Added Docker build deploy scripts

.gitlab-ci.yml

@@ -1,7 +1,8 @@
 stages:
   - build-eleventy
+  - docker-build
 build-eleventy:
-  stage: build-eleventy
+  stage: build
   image: node:latest
   cache:
     paths:
@@ -14,3 +15,14 @@ build-eleventy:
       - _site/
   only:
     - master
+
+docker_build:
+  stage: build
+  script:
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker build --pull -t $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG .
+    - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
+    - docker tag $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG $CI_REGISTRY_IMAGE:latest
+    - docker push $CI_REGISTRY_IMAGE:latest
+  only:
+  - master