virtio-accel: Add Dockerfile and workflow to build and push image

Signed-off-by: Kostis Papazafeiropoulos <[email protected]>

.github/workflows/vaccel-build-and-upload.yml

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+name: Build QEMU+vAccel docker image
+
+on:
+  push:
+    branches: [ '*\+vaccel' ]
+
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+env:
+  REGISTRY: harbor.nbfc.io/nubificus
+  IMAGE_NAME: qemu-vaccel
+  APP: qemu-vaccel
+
+jobs:
+  build:
+    name: Build Docker Image
+    runs-on: [self-hosted, gcc, lite, "${{ matrix.arch }}"]
+    strategy:
+      matrix:
+        arch: [x86_64, aarch64]
+    outputs:
+      digest-x86_64: ${{ steps.set-outputs.outputs.digest-x86_64 }}
+      digest-aarch64: ${{ steps.set-outputs.outputs.digest-aarch64 }}
+    steps:
+    - name: Cleanup previous jobs
+      run: |
+        echo "Cleaning up previous runs"
+        sudo rm -rf ${{ github.workspace }}/*
+        sudo rm -rf ${{ github.workspace }}/.??*
+
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Log into registry ${{ env.REGISTRY }}
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ secrets.HARBOR_USER }}
+        password: ${{ secrets.HARBOR_PASSWD }}
+
+    - name: Extract Docker metadata
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+        tags: |
+          type=raw,value=${{ matrix.arch }}
+          type=sha,prefix=${{ matrix.arch }}-
+          type=sha,format=long,prefix=${{ matrix.arch }}-
+          type=ref,event=branch,prefix=${{ matrix.arch }}-
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Build and push Docker image
+      id: build-and-push
+      uses: docker/build-push-action@v6
+      with:
+        context: ./subprojects/vaccel/docker
+        no-cache: true
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        build-args: |
+          ARCHTAG=${{ matrix.arch }}
+          BRANCH=${{ github.event.ref_name || github.ref_name }}
+
+    - name: Set per-arch outputs
+      id: set-outputs
+      run: |
+        # Workaround for https://github.com/actions/runner/issues/2499
+        echo "digest-${{ matrix.arch }}=${{ steps.build-and-push.outputs.digest }}" \
+          >> "$GITHUB_OUTPUT"
+
+  sign:
+    name: Sign Docker Image
+    runs-on: [self-hosted]
+    needs: [build]
+    strategy:
+      matrix:
+        arch: [x86_64, aarch64]
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+    - name: Install Cosign
+      uses: sigstore/[email protected]
+
+    - name: Check install
+      run: cosign version
+
+    - name: Log into registry ${{ env.REGISTRY }}
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ secrets.HARBOR_USER }}
+        password: ${{ secrets.HARBOR_PASSWD }}
+
+    - name: Sign published Docker image
+      env:
+        DIGEST: ${{ needs.build.outputs[format('digest-{0}', matrix.arch)] }}
+      run: |
+        cosign sign --yes ${{ env.REGISTRY }}/${{ env.APP }}@${{ env.DIGEST }} \
+        -a "repo=${{ github.repository }}" \
+        -a "workflow=${{ github.workflow }}" \
+        -a "ref=${{ github.sha }}" \
+        -a "author=Nubificus LTD"
+
+    - name: Cleanup previous runs
+      if: ${{ always() }}
+      run: |
+        sudo rm -rf ${{ github.workspace }}/*
+        sudo rm -rf ${{ github.workspace }}/.??*

subprojects/vaccel/.gitignore

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+!*.patch

subprojects/vaccel/docker/Dockerfile

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+FROM ubuntu:24.04
+
+WORKDIR /
+
+# Install common build utilities
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -yy eatmydata && \
+    DEBIAN_FRONTEND=noninteractive eatmydata \
+    apt-get install -y --no-install-recommends \
+        gcc \
+        g++ \
+        build-essential \
+        libglib2.0-dev \
+        libfdt-dev \
+        libpixman-1-dev \
+        libslirp-dev \
+        zlib1g-dev \
+        libcap-ng-dev \
+        libattr1-dev \
+        ninja-build \
+        git \
+        python3-pip \
+        libclang-dev \
+        pkg-config \
+        iproute2 \
+        openssh-client \
+        iputils-ping \
+        socat \
+        vim \
+        less \
+        ca-certificates \
+    && rm -rf /var/lib/apt/lists/* \
+    && pip install --break-system-packages meson
+
+# Build & install vAccel
+RUN git clone https://github.com/nubificus/vaccel && \
+    cd vaccel && \
+    meson setup -Dplugins=enabled -Dexamples=enabled build && \
+    meson compile -C build && \
+    meson install -C build && \
+    ldconfig && \
+    cd .. && rm -rf vaccel
+
+ARG BRANCH=master+vaccel
+ARG ARCHTAG=x86_64
+ARG DOCKER_DIR=.
+COPY ${DOCKER_DIR}/vq-size.patch /vq-size.patch
+# Build & install QEMU w/ vAccel backend
+RUN git clone -b ${BRANCH} --depth 1 \
+    https://github.com/cloudkernels/qemu-vaccel && \
+    cd qemu-vaccel && \
+    mv /vq-size.patch . && \
+    git apply vq-size.patch && \
+    mkdir build && cd build && \
+    ../configure --target-list=${ARCHTAG}-softmmu --enable-virtfs && \
+    make -j$(nproc) && make install && \
+    cd ../.. && rm -rf qemu-vaccel
+
+COPY ${DOCKER_DIR}/qemu-ifup /usr/local/etc/qemu-ifup
+COPY ${DOCKER_DIR}/qemu-script.sh /run.sh
+
+VOLUME /data
+WORKDIR /data
+ENTRYPOINT ["/run.sh"]

subprojects/vaccel/docker/qemu-ifup

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+#! /bin/sh
+# Script to bring a network (tap) device for qemu up.
+# The idea is to add the tap device to the same bridge
+# as we have default routing to.
+
+# in order to be able to find brctl
+PATH=$PATH:/sbin:/usr/sbin
+ip=$(which ip)
+
+if [ -n "$ip" ]; then
+   ip link set "$1" up
+else
+   brctl=$(which brctl)
+   if [ ! "$ip" -o ! "$brctl" ]; then
+     echo "W: $0: not doing any bridge processing: neither ip nor brctl utility not found" >&2
+     exit 0
+   fi
+   ifconfig "$1" 0.0.0.0 up
+fi
+
+switch=virbr0
+
+# only add the interface to default-route bridge if we
+# have such interface (with default route) and if that
+# interface is actually a bridge.
+# It is possible to have several default routes too
+for br in $switch; do
+    if [ -d /sys/class/net/$br/bridge/. ]; then
+        if [ -n "$ip" ]; then
+          ip link set "$1" master "$br"
+        else
+          brctl addif $br "$1"
+        fi
+        exit	# exit with status of the previous command
+    fi
+done
+
+echo "W: $0: no bridge for guest interface found" >&2