Dockerfile.testing

# IonicTrace Linux Testing Environment
# Optimized for eBPF and io_uring development

FROM ubuntu:22.04

LABEL maintainer="Mohammad Tanzil Idrisi <idrisitanzil@gmail.com>"
LABEL description="IonicTrace Linux testing environment with eBPF and io_uring support"

# Prevent interactive prompts during package installation
ENV DEBIAN_FRONTEND=noninteractive
ENV TZ=UTC

# Set up environment variables for eBPF development
ENV BPF_CLANG=clang
ENV BPF_CFLAGS="-O2 -g -Wall -Werror"
ENV CARGO_TARGET_BPF_LINKER=bpf-linker
ENV RUST_LOG=info
ENV RUST_BACKTRACE=1

# Install system dependencies
RUN apt-get update && apt-get install -y \
    # Build essentials
    build-essential \
    pkg-config \
    curl \
    wget \
    git \
    # eBPF development tools
    clang \
    llvm \
    libbpf-dev \
    linux-headers-generic \
    linux-libc-dev \
    # io_uring development
    liburing-dev \
    # Network utilities for testing
    iproute2 \
    iputils-ping \
    tcpdump \
    net-tools \
    # Performance analysis tools
    linux-tools-generic \
    htop \
    # Debugging tools
    strace \
    gdb \
    valgrind \
    # Other utilities
    vim \
    less \
    tree \
    && rm -rf /var/lib/apt/lists/*

# Create symbolic link for asm headers
RUN mkdir -p /usr/include/asm && \
    ln -sf /usr/include/x86_64-linux-gnu/asm/* /usr/include/asm/ 2>/dev/null || \
    ln -sf /usr/include/x86_64-linux-gnu/asm/types.h /usr/include/asm/types.h 2>/dev/null || true

# Install Rust toolchain
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
ENV PATH="/root/.cargo/bin:${PATH}"

# Install BPF linker
RUN /root/.cargo/bin/cargo install bpf-linker

# Create working directory
WORKDIR /workspace

# Set up test network interfaces script
RUN echo '#!/bin/bash\n\
set -e\n\
echo "Setting up test network interfaces..."\n\
ip link add veth0 type veth peer name veth1\n\
ip link set veth0 up\n\
ip link set veth1 up\n\
ip addr add 192.168.100.1/24 dev veth0\n\
ip addr add 192.168.100.2/24 dev veth1\n\
echo "Test interfaces veth0/veth1 ready"' > /usr/local/bin/setup-test-interfaces.sh

RUN chmod +x /usr/local/bin/setup-test-interfaces.sh

# Performance optimization script
RUN echo '#!/bin/bash\n\
echo "Applying performance optimizations..."\n\
# Disable CPU frequency scaling if cpufreq is available\n\
if command -v cpupower >/dev/null 2>&1; then\n\
    cpupower frequency-set --governor performance 2>/dev/null || true\n\
fi\n\
# Set memory map limits\n\
echo 262144 > /proc/sys/vm/max_map_count 2>/dev/null || true\n\
# Disable timer migration for consistent latencies\n\
echo 0 > /proc/sys/kernel/timer_migration 2>/dev/null || true\n\
echo "Performance optimizations applied"' > /usr/local/bin/optimize-performance.sh

RUN chmod +x /usr/local/bin/optimize-performance.sh

# System validation script
RUN echo '#!/bin/bash\n\
echo "🔍 Validating IonicTrace requirements..."\n\
echo "Kernel: $(uname -r)"\n\
echo "Architecture: $(uname -m)"\n\
echo "CPU cores: $(nproc)"\n\
echo "Memory: $(free -h | awk \"/^Mem:/{print \\$2}\")"\n\
echo ""\n\
echo "eBPF Support:"\n\
ls -la /sys/fs/bpf/ 2>/dev/null && echo "  ✅ eBPF filesystem available" || echo "  ❌ eBPF filesystem not available"\n\
grep -q bpf /proc/kallsyms && echo "  ✅ BPF syscalls available" || echo "  ❌ BPF syscalls not available"\n\
echo ""\n\
echo "io_uring Support:"\n\
[ -e /proc/sys/kernel/io_uring_disabled ] && echo "  ✅ io_uring kernel support detected" || echo "  ✅ io_uring support assumed (no disable flag)"\n\
echo ""\n\
echo "Development Tools:"\n\
clang --version | head -1 | sed "s/^/  ✅ /"\n\
llvm-config --version | sed "s/^/  ✅ LLVM version: /"\n\
cargo --version | sed "s/^/  ✅ /"\n\
rustc --version | sed "s/^/  ✅ /"\n\
bpf-linker --version 2>/dev/null | sed "s/^/  ✅ /" || echo "  ❌ bpf-linker not available"\n\
echo ""\n\
echo "🚀 Environment ready for IonicTrace testing!"' > /usr/local/bin/validate-environment.sh

RUN chmod +x /usr/local/bin/validate-environment.sh

# Copy project files (when building)
COPY . /workspace/

# Set proper permissions
RUN chmod +x /workspace/linux_validation.sh 2>/dev/null || true

# Expose any ports that might be needed for testing
EXPOSE 8080-8090

# Set entrypoint
ENTRYPOINT ["/bin/bash"]
CMD ["-c", "validate-environment.sh && exec bash"]

# Add helpful aliases
RUN echo 'alias ll="ls -la"' >> /root/.bashrc && \
    echo 'alias ionic="./target/release/ionic-trace"' >> /root/.bashrc && \
    echo 'alias test-net="setup-test-interfaces.sh"' >> /root/.bashrc && \
    echo 'alias perf-opt="optimize-performance.sh"' >> /root/.bashrc && \
    echo 'export PS1="[IonicTrace] \\w # "' >> /root/.bashrc

# Information about the container
RUN echo '#!/bin/bash\n\
echo "🐳 IonicTrace Linux Testing Container"\n\
echo "====================================="\n\
echo ""\n\
echo "Quick Start:"\n\
echo "  validate-environment.sh  # Check system requirements"\n\
echo "  setup-test-interfaces.sh # Set up veth interfaces"\n\
echo "  ./linux_validation.sh    # Run full validation suite"\n\
echo ""\n\
echo "Manual Testing:"\n\
echo "  cargo build --release    # Build with eBPF + io_uring"\n\
echo "  ionic check              # Check system capabilities"\n\
echo "  ionic demo --duration 10 # Run demonstration"\n\
echo ""\n\
echo "Performance Testing:"\n\
echo "  optimize-performance.sh  # Apply performance optimizations"\n\
echo "  ionic benchmark --duration 30 --target-ops 100000"\n\
echo ""\n\
echo "Debug Commands:"\n\
echo "  sudo bpftool prog list   # List loaded eBPF programs"\n\
echo "  sudo perf trace -e io_uring* # Trace io_uring operations"\n\
echo "  sudo tcpdump -i veth0    # Monitor network traffic"\n\
echo ""' > /usr/local/bin/help.sh

RUN chmod +x /usr/local/bin/help.sh