init code

.github/workflows/build-docker-container.yml

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+name: C/C++ CI
+
+on:
+  push:
+    tags: ["v*"] # Push events to matching v*, i.e. v1.0, v20.15.10
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Initialize variables
+      env:
+        GITHUB_REF: ${{ github.ref }}
+      run: |
+        cat <<EOF >> $GITHUB_ENV
+        PACKAGE_VERSION=$(echo $GITHUB_REF | tr -d 'refs/tags/' )
+        EOF
+        
+    - name: Log in to the Container registry
+      uses: docker/login-action@v1
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and push Docker images
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        push: true
+        tags: |
+          ghcr.io/montimage/linuxptp:${{ env.PACKAGE_VERSION }}
+          ghcr.io/montimage/linuxptp:latest
+        build-args: |
+          LINUXPTP_VERSION=${{ env.PACKAGE_VERSION }}

.gitignore

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+/.project

Dockerfile

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+ARG LINUXPTP_VERSION=v4.1
+FROM ubuntu:22.04 AS builder
+
+RUN apt update && apt install -y git make gcc musl-dev
+
+WORKDIR /linuxptp-agent
+RUN git clone https://git.code.sf.net/p/linuxptp/code linuxptp && \
+    cd linuxptp && \
+    git checkout ${LINUXPTP_VERSION} && \
+    make
+
+FROM ubuntu:22.04
+
+COPY --from=builder /linuxptp-agent/linuxptp/ptp4l /usr/local/bin/
+COPY --from=builder /linuxptp-agent/linuxptp/phc2sys /usr/local/bin/
+COPY --from=builder /linuxptp-agent/linuxptp/pmc /usr/local/bin/
+
+RUN apt update && apt install -y musl-dev bc && \
+    apt clean && \
+    rm -rf /var/lib/apt/lists/* && \
+    ldconfig