Rename env files to match the service naming scheme.

docker-compose.yml

@@ -6,8 +6,8 @@ services:
       - db
       - redis
     env_file:
-      - opaque_database.env
-      - opaque.env
+      - db.env
+      - web.env
     image: gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/opaque:development
     ports:
       - 5000:5000
@@ -21,13 +21,13 @@ services:
   daemon:
     depends_on:
       - db
-    env_file: opaque_database.env
+    env_file: db.env
     image: gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/opaque_daemon:latest
     restart: always
     volumes:
       - $HOME/.docker/config.json:/home/opaque_daemon/.docker/config.json
   db:
-    env_file: opaque_database.env
+    env_file: db.env
     image: postgres:alpine
     restart: always
     volumes: