build.yaml

---

name: Build and push image
on:
  push:
    branches: ['main']

permissions:
  id-token: write
  contents: read 

jobs:
  build:
    name: Build and push
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Setup Poetry
        uses: snok/install-poetry@v1

      - name: Generate requirements.txt
        run: poetry export -f requirements.txt -o requirements.txt
      
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v2
        with:
          role-to-assume: ${{ vars.AWS_ROLE_ARN }}
          aws-region: eu-west-1

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

      - name: Build and push Docker image
        uses: docker/build-push-action@v4.0.0
        with:
          push: true
          tags: ${{ steps.login-ecr.outputs.registry }}/concrexit/facedetection-lambda:latest
          platforms: linux/amd64  # Lambda requires single-platform images,
          provenance: false       # see https://stackoverflow.com/q/65608802.
          cache-from: type=gha
          cache-to: type=gha,mode=max