build.yml

name: Build and deploy layer

on:
  push:
    tags:
      - release-*
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.AWS_REGION }}

      - name: Build image
        run: docker build -f ./dockerfiles/x86/Dockerfile -t tippecanoe-lambda-x86 .

      - name: Run image
        run: docker run --volume .:/tmp tippecanoe-lambda-x86

      - name: upload build artifact
        uses: actions/upload-artifact@v3
        with:
          name: tippecanoe-lambda-x86
          path: ./build.zip

  publish:
    needs: build
    strategy:
      matrix:
        region:
          [
            'us-east-1',
            'us-east-2',
            'us-west-1',
            'us-west-2',
            'ap-northeast-1',
            'ap-southeast-2',
            'ap-southeast-1',
            'eu-west-1',
          ]
    runs-on: ubuntu-latest

    steps:
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.AWS_REGION }}

      - name: Download build artifact
        uses: actions/download-artifact@v3
        with:
          name: tippecanoe-lambda-x86

      - name: Copy layer zip file to S3
        env:
          S3_BUCKET: ${{ secrets.S3_BUCKET }}
        run: |
          aws s3 cp build.zip s3://"$S3_BUCKET"-${{ matrix.region }}/tippecanoe-x86/build.zip

      - name: Update lambda layer
        env:
          S3_BUCKET: ${{ secrets.S3_BUCKET }}
        run: |
          aws lambda publish-layer-version \
          --layer-name tippecanoe-lambda \
          --region ${{ matrix.region }} \
          --compatible-architectures x86_64 \
          --description "Tippecanoe for AWS Lambda" \
          --content S3Bucket="$S3_BUCKET"-${{ matrix.region }},S3Key=tippecanoe-x86/build.zip