Added a redme explaining the hard-coded path in docker-yaml

dockers/README.md

+# Maintenance for customizations
+
+### Footer
+The DLS Service has a custom footer to contribute to the consortium image of the eFlows Project. The design of the custom footer is part of templates/main.html. This file is being injected as a volume in docker-compose.yaml, thus overriding the existing template from the public airflow image. For testing reasons, the path has been hard-coded in the docker-compose.yaml. 
+
+### Updates
+ Taking a hard-coded path approach means that with every update of the official airflow image, the currect main.html file has to be pulled anew from the official container. 
+ 
+ For example:
+
+ ```docker exec airflow_airflow-webserver_1 find /home/airflow/ | grep main.html ```
+ 
+ Copy this file into the local repository and substitute the ```<footer>``` section with the custom DLS ```%footer%``` block. In case of a new python version in the official airflow image (and container) you will need to adjust the new path in the volume section of the docker-compose.yaml. 
\ No newline at end of file

scripts/cloudinit.yml

@@ -49,16 +49,15 @@ users:
 runcmd:
   - 'git clone https://gitlab.jsc.fz-juelich.de/eflows4hpc-wp2/data-logistics-service.git /home/maria/data-logistics-service'
   - cd /home/maria
-  - mkdir airflow-testing
-  - cd airflow-testing
+  - mkdir airflow
+  - cd airflow
   - mkdir -p ./dags ./logs ./plugins ./config ./templates
   - cp ../data-logistics-service/dags/* ./dags
   - cp -r ../data-logistics-service/plugins/* ./plugins
   - cp ../data-logistics-service/config/* ./config
   - cp ../data-logistics-service/templates/* ./templates
-  # - echo "AIRFLOW_UID=0\nAIRFLOW_GID=0" > ../data-logistics-service/dockers/.env #for root
+  - echo -e "AIRFLOW_UID=$(id -u)" > ../data-logistics-service/dockers/.env #for root
   - export AIRFLOW_UID=$(id -u)
-  - export AIRFLOW_GID=0
-  - docker-compose -f ../data-logistics-service/dockers/docker-compose.yaml --project-directory . --verbose up airflow-init
-  - docker-compose -f ../data-logistics-service/dockers/docker-compose.yaml --project-directory . up
+  - docker-compose -f ~/data-logistics-service/dockers/docker-compose.yaml --project-directory ~/airflow --verbose up airflow-init
+  - docker-compose -f ~/data-logistics-service/dockers/docker-compose.yaml --project-directory ~/airflow . up
   # - /bin/bash ../data-logistics-service/scripts/deployment.sh .