Docker setup: add nginx -> MSL-API dependency

The MSL-API container needs to be up before the Nginx
container can start. Otherwise Nginx may fail to start
due to the upstream server (MSL-API) not being available yet.

Author: stsnel

docker/docker-compose.yml

@@ -48,6 +48,8 @@ services:
   nginx:
     container_name: nginx
     image: ghcr.io/utrechtuniversity/epos-msl-cat-nginx:latest
+    depends_on:
+      - mslapi_webserver
     environment:
       - EPOS_MSL_HOST=${EPOS_MSL_HOST}
       - EPOS_MSL_HOST_PORT=${EPOS_MSL_HOST_PORT}