multi-arch docker builder

.github/workflows/nimbus_docker_build.yml

@@ -0,0 +1,136 @@
+# Nimbus
+# Copyright (c) 2025 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
+#    http://www.apache.org/licenses/LICENSE-2.0)
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or
+#    http://opensource.org/licenses/MIT)
+# at your option. This file may not be copied, modified, or distributed except
+# according to those terms.
+
+name: Build Docker Images
+
+on:
+  push:
+    branches:
+      - 'master'
+    paths-ignore:
+      - 'fluffy/**'
+      - '**/*.md'
+      - '.github/workflows/fluffy*.yml'
+      - 'nimbus_verified_proxy/**'
+      - '.github/workflows/nimbus_verified_proxy.yml'
+
+  workflow_dispatch:
+
+env:
+  REGISTRY_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/nimbus-eth1
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+          - os: linux
+            cpu: amd64
+          - os: linux
+            cpu: arm64
+        include:
+          - target:
+              cpu: amd64
+            builder: ubuntu-latest
+          - target:
+              cpu: arm64
+            builder: ubuntu-24.04-arm
+    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }}'
+    runs-on: ${{ matrix.builder }}
+    steps:
+      - name: Prepare
+        run: |
+          platform=${{ matrix.target.os }}/${{ matrix.target.cpu }}
+          # Replace '/' with '-' to create a unique identifier for this platform
+          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY_IMAGE }}
+
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          labels: ${{ steps.meta.outputs.labels }}
+          tags: ${{ env.REGISTRY_IMAGE }}
+          outputs: type=image,push-by-digest=true,name-canonical=true,push=true
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ env.PLATFORM_PAIR }}
+          path: ${{ runner.temp }}/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    runs-on: ubuntu-latest
+    needs:
+      - build
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: ${{ runner.temp }}/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - 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 }}
+          tags: |
+            type=ref,event=branch
+            type=sha,prefix={{branch}}-
+
+      - name: Create manifest list and push
+        working-directory: ${{ runner.temp }}/digests
+        run: |
+          jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON"
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}

Dockerfile

@@ -1,5 +1,5 @@
 # Nimbus
-# Copyright (c) 2024 Status Research & Development GmbH
+# Copyright (c) 2024-2025 Status Research & Development GmbH
 # Licensed under either of
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
 #    http://www.apache.org/licenses/LICENSE-2.0)
@@ -15,13 +15,13 @@ SHELL ["/bin/bash", "-c"]
 RUN apt-get clean && apt update \
  && apt -y install curl build-essential git-lfs librocksdb-dev
 
-RUN ldd --version ldd
+RUN ldd --version
 
 ADD . /root/nimbus-eth1
 
 RUN cd /root/nimbus-eth1 \
  && make -j$(nproc) update-from-ci \
- && make -j$(nproc) V=1 LOG_LEVEL=TRACE nimbus
+ && make -j$(nproc) V=1 nimbus
 
 # --------------------------------- #
 # Starting new image to reduce size #
@@ -33,7 +33,7 @@ RUN apt-get clean && apt update \
  && apt -y install build-essential librocksdb-dev
 RUN apt update && apt -y upgrade
 
-RUN ldd --version ldd
+RUN ldd --version
 
 RUN rm -f /home/user/nimbus-eth1/build/nimbus_execution_client