dockerize

.gitlab-ci.yml

 image: python:3-buster
 
+stages:
+  - test
+  - build
+
 before_script:
   - pip install -r requirements-dev.txt
 
 analyze:
+    stage: test
     script:
-    - bandit whatformat/*.py whatformat/util/*.py
-    - flake8 --config=.flake8 whatformat/*.py whatformat/util/*.py
-    - mypy whatformat/*.py whatformat/util/*.py
-    - pydocstyle whatformat/*.py whatformat/util/*.py
-    - pylint whatformat/*.py whatformat/util/*.py
+      - bandit whatformat/*.py whatformat/util/*.py
+      - flake8 --config=.flake8 whatformat/*.py whatformat/util/*.py
+      - mypy whatformat/*.py whatformat/util/*.py
+      - pydocstyle whatformat/*.py whatformat/util/*.py
+      - pylint whatformat/*.py whatformat/util/*.py
 
 test:
+    stage: test
     script:
-    - python3 -m unittest
+      - python3 -m unittest
+
+build_image:
+  stage: build
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  variables:
+    IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
+  script:
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG
+  only:
+    - tags

Dockerfile

+FROM python:3-buster
+WORKDIR /opt/whatformat
+
+COPY / /opt/whatformat
+RUN pip install -r /opt/whatformat/requirements.txt
+
+CMD gunicorn -b 0.0.0.0:80 whatformat.app:app
+
+EXPOSE 80/tcp

requirements.txt

 python-dateutil==2.8.1
 Flask==1.1.1
 Flask-Caching==1.8.0
+gunicorn==20.0.4