GitLab CI/CD

# .gitlab-ci.yml
stages:
  - test
  - build
  - deploy

variables:
  DOCKER_REGISTRY: "registry.example.com"
  APP_NAME: "my-app"

test:
  stage: test
  script:
    - npm install
    - npm run test
  coverage: '/Coverage: \d+\.\d+%/'

build:
  stage: build
  script:
    - docker build -t $DOCKER_REGISTRY/$APP_NAME:$CI_COMMIT_SHA .
    - docker push $DOCKER_REGISTRY/$APP_NAME:$CI_COMMIT_SHA
  only:
    - main
    - develop

deploy_staging:
  stage: deploy
  script:
    - kubectl set image deployment/$APP_NAME $APP_NAME=$DOCKER_REGISTRY/$APP_NAME:$CI_COMMIT_SHA
  environment:
    name: staging
  only:
    - develop

deploy_production:
  stage: deploy
  script:
    - kubectl set image deployment/$APP_NAME $APP_NAME=$DOCKER_REGISTRY/$APP_NAME:$CI_COMMIT_SHA
  environment:
    name: production
  when: manual
  only:
    - main