diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml new file mode 100644 index 0000000..1728705 --- /dev/null +++ b/.github/workflows/docker-publish.yml @@ -0,0 +1,111 @@ +name: Docker Build and Publish + +on: + push: + branches: + - main + - develop + tags: + - 'v*' + pull_request: + branches: + - main + - develop + workflow_dispatch: + +env: + REGISTRY: ghcr.io + IMAGE_NAME: ${{ github.repository }} + +jobs: + build-and-test: + runs-on: ubuntu-latest + permissions: + contents: read + packages: write + + steps: + - name: Checkout repository + uses: actions/checkout@v4 + + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v3 + + - name: Log in to GitHub Container Registry + if: github.event_name != 'pull_request' + uses: docker/login-action@v3 + with: + registry: ${{ env.REGISTRY }} + username: ${{ github.actor }} + password: ${{ secrets.GITHUB_TOKEN }} + + - name: Extract metadata (tags, labels) for Docker + id: meta + uses: docker/metadata-action@v5 + with: + images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} + tags: | + type=ref,event=branch + type=ref,event=pr + type=semver,pattern={{version}} + type=semver,pattern={{major}}.{{minor}} + type=semver,pattern={{major}} + type=sha,prefix={{branch}}- + type=raw,value=latest,enable={{is_default_branch}} + + - name: Build Docker image + uses: docker/build-push-action@v5 + with: + context: . + file: ./Dockerfile + push: false + load: true + tags: ${{ steps.meta.outputs.tags }} + labels: ${{ steps.meta.outputs.labels }} + cache-from: type=gha + cache-to: type=gha,mode=max + + - name: Test Docker image + run: | + echo "Testing SparkOS Docker image..." + # Get the first tag from the metadata output + IMAGE_TAG=$(echo "${{ steps.meta.outputs.tags }}" | head -n1) + echo "Using image: $IMAGE_TAG" + + # Run the container and check output + docker run --rm "$IMAGE_TAG" + + # Verify init binary exists and is executable + docker run --rm "$IMAGE_TAG" sh -c "test -x /sparkos/rootfs/sbin/init && echo 'Init binary is executable'" + + echo "Docker image test completed successfully!" + + - name: Push Docker image to GHCR + if: github.event_name != 'pull_request' + uses: docker/build-push-action@v5 + with: + context: . + file: ./Dockerfile + push: true + tags: ${{ steps.meta.outputs.tags }} + labels: ${{ steps.meta.outputs.labels }} + cache-from: type=gha + cache-to: type=gha,mode=max + + - name: Output image details + if: github.event_name != 'pull_request' + run: | + echo "### Docker Image Published! 🐳" >> $GITHUB_STEP_SUMMARY + echo "" >> $GITHUB_STEP_SUMMARY + echo "**Registry:** ${{ env.REGISTRY }}" >> $GITHUB_STEP_SUMMARY + echo "**Repository:** ${{ env.IMAGE_NAME }}" >> $GITHUB_STEP_SUMMARY + echo "" >> $GITHUB_STEP_SUMMARY + echo "**Tags:**" >> $GITHUB_STEP_SUMMARY + echo '```' >> $GITHUB_STEP_SUMMARY + echo "${{ steps.meta.outputs.tags }}" >> $GITHUB_STEP_SUMMARY + echo '```' >> $GITHUB_STEP_SUMMARY + echo "" >> $GITHUB_STEP_SUMMARY + echo "**Pull command:**" >> $GITHUB_STEP_SUMMARY + echo '```bash' >> $GITHUB_STEP_SUMMARY + echo "docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest" >> $GITHUB_STEP_SUMMARY + echo '```' >> $GITHUB_STEP_SUMMARY diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..05bbe84 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,96 @@ +# SparkOS Docker Image +# Multi-stage build for minimal final image size + +# Build stage - use gcc image which has all build tools pre-installed +FROM gcc:13-bookworm AS builder + +# Set working directory +WORKDIR /build + +# Copy source files +COPY src/ ./src/ +COPY Makefile . +COPY scripts/ ./scripts/ + +# Build the init system +RUN make init + +# Runtime stage - use Alpine for minimal size +FROM alpine:3.19 + +# Note: Alpine includes busybox by default + +# Create minimal rootfs structure +RUN mkdir -p /sparkos/rootfs/bin \ + /sparkos/rootfs/sbin \ + /sparkos/rootfs/etc \ + /sparkos/rootfs/proc \ + /sparkos/rootfs/sys \ + /sparkos/rootfs/dev \ + /sparkos/rootfs/tmp \ + /sparkos/rootfs/usr/bin \ + /sparkos/rootfs/usr/sbin \ + /sparkos/rootfs/usr/lib \ + /sparkos/rootfs/var/log \ + /sparkos/rootfs/var/run \ + /sparkos/rootfs/root \ + /sparkos/rootfs/home/spark && \ + chmod 1777 /sparkos/rootfs/tmp && \ + chmod 700 /sparkos/rootfs/root && \ + chmod 755 /sparkos/rootfs/home/spark + +# Copy built init binary from builder +COPY --from=builder /build/init /sparkos/rootfs/sbin/init + +# Copy setup scripts +COPY scripts/setup_rootfs.sh /sparkos/scripts/ + +# Set up basic configuration files +RUN echo "sparkos" > /sparkos/rootfs/etc/hostname && \ + echo "127.0.0.1 localhost" > /sparkos/rootfs/etc/hosts && \ + echo "127.0.1.1 sparkos" >> /sparkos/rootfs/etc/hosts && \ + echo "root:x:0:0:root:/root:/bin/sh" > /sparkos/rootfs/etc/passwd && \ + echo "spark:x:1000:1000:SparkOS User:/home/spark:/bin/sh" >> /sparkos/rootfs/etc/passwd && \ + echo "root:x:0:" > /sparkos/rootfs/etc/group && \ + echo "spark:x:1000:" >> /sparkos/rootfs/etc/group + +# Create a test entrypoint +COPY <<'EOF' /sparkos/test.sh +#!/bin/sh +echo "SparkOS Docker Test Environment" +echo "================================" +echo "" +echo "SparkOS init binary: /sparkos/rootfs/sbin/init" +echo "" +echo "Verifying init binary..." +if [ -f /sparkos/rootfs/sbin/init ]; then + echo "✓ Init binary exists" + ls -lh /sparkos/rootfs/sbin/init + echo "" + echo "File type:" + file /sparkos/rootfs/sbin/init + echo "" + echo "Dependencies:" + ldd /sparkos/rootfs/sbin/init 2>&1 || echo " Static binary (no dependencies)" +else + echo "✗ Init binary not found!" + exit 1 +fi +echo "" +echo "Root filesystem structure:" +ls -la /sparkos/rootfs/ +echo "" +echo "SparkOS is ready for testing!" +echo "" +echo "To test the init system:" +echo " docker run --rm /sparkos/rootfs/sbin/init --help" +echo "" +exec /bin/sh +EOF + +RUN chmod +x /sparkos/test.sh + +WORKDIR /sparkos + +# Set entrypoint +ENTRYPOINT ["/sparkos/test.sh"]