Fix database connection

osp/docker-compose.yml

@@ -11,8 +11,10 @@ services:
       - osp-db
       - osp-redis
     container_name: osp-app
-    entrypoint: ["/opt/osp/setup/docker/wait-for-it.sh", "db:3306", "-t", "60", "--", "/opt/osp/setup/docker/entrypoint.sh"]
+    entrypoint: ["/opt/osp/setup/docker/wait-for-it.sh", "osp-db:3306", "-t", "60", "--", "/opt/osp/setup/docker/entrypoint.sh"]
     env_file: live.env
+    environment:
+      - DB_URL=mysql+pymysql://${MYSQL_USER}:${MYSQL_PASSWORD}@${MYSQL_HOST}/${MYSQL_DATABASE}
     image: deamos/openstreamingplatform:latest
     labels:
       # Watchtower

osp/live.env.tpl

@@ -11,7 +11,6 @@ REDIS_HOST_PASSWORD=password_redis
 
 # osp
 OSP_ROOT=/home/compute/services/osp
-DB_URL=mysql+pymysql://osp:password_db@osp-db/osp?charset=utf8mb4 # Change these according to above set parameters following this schema mysql+pymysql://username:password@localhost/osp?charset=utf8mb4
 FLASK_SECRET=very_secret_key_change_me
 FLASK_SALT=very_secret_salt_key_change_me
 REDIS_PASSWORD=password_redis