feat: build iota-node docker on platform-specific runners

.github/workflows/release_docker.yml

@@ -26,35 +26,137 @@ on:
         required: false
         default: false
 
+env:
+  IMAGE_IOTA_NODE: iotaledger/iota-node
+
 jobs:
   build-iota-node:
     if: github.event_name == 'workflow_dispatch' && github.event.inputs.iota_node == 'true' || github.event_name == 'release'
-    runs-on: self-hosted
     environment: release
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [
+          ubuntu-latest,
+          ubuntu-24.04-arm,
+        ]
+    runs-on: ${{ matrix.os }}
+
     steps:
+      - name: Prepare
+        run: |
+          if [ "${{ runner.os }}" != "Linux" ]; then
+            echo "Error: This workflow only supports Linux runners."
+            exit 1
+          fi
+
+          case "${{ runner.arch }}" in
+            X64)
+              PLATFORM_ARCH="amd64"
+              ;;
+            ARM64)
+              PLATFORM_ARCH="arm64"
+              ;;
+            *)
+              echo "Error: Unsupported architecture: ${{ runner.arch }}"
+              exit 1
+              ;;
+          esac
+
+          echo "PLATFORM_PAIR=linux/${PLATFORM_ARCH}" >> $GITHUB_ENV
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
+        with:
+          images: ${{ env.IMAGE_IOTA_NODE }}
+
+      - name: Login to Docker Registry
+        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
+        with:
+          username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
+          password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+          registry: ${{ secrets.DOCKER_REGISTRY_URL }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf # v3.2.0
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349 # v3.7.1
+
       - name: Checkout code
         uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
 
       - name: Read Rust toolchain version from TOML
-        id: read_toolchain
+        id: read-toolchain
         run: |
           TOOLCHAIN_VERSION=$(grep -oE 'channel = "[^"]+' ./rust-toolchain.toml | sed 's/channel = "//')
           echo "TOOLCHAIN_VERSION=${TOOLCHAIN_VERSION}" >> $GITHUB_ENV
 
       - name: Log Rust toolchain version
         run: echo "Rust toolchain version is ${{ env.TOOLCHAIN_VERSION }}"
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf # v3.2.0
+      - name: Get git revision and build date
+        id: git-info
+        run: |
+          echo "GIT_REVISION=$(git describe --always --abbrev=12 --dirty --exclude '*')" >> $GITHUB_ENV
+          echo "BUILD_DATE=$(date -u +'%Y-%m-%d')" >> $GITHUB_ENV
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6.9.0
+        with:
+          context: .
+          file: docker/iota-node/Dockerfile
+          platforms: ${{ env.PLATFORM_PAIR }}
+          labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=image,"name=${{ env.IMAGE_IOTA_NODE }}",push-by-digest=true,name-canonical=true,push=true
+          build-args: |
+            GIT_REVISION=${{ env.GIT_REVISION }}
+            BUILD_DATE=${{ env.BUILD_DATE }}
+            RUST_IMAGE_VERSION=${{ env.TOOLCHAIN_VERSION }}-bookworm
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests-node
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests-node/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        with:
+          name: digests-node-${{ env.PLATFORM_PAIR }}
+          path: ${{ runner.temp }}/digests-node/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge-iota-node:
+    runs-on: ubuntu-latest
+    needs:
+      - build-iota-node
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
+        with:
+          path: ${{ runner.temp }}/digests-node
+          pattern: digests-node-*
+          merge-multiple: true
+
+      - name: Login to Docker Registry
+        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
+        with:
+          username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
+          password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+          registry: ${{ secrets.DOCKER_REGISTRY_URL }}
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349 # v3.7.1
 
-      - name: Docker meta for iota-node
-        id: meta-node
+      - name: Docker meta
+        id: meta
         uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
         with:
-          images: iotaledger/iota-node
+          images: ${{ env.IMAGE_IOTA_NODE }}
           # mapping semver tags to networks
           # v{MAJOR}.{MINOR}.{PATCH}-alpha -> alphanet
           # v{MAJOR}.{MINOR}.{PATCH}-beta -> devnet
@@ -69,32 +171,15 @@ jobs:
             type=raw,value=testnet,enable=${{ github.event_name == 'release' && contains(github.ref, '-rc') }}
             type=raw,value=mainnet,enable=${{ github.event_name == 'release' && !contains(github.ref, '-alpha') && !contains(github.ref, '-beta') && !contains(github.ref, '-rc') }}
 
-      - name: Login to Docker Registry
-        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
-        with:
-          username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
-          password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
-          registry: ${{ secrets.DOCKER_REGISTRY_URL }}
-
-      - name: Get git revision and build date
-        id: git-info
+      - name: Create manifest list and push
+        working-directory: ${{ runner.temp }}/digests-node
         run: |
-          echo "GIT_REVISION=$(git describe --always --abbrev=12 --dirty --exclude '*')" >> $GITHUB_ENV
-          echo "BUILD_DATE=$(date -u +'%Y-%m-%d')" >> $GITHUB_ENV
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.IMAGE_IOTA_NODE }}@sha256:%s ' *)
 
-      - name: Build and push Docker image for iota-node
-        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6.9.0
-        with:
-          context: .
-          file: docker/iota-node/Dockerfile
-          platforms: linux/amd64,linux/arm64
-          tags: ${{ steps.meta-node.outputs.tags }}
-          push: true
-          pull: true
-          build-args: |
-            GIT_REVISION=${{ env.GIT_REVISION }}
-            BUILD_DATE=${{ env.BUILD_DATE }}
-            RUST_IMAGE_VERSION=${{ env.TOOLCHAIN_VERSION }}-bookworm
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.IMAGE_IOTA_NODE }}:${{ steps.meta.outputs.version }}
 
   build-iota-indexer:
     if: github.event_name == 'workflow_dispatch' && github.event.inputs.iota_indexer == 'true' || github.event_name == 'release'