add the script to build the docker

.gitlab-ci.yml

+# This file is a template, and might need editing before it works on your project.
+# Official docker image.
+image: docker:latest
+
+stages:
+  - build
+
+services:
+  - docker:18.09.7-dind
+
+variables:
+    DOCKER_DRIVER: overlay
+    DOCKER_HOST: tcp://localhost:2375
+
+
+before_script:
+  - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+
+build-master:
+  stage: build
+  script:
+    - bash build-docker-devfile-registry.sh
+    - docker push "$CI_REGISTRY/$CI_PROJECT_PATH:latest"
+
+  only:
+    - master
+