cvs-proxy/Dockerfile
Juan José Gutiérrez de Quevedo Pérez 7614131511 build: optimize Dockerfile for better layer caching and smaller image size
- Combined apt-get commands into a single RUN layer
- Added --no-install-recommends flag to avoid unnecessary packages
- Cleaned up apt cache and removed package lists after installation
- Reordered COPY commands to copy requirements.txt first for better Docker layer caching
- Separated COPY of requirements.txt from the rest of the application code
2025-11-21 18:49:15 +01:00

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Docker

FROM python:3-bookworm
# Set working directory
WORKDIR /app
# Install runtime dependencies in a single layer and clean up apt cache
RUN apt-get update && \
apt-get install -y --no-install-recommends \
cvs \
rsh-client \
cvsps && \
apt-get clean && \
rm -rf /var/lib/apt/lists/*
# Copy requirements first for better layer caching
COPY requirements.txt .
# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt
# Copy the rest of the application
COPY . .
# Install the package
RUN pip install --no-cache-dir -e .
# Set environment variables for configuration (with defaults)
ENV CVS_URL="" \
REPO_CHECKOUTS=/tmp/cvs_checkouts \
CVS_MODULE="" \
BASEPATH="" \
FLASK_HOST=0.0.0.0 \
FLASK_PORT=5000 \
FLASK_DEBUG=false \
CVS_RSH=rsh
# Expose the application port
EXPOSE 5000
# Set the entrypoint to run the application with environment variables as command-line arguments
ENTRYPOINT ["sh", "-c", "python -m cvs_proxy.app --cvs-url \"$CVS_URL\" --repo-checkouts \"$REPO_CHECKOUTS\" ${CVS_MODULE:+--cvs-module \"$CVS_MODULE\"} ${BASEPATH:+--basepath \"$BASEPATH\"} --host \"$FLASK_HOST\" --port \"$FLASK_PORT\" ${FLASK_DEBUG:+--debug}"]