Try new multiarch

Author: wader

.github/workflows/build-multiarch2.yml

@@ -0,0 +1,86 @@
+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
+
+  tag:
+    name: Extract tag name
+    runs-on: ubuntu-latest
+    outputs:
+      TAG: ${{ steps.tag.outputs.result }}
+    steps:
+      - name: Extract the tag name
+        id: tag
+        uses: actions/github-script@0.2.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            return context.payload.ref === "refs/heads/master"
+              ? 'latest'
+              : context.payload.ref.replace(/^refs\/(tags|heads)\//, '');
+
+  merge:
+    runs-on: ubuntu-latest
+    needs:
+      - build
+      - tag
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp
+          pattern: image-*
+          merge-multiple: true
+      - name: Load Docker images
+        run: |
+          docker image load --input /tmp/image-arm64.tar
+          docker image load --input /tmp/image-amd64.tar
+      - 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
+        run: |
+          docker manifest create \
+            ${{ env.REGISTRY_IMAGE }}${{ needs.tag.outputs.TAG }} \
+            --amend image:arm64 \
+            --amend image:amd64
+          docker manifest inspect ${{ env.REGISTRY_IMAGE }}${{ needs.tag.outputs.TAG }}
+          docker manifest push ${{ env.REGISTRY_IMAGE }}${{ needs.tag.outputs.TAG }}
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect {{ $env.REGISTRY_IMAGE }}${{ needs.tag.outputs.TAG }}