Try new multiarch

.github/workflows/build-multiarch2.yml

@@ -0,0 +1,69 @@
+name: multiarch2
+
+on:
+  # push:
+  workflow_dispatch:
+
+env:
+  REGISTRY_IMAGE: mwader/static-ffmpeg:test
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        include:
+          - runs_on: ubicloud-standard-8-arm 
+            tag: arm64
+          - runs_on: ubuntu-latest
+            tag: amd64
+
+    runs-on: ${{ matrix.runs_on }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Docker build
+        run: docker build --tag image:${{ matrix.tag }} .
+      - name: Docker save
+        run: docker image save --output image-${{ matrix.tag }}.tar image:${{ matrix.tag }}
+      - name: Upload Docker image-${{ matrix.tag }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: image-${{ matrix.tag }}
+          path: image-${{ matrix.tag }}.tar
+          retention-days: 1
+
+  merge:
+    runs-on: ubuntu-latest
+    needs:
+      - build
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests
+          pattern: image-*
+          merge-multiple: true
+      - name: Load Docker images
+        run:
+          docker image load --input image-arm64.tar
+          docker image load --input image-amd64.tar
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY_IMAGE }}
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create \
+            --tag ${{ env.REGISTRY_IMAGE }} \
+            image:arm64 image:amd64
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect {{ $env.REGISTRY_IMAGE }}