL base

playbooks/roles/edxapp/defaults/main.yml

@@ -650,6 +650,11 @@ EDXAPP_BLOCK_STRUCTURES_SETTINGS:
   # Maximum number of retries per task.
   TASK_MAX_RETRIES: 5
 
+# Configuration settings needed for the LMS to communicate with the Enterprise service.
+EDXAPP_ENTERPRISE_API_URL: "{{ EDXAPP_LMS_ROOT_URL }}/enterprise/api/v1"
+
+EDXAPP_ENTERPRISE_SERVICE_WORKER_USERNAME: "enterprise_worker"
+
 #-------- Everything below this line is internal to the role ------------
 
 #Use YAML references (& and *) and hash merge <<: to factor out shared settings
@@ -821,6 +826,7 @@ edxapp_generic_auth_config:  &edxapp_generic_auth
   FACEBOOK_APP_ID: "{{ EDXAPP_FACEBOOK_APP_ID }}"
   FACEBOOK_APP_SECRET: "{{ EDXAPP_FACEBOOK_APP_SECRET }}"
   FACEBOOK_API_VERSION: "{{ EDXAPP_FACEBOOK_API_VERSION }}"
+  ENTERPRISE_SERVICE_WORKER_USERNAME: "{{ EDXAPP_ENTERPRISE_SERVICE_WORKER_USERNAME }}"
 
 generic_cache_config: &default_generic_cache
   BACKEND:  'django.core.cache.backends.memcached.MemcachedCache'
@@ -829,6 +835,7 @@ generic_cache_config: &default_generic_cache
 generic_env_config:  &edxapp_generic_env
   ECOMMERCE_PUBLIC_URL_ROOT: "{{ EDXAPP_ECOMMERCE_PUBLIC_URL_ROOT }}"
   ECOMMERCE_API_URL: "{{ EDXAPP_ECOMMERCE_API_URL }}"
+  ENTERPRISE_API_URL: "{{ EDXAPP_ENTERPRISE_API_URL }}"
   COURSE_CATALOG_API_URL: "{{ EDXAPP_COURSE_CATALOG_API_URL }}"
   COURSE_CATALOG_VISIBILITY_PERMISSION: "{{ EDXAPP_COURSE_CATALOG_VISIBILITY_PERMISSION }}"
   COURSE_ABOUT_VISIBILITY_PERMISSION: "{{ EDXAPP_COURSE_ABOUT_VISIBILITY_PERMISSION }}"