TMSS-146: Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -15,10 +15,17 @@ prepare_RAServices:
   script:
     - docker build -t ci_raservices -f SubSystems/RAServices/Dockerfile .
 
-prepare_RAServices:
+prepare_ci_base_docker_image:
+  stage: prepare
+  script:
+    - docker build -t ci_base -f  Docker/lofar-ci/Dockerfile_ci_base .
+
+prepare_ci_sas_docker_image:
   stage: prepare
   script:
     - docker build -t ci_sas -f  Docker/lofar-ci/Dockerfile_ci_sas .
+  dependencies:
+    - prepare_ci_base_docker_image
 
 #
 # BUILD STAGE
@@ -58,7 +65,7 @@ build_TMSS:
     - make -j 6
     - make install
   dependencies:
-    - prepare_RAServices
+    - prepare_ci_sas_docker_image
   artifacts:
     expire_in: 6 hours
     paths: