Add gitlab ci

.gitlab-ci.yml

@@ -0,0 +1,30 @@
+build-vue:
+  image: docker:latest
+  stage: build
+  services:
+    - docker:dind
+  script:
+    - cd frontend
+    - docker build --pull -t vue .
+  only:
+    - merge_requests
+
+
+build-backend:
+  image: docker:latest
+  stage: build
+  services:
+    - docker:dind
+  script:
+    - cd backend
+    - docker build --pull -t backend .
+  only:
+    - merge_requests
+
+build-android:
+  image: debian
+  stage: build
+  script: 
+    - echo "To be done"
+  only: 
+    - merge_requests