Config must be available to federated backend

docker-compose.yml

@@ -67,3 +67,4 @@ services:
     container_name: wgapi-fed-backend
     volumes:
       - '/var/log/wgapi.log:/var/log/apache2/error.log'
+      - './etc:/etc/wgapi:ro'

docker-compose.yml.sample

@@ -67,3 +67,4 @@ services:
     container_name: wgapi-fed-backend
     volumes:
       - '/var/log/wgapi.log:/var/log/apache2/error.log'
+      - './etc:/etc/wgapi:ro'