sandbox-ora: Add SERVICE_VARIANT to ORA to customize filenames

This is necessary to be able to get several services using the
`/opt/wwc/env.json` & `/opt/wwc/auth.json` files. The configuration
files would get overwitten when this is used by several different
services cohabiting on a single instance

playbooks/roles/ora/tasks/deploy.yml

@@ -85,7 +85,7 @@
   - deploy
 
 - name: ora | syncdb and migrate
-  shell: sudo -u {{ ora_user }} {{ora_venv_dir}}/bin/django-admin.py syncdb --migrate --noinput --settings=edx_ora.aws --pythonpath={{ora_code_dir}}
+  shell: sudo -u {{ ora_user }} SERVICE_VARIANT=ora {{ora_venv_dir}}/bin/django-admin.py syncdb --migrate --noinput --settings=edx_ora.aws --pythonpath={{ora_code_dir}}
   when: migrate_db is defined and migrate_db|lower == "yes"
   notify:
     - ora | restart edx-ora
@@ -96,7 +96,7 @@
   - deploy
 
 - name: ora | create users
-  shell: sudo -u {{ ora_user }} {{ora_venv_dir}}/bin/django-admin.py update_users --settings=edx_ora.aws --pythonpath={{ora_code_dir}}
+  shell: sudo -u {{ ora_user }} SERVICE_VARIANT=ora {{ora_venv_dir}}/bin/django-admin.py update_users --settings=edx_ora.aws --pythonpath={{ora_code_dir}}
   notify:
     - ora | restart edx-ora
     - ora | restart edx-ora-celery

playbooks/roles/ora/tasks/main.yml

@@ -15,12 +15,12 @@
   - ora
 
 - name: ora | create ora application config
-  template: src=ora.env.json.j2 dest={{ora_code_dir}}/../env.json mode=0640 owner={{ ora_user }} group=adm
+  template: src=ora.env.json.j2 dest={{ora_code_dir}}/../ora.env.json mode=0640 owner={{ ora_user }} group=adm
   tags:
   - ora
 
 - name: ora | create ora auth file
-  template: src=ora.auth.json.j2 dest={{ora_code_dir}}/../auth.json mode=0640 owner={{ ora_user }} group=adm
+  template: src=ora.auth.json.j2 dest={{ora_code_dir}}/../ora.auth.json mode=0640 owner={{ ora_user }} group=adm
   tags:
   - ora
 

playbooks/roles/ora/templates/edx-ora-celery.conf.j2

@@ -10,6 +10,7 @@ respawn
 respawn limit 3 30
 
 env DJANGO_SETTINGS_MODULE=edx_ora.aws
+env SERVICE_VARIANT=ora
 
 chdir {{ ora_code_dir }}
 setuid {{ ora_user }}

playbooks/roles/ora/templates/edx-ora.conf.j2

@@ -14,6 +14,7 @@ env WORKERS={{ ora_gunicorn_workers }}
 env PORT={{ ora_gunicorn_port }}
 env LANG=en_US.UTF-8
 env DJANGO_SETTINGS_MODULE=edx_ora.aws
+env SERVICE_VARIANT=ora
 
 pre-start script
 end script