stages:
  - dependencies
  - build
  - dockerize
  - deploy

variables:
  NAMESPACE: sites
  APP_NAME: tomcode
  VERSION: latest
  MOUNT_PATH: /data
  STORAGE_SIZE: 128Mi
  URL: tomcode.io

📚 Dependencies:
  stage: dependencies
  image: node:latest
  cache:
    - key:
        files:
          - package-lock.json
      paths:
        - .npm/
        - node_modules/
      policy: pull-push
  script:
    - echo "Downloading dependencies..."
    - npm ci --cache .npm --prefer-offline
    - echo "Dependencies downloaded successfully."
  only:
    - main
  
🔨 Build:
  stage: build
  image: node:12-alpine
  cache:
    - key:
        files:
          - package-lock.json
      paths:
        - .npm/
        - node_modules/
      policy: pull
    - key: "$APP_NAME:$CI_COMMIT_REF_SLUG"
      paths:
        - build/
      policy: pull-push
  script:
    - echo "Compiling the code..."
    - npm run build --cache .npm --prefer-offline
    - echo "Compile complete."

🐳 Dockerize:
  stage: dockerize
  image: docker:stable
  services:
    - docker:stable-dind
  variables:
    DOCKER_HOST: tcp://docker:2376
    DOCKER_TLS_CERTDIR: "/certs"
    DOCKER_TLS_VERIFY: 1
    DOCKER_CERT_PATH: "$DOCKER_TLS_CERTDIR/client"
  cache:
    - key: "$APP_NAME:$CI_COMMIT_REF_SLUG"
      paths:
        - build/
      policy: pull-push
  before_script:
    - echo "Logging into docker..."
    - docker login -u ${DOCKER_USERNAME} -p ${DOCKER_PASSWORD}
    - echo "Login successful."
  script:
    - echo "Building docker image..."
    - docker build -t $DOCKER_USERNAME/$APP_NAME:latest -f ./deploy/Dockerfile .
    - echo "Docker image built, pushing to repository..."
    - docker push $DOCKER_USERNAME/$APP_NAME:latest
    - echo "Image successfully pushed."
    
🚀 Deploy:
  stage: deploy
  image: bitnami/kubectl
  before_script:
    - echo $KUBE_CONFIG | base64 -d > config
    - mv config ~/.kube/
    - echo "Preparing deployment.yaml..."
    - cd deploy
    - sed -i "s|{{NAMESPACE}}|$NAMESPACE|g" ./deployment.yaml
    - sed -i "s|{{APP_NAME}}|$APP_NAME|g" ./deployment.yaml
    - sed -i "s|{{VERSION}}|$VERSION|g" ./deployment.yaml
    - sed -i "s|{{MOUNT_PATH}}|$MOUNT_PATH|g" ./deployment.yaml
    - sed -i "s|{{STORAGE_SIZE}}|$STORAGE_SIZE|g" ./deployment.yaml
    - sed -i "s|{{DOCKER_USERNAME}}|${DOCKER_USERNAME}|g" ./deployment.yaml
    - sed -i "s|{{URL}}|$URL|g" ./deployment.yaml
    - cat ./deployment.yaml
    - echo "Deployment prepared."
  script:
    - echo "Deploying application..."
    - kubectl config set-context --current --namespace=$NAMESPACE
    - kubectl apply -f ./deployment.yaml
    - kubectl rollout restart deploy $APP_NAME --namespace $NAMESPACE
    - echo "Application successfully deployed."
  only:
    - main