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https://github.com/johndoe6345789/SparkOS.git
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Add Dockerfile and GitHub Actions workflow for GHCR publishing
Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>
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111
.github/workflows/docker-publish.yml
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111
.github/workflows/docker-publish.yml
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name: Docker Build and Publish
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on:
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push:
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branches:
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- main
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- develop
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tags:
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- 'v*'
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pull_request:
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branches:
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- main
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- develop
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workflow_dispatch:
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env:
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REGISTRY: ghcr.io
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IMAGE_NAME: ${{ github.repository }}
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jobs:
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build-and-test:
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runs-on: ubuntu-latest
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permissions:
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contents: read
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packages: write
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steps:
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- name: Checkout repository
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uses: actions/checkout@v4
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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- name: Log in to GitHub Container Registry
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if: github.event_name != 'pull_request'
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uses: docker/login-action@v3
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with:
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registry: ${{ env.REGISTRY }}
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Extract metadata (tags, labels) for Docker
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
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tags: |
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type=ref,event=branch
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type=ref,event=pr
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type=semver,pattern={{version}}
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type=semver,pattern={{major}}.{{minor}}
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type=semver,pattern={{major}}
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type=sha,prefix={{branch}}-
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type=raw,value=latest,enable={{is_default_branch}}
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- name: Build Docker image
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uses: docker/build-push-action@v5
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with:
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context: .
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file: ./Dockerfile
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push: false
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load: true
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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cache-from: type=gha
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cache-to: type=gha,mode=max
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- name: Test Docker image
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run: |
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echo "Testing SparkOS Docker image..."
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# Get the first tag from the metadata output
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IMAGE_TAG=$(echo "${{ steps.meta.outputs.tags }}" | head -n1)
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echo "Using image: $IMAGE_TAG"
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# Run the container and check output
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docker run --rm "$IMAGE_TAG"
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# Verify init binary exists and is executable
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docker run --rm "$IMAGE_TAG" sh -c "test -x /sparkos/rootfs/sbin/init && echo 'Init binary is executable'"
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echo "Docker image test completed successfully!"
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- name: Push Docker image to GHCR
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if: github.event_name != 'pull_request'
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uses: docker/build-push-action@v5
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with:
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context: .
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file: ./Dockerfile
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push: true
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}
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cache-from: type=gha
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cache-to: type=gha,mode=max
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- name: Output image details
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if: github.event_name != 'pull_request'
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run: |
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echo "### Docker Image Published! 🐳" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**Registry:** ${{ env.REGISTRY }}" >> $GITHUB_STEP_SUMMARY
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echo "**Repository:** ${{ env.IMAGE_NAME }}" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**Tags:**" >> $GITHUB_STEP_SUMMARY
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echo '```' >> $GITHUB_STEP_SUMMARY
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echo "${{ steps.meta.outputs.tags }}" >> $GITHUB_STEP_SUMMARY
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echo '```' >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**Pull command:**" >> $GITHUB_STEP_SUMMARY
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echo '```bash' >> $GITHUB_STEP_SUMMARY
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echo "docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest" >> $GITHUB_STEP_SUMMARY
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echo '```' >> $GITHUB_STEP_SUMMARY
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96
Dockerfile
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96
Dockerfile
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# SparkOS Docker Image
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# Multi-stage build for minimal final image size
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# Build stage - use gcc image which has all build tools pre-installed
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FROM gcc:13-bookworm AS builder
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# Set working directory
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WORKDIR /build
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# Copy source files
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COPY src/ ./src/
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COPY Makefile .
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COPY scripts/ ./scripts/
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# Build the init system
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RUN make init
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# Runtime stage - use Alpine for minimal size
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FROM alpine:3.19
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# Note: Alpine includes busybox by default
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# Create minimal rootfs structure
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RUN mkdir -p /sparkos/rootfs/bin \
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/sparkos/rootfs/sbin \
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/sparkos/rootfs/etc \
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/sparkos/rootfs/proc \
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/sparkos/rootfs/sys \
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/sparkos/rootfs/dev \
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/sparkos/rootfs/tmp \
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/sparkos/rootfs/usr/bin \
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/sparkos/rootfs/usr/sbin \
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/sparkos/rootfs/usr/lib \
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/sparkos/rootfs/var/log \
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/sparkos/rootfs/var/run \
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/sparkos/rootfs/root \
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/sparkos/rootfs/home/spark && \
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chmod 1777 /sparkos/rootfs/tmp && \
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chmod 700 /sparkos/rootfs/root && \
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chmod 755 /sparkos/rootfs/home/spark
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# Copy built init binary from builder
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COPY --from=builder /build/init /sparkos/rootfs/sbin/init
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# Copy setup scripts
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COPY scripts/setup_rootfs.sh /sparkos/scripts/
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# Set up basic configuration files
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RUN echo "sparkos" > /sparkos/rootfs/etc/hostname && \
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echo "127.0.0.1 localhost" > /sparkos/rootfs/etc/hosts && \
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echo "127.0.1.1 sparkos" >> /sparkos/rootfs/etc/hosts && \
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echo "root:x:0:0:root:/root:/bin/sh" > /sparkos/rootfs/etc/passwd && \
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echo "spark:x:1000:1000:SparkOS User:/home/spark:/bin/sh" >> /sparkos/rootfs/etc/passwd && \
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echo "root:x:0:" > /sparkos/rootfs/etc/group && \
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echo "spark:x:1000:" >> /sparkos/rootfs/etc/group
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# Create a test entrypoint
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COPY <<'EOF' /sparkos/test.sh
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#!/bin/sh
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echo "SparkOS Docker Test Environment"
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echo "================================"
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echo ""
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echo "SparkOS init binary: /sparkos/rootfs/sbin/init"
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echo ""
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echo "Verifying init binary..."
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if [ -f /sparkos/rootfs/sbin/init ]; then
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echo "✓ Init binary exists"
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ls -lh /sparkos/rootfs/sbin/init
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echo ""
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echo "File type:"
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file /sparkos/rootfs/sbin/init
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echo ""
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echo "Dependencies:"
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ldd /sparkos/rootfs/sbin/init 2>&1 || echo " Static binary (no dependencies)"
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else
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echo "✗ Init binary not found!"
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exit 1
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fi
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echo ""
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echo "Root filesystem structure:"
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ls -la /sparkos/rootfs/
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echo ""
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echo "SparkOS is ready for testing!"
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echo ""
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echo "To test the init system:"
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echo " docker run --rm <image> /sparkos/rootfs/sbin/init --help"
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echo ""
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exec /bin/sh
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EOF
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RUN chmod +x /sparkos/test.sh
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WORKDIR /sparkos
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# Set entrypoint
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ENTRYPOINT ["/sparkos/test.sh"]
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