add the pipeline file

.gitlab-ci.yml

+stages:
+  - build
+  - test
+  - deploy
+
+variables:
+  DOCKER_IMAGE_TAG: eval.py
+
+before_script:
+  - apt-get update -qy
+  - apt-get install -y python3 python3-pip
+
+build:
+  stage: build
+
+test:
+  stage: test
+  script:
+    - python3 -m unittest discover
+
+deploy:
+  stage: deploy
+  script:
+    - docker build -t eval.py:$DOCKER_IMAGE_TAG .
+    - docker run -p 9090:9090 eval.py:$DOCKER_IMAGE_TAG