npm_build_deploy_default.yaml

on:
  workflow_call:
    inputs:
      app_name:
        required: true
        type: string
      taskdef_file:
        required: true
        type: string
      account_number:
        required: true
        type: string
      docker_file:
        required: true
        type: string
      cluster_name:
        required: true
        type: string
      aws_region:
        required: false
        default: "eu-west-1"
        type: string      
      environment:
        required: false
        default: "staging"
        type: string
      env_file_secret_var:
        required: false
        default: ""
        type: string
        description: "Variable name containing b64 encoded data for .env file"      
    secrets:
      build_params_gh_secret_keys:
        required: false
        description: "Pass github secrets in json format for supporting docker build"

jobs:
  deploy_workflow:
    name: Deploy ${{ inputs.app_name }}
    permissions:
      id-token: write
      contents: write
    environment: ${{ inputs.environment }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-region: ${{ inputs.aws_region }}
          role-to-assume: arn:aws:iam::${{ inputs.account_number }}:role/${{ inputs.app_name }}-GithubActionsRole
          role-session-name: GithubActionsSession

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Setup node
        uses: actions/setup-node@v2
        with:
          node-version: 20.9.0
        
      - name: Set up secrets
        run: |
          if [ -n "${{ secrets.build_params_gh_secret_keys }}" ]; then
            echo "${{ secrets.build_params_gh_secret_keys }}" > secrets.json
          fi      

      - name: Parse secrets and set environment variables
        run: |
          if [ -f secrets.json ]; then
            echo "Setting environment variables from JSON..."
            jq -r 'to_entries | .[] | "\(.key)=\(.value)"' secrets.json >> $GITHUB_ENV
          fi

      - name: Set up secrets from base64 encoded secret to .env file in code directory
        run: |
          if [[ -n "${{ inputs.env_file_secret_var }}" ]]; then
            echo "Fetching and decoding .env file data from secret.${{ inputs.env_file_secret_var }}"
            echo "${{ secrets[inputs.env_file_secret_var] }}" | base64 -d > code/.env
          fi

      - name: INSTALL
        run: npm install

      - name: Build
        run: npm run build

      - name: Build, tag, and push image to Amazon ECR
        id: build-image
        env:
          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
          IMAGE_TAG: ${{ github.sha }}
          ECR_REPOSITORY: ${{ inputs.app_name }}-ecr
        run: |
          docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
          docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
          echo "image=$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG" >> $GITHUB_OUTPUT

      - name: Fill in the new image ID in the Amazon ECS task definition
        id: task-def
        uses: aws-actions/amazon-ecs-render-task-definition@v1
        with:
          task-definition: ${{ inputs.taskdef_file }}
          container-name: ${{ inputs.app_name }}
          image: ${{ steps.build-image.outputs.image }}

      - name: Deploy Amazon ECS task definition
        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
        with:
          task-definition: ${{ steps.task-def.outputs.task-definition }}
          service: ${{ inputs.app_name }}-ecs-service
          cluster: ${{ inputs.cluster_name }}
          wait-for-service-stability: true