Revert "build both dockerfile"

This reverts commit 8decd4f3

.gitlab-ci.yml

@@ -10,24 +10,20 @@ build:
   script:
     - docker --version
     # pull the latest build on master
-    - docker pull "$CI_REGISTRY_IMAGE/master/$DOCKERFILE_NAME:latest" || true
+    - docker pull "$CI_REGISTRY_IMAGE/master:latest" || true
     # pull the latest build on this branch
-    - docker pull "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG/$DOCKERFILE_NAME:latest" || true
+    - docker pull "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:latest" || true
     # build the image while passing commit SHA and tagging the image with it
     - docker build
       --build-arg CI_COMMIT_REF_SLUG
       --build-arg CI_COMMIT_SHA
-      --cache-from "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG/$DOCKERFILE_NAME:latest"
-      --cache-from "$CI_REGISTRY_IMAGE/master/$DOCKERFILE_NAME:latest"
-      --tag "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG/$DOCKERFILE_NAME:$CI_COMMIT_SHA"
-      --tag "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG/$DOCKERFILE_NAME:latest"
-      -f $DOCKERFILE_NAME
+      --cache-from "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:latest"
+      --cache-from "$CI_REGISTRY_IMAGE/master:latest"
+      --tag "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA"
+      --tag "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:latest"
+      -f Dockerfile2
       ./
     # push image as latest for the current branch
     - docker push "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:latest"
     # push image tagged with its sha
     - docker push "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA"
-  parallel:
-    matrix:
-      - DOCKERFILE_NAME: [Dockerfile, Dockerfile2]
-