systemg 0.32.0

A simple process manager.
Documentation 
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# Kernel mode UAT testing for systemg - Real sysadmin scenarios
FROM rust:1.75 AS builder

WORKDIR /app
COPY . .
RUN cargo build --release

FROM ubuntu:22.04

# Install minimal dependencies for testing
RUN apt-get update && apt-get install -y \
    sudo \
    python3 \
    procps \
    lsof \
    && rm -rf /var/lib/apt/lists/*

# Copy local sysg binary built from the current workspace.
COPY --from=builder /app/target/release/sysg /usr/local/bin/
RUN chmod +x /usr/local/bin/sysg

# Create directories for kernel mode operation
RUN mkdir -p /var/run/systemg /var/log/systemg /etc/systemg
RUN chmod 755 /var/run/systemg /var/log/systemg /etc/systemg

# Create mock users for service testing.
RUN useradd -r -s /bin/false postgres || true
RUN useradd -r -s /bin/false redis || true

# Create required directories for mock services.
RUN mkdir -p /var/lib/postgresql /var/lib/redis /var/log/nginx /var/cache/nginx /backup
RUN chown postgres:postgres /var/lib/postgresql
RUN chown redis:redis /var/lib/redis

# Copy test infrastructure
COPY tests/docker/kernel/run_kernel_tests.sh /root/run_kernel_tests.sh
COPY tests/docker/kernel/services/ /root/services/
RUN chmod +x /root/run_kernel_tests.sh

# Install mock service binaries used by the kernel scenarios.
RUN cp /root/services/mock_postgres.sh /usr/local/bin/postgres && \
    cp /root/services/mock_nginx.sh /usr/local/bin/nginx && \
    cp /root/services/mock_redis.sh /usr/local/bin/redis-server && \
    cp /root/services/mock_pg_isready.sh /usr/local/bin/pg_isready && \
    cp /root/services/mock_redis_cli.sh /usr/local/bin/redis-cli && \
    cp /root/services/mock_initdb.sh /usr/local/bin/initdb && \
    cp /root/services/mock_pg_dump.sh /usr/local/bin/pg_dump && \
    chmod +x /usr/local/bin/postgres /usr/local/bin/nginx /usr/local/bin/redis-server \
             /usr/local/bin/pg_isready /usr/local/bin/redis-cli /usr/local/bin/initdb \
             /usr/local/bin/pg_dump

# Set up proper init system (systemd requires --privileged)
ENV container=docker
STOPSIGNAL SIGRTMIN+3

# Run kernel mode tests
WORKDIR /root
CMD ["/bin/bash", "/root/run_kernel_tests.sh"]