Do all images in directory

.gitlab-ci.yml

@@ -4,7 +4,7 @@ services:
   - docker:dind
 
 variables:
-  CONTAINER_IMAGE_BASE: registry.gitlab.haskell.org/ghc/ghc
+  CONTAINER_IMAGE_BASE: registry.gitlab.haskell.org/$CI_PROJECT_NAME
   DOCKER_HOST: tcp://docker:2375
   DOCKER_DRIVER: overlay2
 
@@ -14,9 +14,12 @@ before_script:
 build:
   stage: build
   script:
-    - export CONTAINER_IMAGE=$CONTAINER_IMAGE_BASE/linters
-    - docker pull $CONTAINER_IMAGE:latest || true
-    - docker build --cache-from $CONTAINER_IMAGE:latest --tag $CONTAINER_IMAGE:$CI_COMMIT_SHA --tag $CONTAINER_IMAGE:latest linters/
-    - docker push $CONTAINER_IMAGE:$CI_COMMIT_SHA
-    - docker push $CONTAINER_IMAGE:latest
+    - for dir in $(ls -d */)
+      do
+        CONTAINER_IMAGE=$CONTAINER_IMAGE_BASE/${dir::-1}
+        docker pull $CONTAINER_IMAGE:latest || true
+        docker build --cache-from $CONTAINER_IMAGE:latest --tag $CONTAINER_IMAGE:$CI_COMMIT_SHA --tag $CONTAINER_IMAGE:latest linters/
+        docker push $CONTAINER_IMAGE:$CI_COMMIT_SHA
+        docker push $CONTAINER_IMAGE:latest
+      done