added gitlab ci pipeline

.gitlab-ci.yml

@@ -0,0 +1,26 @@
+image: "gitlab/dind"
+
+stages:
+  - build
+  - dockerize
+
+Build:
+  stage: build
+  image: alpine:latest
+  before_script:
+    - 'which curl || ( apk update && apk add curl )'
+    - curl -L https://github.com/gohugoio/hugo/releases/download/v0.90.0/hugo_0.90.0_Linux-64bit.tar.gz
+    - tar -zxf hugo_0.90.0_Linux-64bit.tar.gz
+  script:
+    - hugo
+  artifacts:
+    paths:
+      - public
+
+Dockerize:
+  stage: dockerize
+  before_script:
+    - docker login $CI_REGISTRY -u ahmza -p $CI_DOCKER_ACCESS_TOKEN
+  script:
+    - docker build -t $CI_REGISTRY/ahmza/blog .
+    - docker push $CI_REGISTRY/ahmza/blog