erofs-snapshotter/Dockerfile.integration at main · spin-stack/erofs-snapshotter · GitHub

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# Dockerfile for integration tests with containerd and erofs snapshotter
# Build: docker build -t erofs-snapshotter-integration -f Dockerfile.integration .
# Run:   docker run --privileged --rm erofs-snapshotter-integration
#
# This is a base image with runtime dependencies only.
# Go binaries (erofs-snapshotter, integration-commit) are built on the host
# and mounted at runtime for faster iteration.
#
# Multi-stage build:
# - Stage 1 (erofs-builder): Builds erofs-utils from source
# - Stage 2 (runtime): Minimal Ubuntu with only runtime dependencies

ARG NERDCTL_VERSION=2.3.1
ARG UBUNTU_VERSION=26.04

# =============================================================================
# Stage 1: Build erofs-utils
# =============================================================================
FROM ubuntu:${UBUNTU_VERSION} AS erofs-builder

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    autoconf \
    automake \
    libtool \
    pkg-config \
    uuid-dev \
    liblz4-dev \
    libzstd-dev \
    zlib1g-dev \
    liblzma-dev \
    curl \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Copy and run the erofs-utils build script
COPY scripts/build-erofs-utils.sh /tmp/build-erofs-utils.sh
RUN /tmp/build-erofs-utils.sh /usr/local

# =============================================================================
# Stage 2: Runtime image
# =============================================================================
FROM ubuntu:${UBUNTU_VERSION}

# OCI labels for GitHub Container Registry
LABEL org.opencontainers.image.source=https://github.com/spin-stack/erofs-snapshotter
LABEL org.opencontainers.image.description="Integration test environment for erofs snapshotter"
LABEL org.opencontainers.image.licenses=Apache-2.0

# Install runtime dependencies only
RUN apt-get update && apt-get install -y --no-install-recommends \
    e2fsprogs \
    kmod \
    ca-certificates \
    iptables \
    runc \
    fuse3 \
    procps \
    liblz4-1 \
    libzstd1 \
    zlib1g \
    liblzma5 \
    libuuid1 \
    xxd \
    isal \
    jq \
    && rm -rf /var/lib/apt/lists/*

# Copy erofs-utils binaries from builder
COPY --from=erofs-builder /usr/local/bin/mkfs.erofs /usr/local/bin/
COPY --from=erofs-builder /usr/local/bin/fsck.erofs /usr/local/bin/
COPY --from=erofs-builder /usr/local/bin/dump.erofs /usr/local/bin/

# Verify erofs-utils installation
RUN mkfs.erofs --version

# Note: Go binaries (spin-erofs-snapshotter, integration-commit) are built on
# the host and mounted at runtime. See run-integration-tests.sh for details.

# Install nerdctl (containerd + ctr + nerdctl bundle)
ARG NERDCTL_VERSION
RUN apt-get update && apt-get install -y --no-install-recommends curl \
    && curl -sSL "https://github.com/containerd/nerdctl/releases/download/v${NERDCTL_VERSION}/nerdctl-full-${NERDCTL_VERSION}-linux-amd64.tar.gz" | \
       tar -xz -C /usr/local \
    && apt-get purge -y curl \
    && apt-get autoremove -y \
    && rm -rf /var/lib/apt/lists/*

# Create loop devices (up to loop31 for integration tests)
RUN for i in $(seq 0 31); do \
        [ -e /dev/loop$i ] || mknod -m 0660 /dev/loop$i b 7 $i; \
    done

# Create required directories
RUN mkdir -p \
    /var/lib/containerd-test \
    /var/lib/spin-stack/erofs-snapshotter \
    /run/containerd \
    /run/spin-stack/erofs-snapshotter \
    /tmp/integration-logs

WORKDIR /workspace

# Note: Integration test script is mounted at runtime from scripts/ directory
# for faster iteration. The entrypoint script is a thin wrapper that calls it.

# Create entrypoint wrapper that runs the mounted script
RUN printf '#!/bin/bash\nexec /workspace/scripts/integration-test.sh "$@"\n' > /usr/local/bin/entrypoint.sh \
    && chmod +x /usr/local/bin/entrypoint.sh

# Default entrypoint runs integration tests via mounted script
ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]