updated readme for mtu, added submodule pull

.gitlab-ci.yml

 image: docker/compose:latest
 
 before_script:
+  - git submodule update --init --recursive
   - docker version
   - docker-compose version
 

README.md

@@ -24,6 +24,22 @@ docker-compose up
 
 ### Troubleshooting
 
+##### FDA Runner
+
+Hosted at TU Wien 128.130.202.89, only accessible from TU-Network
+
+**Important**
+
+Different MTU for HPC Cluster, edit for Docker to work with bridge mode the `/etc/docker/daemon.json`:
+
+```bash
+{
+    "mtu": 1450
+}
+```
+
+##### Virtual Machine
+
 Ubuntu 20.04 LTS
 
 Use openjdk-11...openjdk-8 does not work.

fda-container-managing-service/Dockerfile

@@ -4,13 +4,13 @@ MAINTAINER Martin Weise <martin.weise@tuwien.ac.at>
 
 COPY ./pom.xml ./
 
-RUN mvn -fn -B dependency:go-offline
+RUN mvn -fn -B dependency:go-offline > /dev/null
 
 COPY ./api ./api
 COPY ./rest-service ./rest-service
 COPY ./services ./services
 
-RUN mvn -q clean package
+RUN mvn -q clean package > /dev/null
 
 ###### SECOND STAGE ######
 FROM openjdk:11-jre-slim as runtime