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71 lines
2.3 KiB
Docker
71 lines
2.3 KiB
Docker
# FlaskPaste Slim Container Image (Alpine)
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# Build: podman build -f Containerfile.slim -t flaskpaste:slim .
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# Run: podman run -d -p 5000:5000 -v flaskpaste-data:/app/data flaskpaste:slim
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#
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# Alpine: Minimal base image with musl libc, actively maintained security patches
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# For debugging with more tools, use the standard Containerfile instead
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# Stage 1: Build dependencies
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FROM python:3.11-alpine AS builder
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WORKDIR /build
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# Install build dependencies for compiled Python packages
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RUN apk add --no-cache gcc musl-dev libffi-dev
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# Create virtual environment and upgrade pip
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RUN python -m venv /opt/venv
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ENV PATH="/opt/venv/bin:$PATH"
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RUN pip install --no-cache-dir --upgrade "pip>=25.3" wheel
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# Install Python dependencies (includes security pins from requirements.txt)
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COPY requirements.txt .
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RUN pip install --no-cache-dir -r requirements.txt gunicorn && \
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pip install --no-cache-dir --force-reinstall "jaraco.context>=6.1.0"
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# Stage 2: Alpine runtime (minimal)
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FROM python:3.11-alpine
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LABEL maintainer="FlaskPaste"
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LABEL description="Minimal secure pastebin REST API (Alpine)"
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# Apply security fixes to base image (versions from requirements.txt)
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COPY requirements.txt /tmp/
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RUN pip install --no-cache-dir --upgrade pip && \
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pip install --no-cache-dir -r /tmp/requirements.txt && \
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pip install --no-cache-dir --force-reinstall "jaraco.context>=6.1.0" && \
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rm /tmp/requirements.txt
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# Create non-root user
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RUN addgroup -g 65532 -S flaskpaste && adduser -u 65532 -S -G flaskpaste flaskpaste
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# Copy virtual environment from builder
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COPY --from=builder /opt/venv /opt/venv
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ENV PATH="/opt/venv/bin:$PATH"
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WORKDIR /app
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# Copy application files
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COPY --chown=65532:65532 app/ ./app/
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COPY --chown=65532:65532 wsgi.py .
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COPY --chown=65532:65532 fpaste .
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# Create data directory
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RUN mkdir -p /app/data && chown -R flaskpaste:flaskpaste /app
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USER flaskpaste
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# Environment configuration
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ENV FLASK_ENV=production
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ENV FLASKPASTE_DB=/app/data/pastes.db
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ENV PYTHONUNBUFFERED=1
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ENV PYTHONDONTWRITEBYTECODE=1
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EXPOSE 5000
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HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
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CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')" || exit 1
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CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "2", "--access-logfile", "-", "wsgi:application"]
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