Files
kiosk-guestbook/Dockerfile
T
steve 0c8491ce7a feat: run container as non-root user
Create appuser with configurable UID/GID (default 1000, matching
example.env PID/GID vars) and switch to it before starting Gunicorn.
Override at build time with --build-arg UID=... --build-arg GID=...

Note: the /data volume mount must be owned by the matching UID on the
host for the DB to remain writable.
2026-03-09 20:13:21 -06:00

37 lines
1.1 KiB
Docker

# Use a lightweight Python image
FROM python:3.9-slim
# Set the working directory
WORKDIR /app
# Install system dependencies (including gettext for envsubst)
RUN apt-get update && apt-get install -y gettext && rm -rf /var/lib/apt/lists/*
# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
# Copy the application code and template files
COPY . .
# Copy the entrypoint script into the container and make it executable
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh
# Set environment variables (can be overridden by .env)
ENV FLASK_ENV=production
# Expose the port (Gunicorn will run on 8000)
EXPOSE 8000
# Create a non-root user. UID/GID match the PID/GID vars in example.env (default 1000).
# Override at build time with: docker build --build-arg UID=1001 --build-arg GID=1001
ARG UID=1000
ARG GID=1000
RUN groupadd -g ${GID} appuser && useradd -u ${UID} -g ${GID} -s /bin/sh -M appuser
RUN chown -R appuser:appuser /app /entrypoint.sh
USER appuser
# Use the entrypoint script as the container's command
CMD ["/entrypoint.sh"]