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flaskpaste/Containerfile
2026-01-18 10:46:47 +01:00

69 lines
1.9 KiB
Docker

# FlaskPaste Container Image (Multi-Stage Build)
# Build: podman build -t flaskpaste .
# Run: podman run -d -p 5000:5000 -v flaskpaste-data:/app/data flaskpaste
# Stage 1: Build dependencies
FROM python:3.11-slim AS builder
WORKDIR /build
# Install build dependencies and clean up
RUN apt update && apt install -y --no-install-recommends gcc \
&& apt clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
# Create virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
# Upgrade pip/setuptools first (pulls in security-fixed jaraco.context)
RUN pip install --no-cache-dir --upgrade pip setuptools wheel
# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt gunicorn
# Stage 2: Runtime image
FROM python:3.11-slim
LABEL maintainer="FlaskPaste"
LABEL description="Lightweight secure pastebin REST API"
# Clean base image caches and create non-root user
RUN apt clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
&& groupadd -r flaskpaste && useradd -r -g flaskpaste flaskpaste
# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
# Set working directory
WORKDIR /app
# Copy only necessary application files
COPY app/ ./app/
COPY wsgi.py .
COPY fpaste .
# Create data directory with correct ownership
RUN mkdir -p /app/data && chown -R flaskpaste:flaskpaste /app
# Switch to non-root user
USER flaskpaste
# Environment defaults
ENV FLASK_ENV=production
ENV FLASKPASTE_DB=/app/data/pastes.db
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
# Expose port
EXPOSE 5000
# Health check
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')" || exit 1
# Run with gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "2", "--access-logfile", "-", "wsgi:application"]