Use latest docker alpine image

.github/workflows/build_docker.yml

@@ -8,10 +8,28 @@ on:
       - '[0-9]+\.[0-9]+\.[0-9]+'
       - '[0-9]+\.[0-9]+\.[0-9]+-RC[0-9]+'
 
+env:
+  DOCKERHUB_IMAGE: ${{ github.repository }}
+  IMAGE_TAG: |
+    ${{ github.ref_type == 'tag' && (contains(github.ref_name, '-RC') &&
+      join('candidate-', github.ref_name) || join('release-', github.ref_name)) || 'latest' }}
+
 jobs:
-  docker:
+  build:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm/v7
+          - linux/arm64
     steps:
+      -
+        name: Prepare
+        run: |
+          platform=${{ matrix.platform }}
+          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
       -
         name: Checkout
         uses: actions/checkout@v4
@@ -20,11 +38,10 @@ jobs:
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: wmbusmeters/wmbusmeters
+          tags: |
-          tags: type=ref,event=tag
+            ${{ env.IMAGE_TAG }}
-      -
+          images: |
-        name: Set up QEMU
+            ${{ env.DOCKERHUB_IMAGE }}
-        uses: docker/setup-qemu-action@v3
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -35,29 +52,67 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PAT }}
       -
-        name: Build and push not tagged release
+        name: Build and push
-        if: ${{ !steps.meta.outputs.tags }}
         uses: docker/build-push-action@v5
+        id: docker_build
         with:
           context: docker/
-          platforms: linux/amd64,linux/arm64,linux/armhf
+          platforms: ${{ matrix.platform }}
-          push: true
+          provenance: false
-          tags: wmbusmeters/wmbusmeters:latest
+          outputs: |
+            type=image,name=${{ env.DOCKERHUB_IMAGE }},push-by-digest=true,name-canonical=true,push=true
       -
-        name: Build and push candidate
+        name: Export digest
-        if: ${{ steps.meta.outputs.tags && contains(steps.meta.outputs.tags, '-RC') }}
+        run: |
-        uses: docker/build-push-action@v5
+          mkdir -p /tmp/digests
-        with:
+          digest="${{ steps.docker_build.outputs.digest }}"
-          context: docker/
+          touch "/tmp/digests/${digest#sha256:}"
-          platforms: linux/amd64,linux/arm64,linux/armhf
-          push: true
-          tags: wmbusmeters/wmbusmeters:candidate-${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.version'] }}
       -
-        name: Build and push tagged release
+        name: Upload digest
-        if: ${{ steps.meta.outputs.tags && !contains(steps.meta.outputs.tags, '-RC') }}
+        uses: actions/upload-artifact@v4
-        uses: docker/build-push-action@v5
         with:
-          context: docker/
+          name: digests-${{ env.PLATFORM_PAIR }}
-          platforms: linux/amd64,linux/arm64,linux/armhf
+          path: /tmp/digests/*
-          push: true
+          if-no-files-found: error
-          tags: wmbusmeters/wmbusmeters:release-${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.version'] }}
+          retention-days: 1
+
+  merge:
+    runs-on: ubuntu-latest
+    needs:
+      - build
+    steps:
+      -
+        name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests
+          pattern: digests-*
+          merge-multiple: true
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          tags: |
+            ${{ env.IMAGE_TAG }}
+          images: |
+            ${{ env.DOCKERHUB_IMAGE }}
+      -
+        name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PAT }}
+      -
+        name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.DOCKERHUB_IMAGE }}@sha256:%s ' *)
+      -
+        name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.DOCKERHUB_IMAGE }}:${{ steps.meta.outputs.version }}

docker/Dockerfile

@@ -1,5 +1,5 @@
-FROM asymworks/multiarch-alpine:${TARGETARCH}${TARGETVARIANT}-latest-stable AS build
+FROM alpine AS build
-RUN apk add --no-cache alpine-sdk gcc linux-headers librtlsdr-dev libxml2-dev cmake libusb-dev bash
+RUN apk add --no-cache alpine-sdk gcc linux-headers librtlsdr-dev libxml2-dev cmake libusb-dev bash samurai
 RUN git clone https://github.com/wmbusmeters/wmbusmeters.git && \
     git clone https://github.com/weetmuts/rtl-wmbus.git && \
     git clone https://github.com/merbanan/rtl_433.git
@@ -8,10 +8,11 @@ RUN make
 WORKDIR /rtl-wmbus
 RUN make release && chmod 755 build/rtl_wmbus
 WORKDIR /rtl_433
-RUN mkdir build && cd build && cmake ../ && make
+RUN cmake -B build -G Ninja \
+        -DCMAKE_BUILD_TYPE=MinSizeRel && \
+    cmake --build build
 
-FROM asymworks/multiarch-alpine:${TARGETARCH}${TARGETVARIANT}-latest-stable as scratch
+FROM alpine as scratch
-ENV QEMU_EXECVE=1
 RUN apk add --no-cache mosquitto-clients libstdc++ curl libusb rtl-sdr libxml2 netcat-openbsd
 WORKDIR /wmbusmeters
 COPY --from=build /wmbusmeters/build/wmbusmeters /wmbusmeters/wmbusmeters