Added script for cleaning docker images and contianers after build

.gitlab-ci.yml

@@ -203,9 +203,7 @@ clean_docker:
   stage: clean
   when: always
   script:
-    - docker rm `docker ps -q -f "status=exited"`
-    - docker images -a --format "{{.Repository}}:{{.Tag}}" | grep _mdanse_ | xargs docker rmi -f
-    - docker rmi `docker images -q -f "dangling=true"`
+    - ${CI_PROJECT_DIR}/BuildServer/Docker/clean.sh
   tags:
     - docker
     - sci

BuildServer/Docker/clean.sh

+# Return the docker containers that are exited
+exited_containers=`docker ps -q -f "status=exited"`
+
+# If some have been found, remove them
+if [ -n "$exited_containers" ]
+then
+    docker rm -f ${exited_containers}
+fi
+
+# Return the docker images corresponding to MDANSE
+images=`docker images -a --format "{{.Repository}}:{{.Tag}}" | grep _mdanse_` 
+
+# If some have been found, remove them
+if [ -n "$images" ]
+then
+    docker rmi -f ${images}
+fi
+