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Dockerfile

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+# eamco_address_checker Dockerfile
+# Lightweight Python 3.11 image for Unraid Docker deployment
+
+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PYTHONPATH=/app \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies (psycopg2 requirements)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpq-dev \
+    gcc \
+    && rm -rf /var/lib/apt/lists/* \
+    && apt-get clean
+
+# Copy requirements first (for better layer caching)
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY app/ ./app/
+
+# Create non-root user for security
+RUN useradd --create-home --shell /bin/bash appuser && \
+    chown -R appuser:appuser /app
+USER appuser
+
+# Expose port
+EXPOSE 8000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1
+
+# Run the application
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]