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asimonson1125.github.io/Dockerfile

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Docker
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# Use a slimmer base image to reduce image size and pull times
FROM python:3.10-slim-bullseye
LABEL maintainer="Andrew Simonson <asimonson1125@gmail.com>"
# Set environment variables for better Python performance in Docker
ENV PYTHONDONTWRITEBYTECODE=1 \
PYTHONUNBUFFERED=1 \
PIP_NO_CACHE_DIR=1
WORKDIR /app
# Create a non-root user for security
RUN groupadd -r appuser && useradd -r -g appuser appuser
# Copy only the requirements file first to leverage Docker layer caching
COPY src/requirements.txt .
# Install dependencies as root, but then switch to the non-root user
RUN pip install -r requirements.txt
# Copy the rest of the source code
COPY src/ .
# Ensure the appuser owns the app directory
RUN chown -R appuser:appuser /app
# Switch to the non-root user for better security
USER appuser
# Expose the port (Gunicorn's default or specified in CMD)
EXPOSE 8080
# Start Gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:8080", "app:app"]