main.yaml

name: deploy to lambda

on:
  push:
    branches:
      - master

jobs:
  deploy_lambda:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-region: ${{ secrets.AWS_REGION }}
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

      - uses: actions/setup-node@v2
        with:
          node-version: '16'

      - name: Upgrade npm
        run: npm install -g npm@8.1.2

      - name: Installing project dependencies
        run: npm install

      - name: Create node_modules zip for layer
        run: |
          mkdir -p layer/nodejs
          cp -r node_modules package.json package-lock.json layer/nodejs/
          cd layer
          zip -r layer.zip nodejs
          aws s3 cp layer.zip s3://enigma.webledger.in/layer.zip

      - name: deploy
        run: |
          zip -r deploy.zip ./src
          aws lambda update-function-code --function-name=enigma_lambda --zip-file=fileb://deploy.zip    

      - name: Create/Update Lambda Layer
        id: create_layer
        run: |
          LAYER_VERSION=$(aws lambda publish-layer-version \
            --layer-name enigma_layer \
            --content S3Bucket=enigma.webledger.in,S3Key=layer.zip \
            --compatible-runtimes nodejs18.x \
            --query Version \
            --output text)
          echo "::set-output name=layer_version::$LAYER_VERSION"

      - name: Update Lambda function with new layer
        run: |
          aws lambda update-function-configuration \
            --function-name enigma_lambda \
            --layers arn:aws:lambda:${{ secrets.AWS_REGION }}:$(aws sts get-caller-identity --query Account --output text):layer:enigma_layer:${{ steps.create_layer.outputs.layer_version }}