build_diff_gen_image.yaml

name: Build and push diff generator image
on:
  workflow_dispatch: {}
  push:
    branches:
      - main
    paths:
      - "diff-generator/*"
jobs:
  build:
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v3
      - uses: aws-actions/configure-aws-credentials@v1-node16
        with:
          aws-access-key-id: ${{ secrets.AWS_GOVUK_ECR_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_GOVUK_ECR_SECRET_ACCESS_KEY }}
          aws-region: eu-west-1
      - uses: aws-actions/amazon-ecr-login@v1
        id: ecr
      - name: Build and push image
        env:
          DOCKER_BUILDKIT: "1"
          ECR_REGISTRY: ${{ steps.ecr.outputs.registry }}
        run: |
          IMAGE_URI="${ECR_REGISTRY}/govuk-fastly-diff-generator:latest"
          cd diff-generator
          docker build . -t "${IMAGE_URI}"
          docker push "${IMAGE_URI}"