Docker Containers for Test Environments

# Automotive ECU test environment Docker image
FROM ubuntu:22.04

# Prevent interactive prompts
ENV DEBIAN_FRONTEND=noninteractive

# System packages: Python, CAN utilities
RUN apt-get update && apt-get install -y \
    python3.11 python3-pip \
    can-utils \
    iproute2 \
    && rm -rf /var/lib/apt/lists/*

# Python test dependencies
COPY requirements.txt /tmp/
RUN pip3 install --no-cache-dir -r /tmp/requirements.txt

# requirements.txt contents:
# python-can==4.3.1
# cantools==39.4.4
# python-uds==1.0.8
# pytest==8.0.0
# pytest-html==4.1.1
# pytest-xdist==3.5.0

# Copy test framework
WORKDIR /tests
COPY . .

# Entrypoint: setup vcan and run tests
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

#!/bin/bash
set -e

# Setup virtual CAN interface (requires --privileged or NET_ADMIN cap)
modprobe vcan 2>/dev/null || true
ip link add dev vcan0 type vcan 2>/dev/null || true
ip link set up vcan0

echo "vcan0 ready: $(ip link show vcan0 | grep -o "state [A-Z]*")"

# Run tests with virtual CAN
exec pytest tests/ \
    --can-channel=vcan0 \
    --dbc=/tests/signal_databases/vehicle.dbc \
    --junit-xml=/reports/results.xml \
    --html=/reports/report.html \
    -m "not hil" \
    "$@"