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+# FlaskPaste Slim Container Image (Distroless)
+# Build: podman build -f Containerfile.slim -t flaskpaste:slim .
+# Run:   podman run -d -p 5000:5000 -v flaskpaste-data:/app/data flaskpaste:slim
+#
+# Distroless: No shell, no package manager, minimal attack surface
+# For debugging, use the standard Containerfile instead
+
+# Stage 1: Build dependencies (identical to standard build)
+FROM python:3.11-slim AS builder
+
+WORKDIR /build
+
+# Install build dependencies
+RUN apt update && apt install -y --no-install-recommends gcc \
+    && apt clean && rm -rf /var/lib/apt/lists/*
+
+# Create virtual environment and upgrade pip
+RUN python -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+RUN pip install --no-cache-dir --upgrade pip wheel
+
+# Install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt gunicorn \
+    && rm -rf /opt/venv/lib/python*/site-packages/setuptools/_vendor/jaraco.context*.dist-info
+
+
+# Stage 2: Distroless runtime
+FROM gcr.io/distroless/python3-debian12:nonroot
+
+LABEL maintainer="FlaskPaste"
+LABEL description="Minimal secure pastebin REST API (distroless)"
+
+WORKDIR /app
+
+# Copy virtual environment from builder
+# Note: distroless uses /usr/lib/python3.11 as base, venv provides all deps
+COPY --from=builder /opt/venv/lib/python3.11/site-packages /app/.local/lib/python3.11/site-packages
+
+# Copy application files (owned by nonroot user - uid 65532)
+COPY --chown=65532:65532 app/ ./app/
+COPY --chown=65532:65532 wsgi.py .
+COPY --chown=65532:65532 fpaste .
+
+# Environment configuration
+ENV PYTHONPATH="/app/.local/lib/python3.11/site-packages"
+ENV FLASK_ENV=production
+ENV FLASKPASTE_DB=/app/data/pastes.db
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+EXPOSE 5000
+
+# Healthcheck without shell (no || exit 1)
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
+    CMD ["python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')"]
+
+# Run gunicorn directly via Python module
+ENTRYPOINT ["python", "-m", "gunicorn"]
+CMD ["--bind", "0.0.0.0:5000", "--workers", "2", "--access-logfile", "-", "wsgi:application"]