GitLab CI/CD w/ Docker on backend_test

stages:
  - build
  - check
  - test

services:
  - docker:dind

before_script:
  - docker run -d --name rabbitmq -p 5672:5672 -p 15672:15672 rabbitmq:3-management

checkstyle-backend:
  image: ubuntu:20.04
  stage: check
  before_script:
    - apt -y update
    - apt -y install apt-utils
    - apt -y install net-tools python3.8 python3-pip mysql-client libmysqlclient-dev
    - apt -y upgrade
  script:
    - pip install --upgrade pip
    - pip install virtualenv
    - cd backend/
    - virtualenv venv # Create virutalenv name `venv`
    - source venv/bin/activate # activate virtual environment
    - pip install --upgrade pip
    - pip install --ignore-installed -r requirements.txt # update requirements
    - pycodestyle app/
    - deactivate


backend-build:
  image: ubuntu:20.04
  stage: build
  before_script:
    - apt -y update
    - apt -y install apt-utils
    - apt -y install net-tools python3.8 python3-pip mysql-client libmysqlclient-dev
    - apt -y upgrade
  script:
    - pip install --upgrade pip
    - pip install virtualenv
    - cd backend/
    - virtualenv venv # Create virutalenv name `venv`
    - source venv/bin/activate # activate virtual environment
    - pip install --upgrade pip
    - pip install -r requirements.txt # update requirements
    - python3 manage.py makemigrations
    - python3 manage.py migrate
    - python3 manage.py check
    - deactivate


backend-test:
  image: docker:stable
  stage: test
  before_script:
    - apk add --no-cache curl python3 py3-pip
    - pip install --ignore-installed virtualenv
  script:
    - docker pull python:3.8
    - docker run -v $(pwd)/backend:/backend -w /backend python:3.8 sh -c '
        pip install --upgrade pip &&
        pip install virtualenv &&
        virtualenv venv &&
        . venv/bin/activate &&
        pip install --upgrade pip &&
        pip install -r requirements.txt &&
        curl -i -u guest:guest http://rabbitmq:15672/api/whoami &&
        tmux new-session -d -s celery-session "celery -A app worker -l info" &&
        sleep 20 &&
        celery -A app status &&
        coverage run --omit="app/tests/*" manage.py test app/tests &&
        coverage html -d ./coverage/ &&
        coverage report'
  after_script:
    - docker stop rabbitmq
  only:
    refs:
      - merge_requests