Added volume to store discovery's assets

This will ensure that uploads remain despite containers being dropped and re-created.

LEARNER-2469

docker-compose.yml

@@ -108,6 +108,8 @@ services:
     image: edxops/discovery:latest
     ports:
       - "18381:18381"
+    volumes:
+      - discovery_assets:/edx/var/discovery/
 
   ecommerce:
     command: bash -c 'source /edx/app/ecommerce/ecommerce_env && while true; do python /edx/app/ecommerce/ecommerce/manage.py runserver 0.0.0.0:18130; sleep 2; done'
@@ -187,8 +189,9 @@ services:
 
 
 volumes:
+  discovery_assets:
+  edxapp_lms_assets:
+  edxapp_studio_assets:
   elasticsearch_data:
   mongo_data:
   mysql_data:
-  edxapp_lms_assets:
-  edxapp_studio_assets:

provision-discovery.sh

 # Provisioning script for the discovery service
 ./provision-ida.sh discovery 18381
 
+docker-compose exec discovery bash -c 'rm -rf /edx/var/discovery/*'
 docker-compose exec discovery bash -c 'source /edx/app/discovery/discovery_env && python /edx/app/discovery/discovery/manage.py create_or_update_partner --site-id 1 --site-domain localhost:18381 --code edx --name edX --courses-api-url "http://edx.devstack.lms:18000/api/courses/v1/" --ecommerce-api-url "http://edx.devstack.ecommerce:18130/api/v2/" --organizations-api-url "http://edx.devstack.lms:18000/api/organizations/v0/" --oidc-url-root "http://edx.devstack.lms:18000/oauth2" --oidc-key discovery-key --oidc-secret discovery-secret'
 docker-compose exec discovery bash -c 'source /edx/app/discovery/discovery_env && python /edx/app/discovery/discovery/manage.py refresh_course_metadata'
 docker-compose exec discovery bash -c 'source /edx/app/discovery/discovery_env && python /edx/app/discovery/discovery/manage.py update_index --disable-change-limit'