build-push.yml

name: Build and Push to ECR

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

env:
  AWS_REGION: us-west-2
  ECR_REPOSITORY: mapserver-docker-cloudnative

permissions:
  id-token: write
  contents: read

jobs:
  build-push:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Configure AWS credentials via OIDC
        uses: aws-actions/configure-aws-credentials@v4
        with:
          role-to-assume: arn:aws:iam::${{ vars.AWS_ACCOUNT_ID }}:role/github-actions-mapserver
          aws-region: ${{ env.AWS_REGION }}

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/arm64
          push: ${{ github.event_name == 'push' }}
          tags: |
            ${{ steps.login-ecr.outputs.registry }}/${{ env.ECR_REPOSITORY }}:latest
            ${{ steps.login-ecr.outputs.registry }}/${{ env.ECR_REPOSITORY }}:${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max