Split up runners

.github/workflows/build.yml

@@ -1,73 +1,18 @@
 name: Create and publish AEM images
 
-on:
-  push:
-    branches: ["main"]
-  workflow_dispatch:
+on: [push]
 
 env:
-  REGISTRY: ghcr.io
-  IMAGE_NAME: ${{ github.repository }}
-  AEM_SDK_VERSION: 2024.10.18459.20241031T210302Z-241000
+  registry: ghcr.io
+  image_name: ${{ github.repository }}
+  aem_sdk_version: 2024.10.18459.20241031T210302Z-241000
 
 jobs:
-  build-and-push-image:
-    name: Build and push AEM image
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-      attestations: write
-      id-token: write
+  build-images:
     strategy:
       matrix:
-        runmode: ["author", "publish"]
+        os: [ ubuntu-latest, macos-latest ]
+    runs-on: ${{ matrix.os }}
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - name: Cache SDK
-        uses: actions/cache@v4
-        with:
-          path: aem-sdk-artifacts
-          key: aem-sdk-${{ env.AEM_SDK_VERSION }}.zip
-      - name: Checkout AEM SDK artifacts repository
-        uses: actions/checkout@v4
-        with:
-          repository: orbinson/aem-sdk-artifacts
-          lfs: true
-          token: ${{ secrets.PRIVATE_TOKEN }}
-          path: aem-sdk-artifacts
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      - name: Log in to the Container registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v3
-        with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-      - name: Build and push docker image
-        id: push
-        uses: docker/build-push-action@v3
-        with:
-          context: .
-          push: true
-          tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}:${{ matrix.runmode }}-${{ env.AEM_SDK_VERSION }}
-          platforms: linux/amd64,linux/arm64
-          labels: ${{ steps.meta.outputs.labels }}
-          build-args: |
-            RUNMODE=${{ matrix.runmode }}
-            PORT=${{ matrix.runmode == 'author' && '4502' || '4503' }}
-      - name: Generate artifact attestation
-        uses: actions/attest-build-provenance@v1
-        with:
-          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
-          subject-digest: ${{ steps.push.outputs.digest }}
-          push-to-registry: true
-
+      - run: |
+          echo ${{ env.registry }}/${{ env.image_name }}:${{ env.aem_sdk_version }}-$(uname -m)