name: CI/CD Pipeline

on:
  push:
    branches:
      - ci-cd
      
env:
  IMAGE_NAME: people.webapp
  ACR_NAME: people
  ACR_LOGIN_SERVER: people.azurecr.io

jobs:
  build-and-push-docker-image:
    runs-on: ubuntu-latest
  
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        
      - name: Login to Azure
        uses: azure/login@v1
        with:
          creds: ${{ secrets.AZURE_CREDENTIALS }} 

      - name: Login to Azure Container Registry
        run: az acr login -n $ACR_NAME

      - name: Count existing tags and configure the image tag    
        run: |
          COUNT=$(az acr repository show-tags -n $ACR_NAME --repository $IMAGE_NAME -o tsv | wc -l)
          IMAGE_TAG=v$(expr $COUNT + 1)      
          echo "IMAGE_TAG=$IMAGE_TAG" >> $GITHUB_ENV

      - name: Build and push Docker image
        run: |
          FQ_IMAGE_NAME=$ACR_LOGIN_SERVER/$IMAGE_NAME:$IMAGE_TAG
          echo "FQ_IMAGE_NAME=$FQ_IMAGE_NAME" >> $GITHUB_ENV
          docker build -t $FQ_IMAGE_NAME .
          docker push $FQ_IMAGE_NAME

      - name: Logout from Azure Container Registry
        run: docker logout $ACR_LOGIN_SERVER
        
      - name: Cleanup Docker images
        run: docker image rm $FQ_IMAGE_NAME