use common ci script

.gitlab-ci.yml

@@ -1,26 +1,6 @@
-image: docker:stable
-
-stages:
-        - build
-
-variables:
-        IMAGE_NAME: registry.hottis.de/dockerized/build-env-arduino
-        HUB_IMAGE_NAME: wollud1969/build-env-arduino
-
-build:
-        stage: build
-        tags:
-                - hottis
-                - linux
-                - docker
-        script: 
-                - VERSION=`cat VERSION`
-                - echo "Version is $VERSION"
-                - docker build --tag $HUB_IMAGE_NAME:latest --tag $HUB_IMAGE_NAME:$VERSION --tag $IMAGE_NAME:latest --tag $IMAGE_NAME:$VERSION .
-                - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
-                - docker push $IMAGE_NAME:latest
-                - docker push $IMAGE_NAME:$VERSION
-                - docker login -u $DOCKER_HUB_LOGIN -p $DOCKER_HUB_PASSWORD
-                - docker push $HUB_IMAGE_NAME:latest
-                - docker push $HUB_IMAGE_NAME:$VERSION
+include:
+        - project: dockerized/commons
+          ref: master
+          file: gitlab-ci-template.yml
 
+