Read db password from env

docker-compose.yml

@@ -9,6 +9,8 @@ services:
         volumes:
             - ./config:/srv/abt/config
             - /var/run/docker.sock:/var/run/docker.sock
+        environment:
+            - PASSWORD: ${POSTGRES_PASSWORD}
         restart: "no"
         ports:
             - 8080:8080