Update Dockerfile

Dockerfile

@@ -1,10 +1,53 @@
-FROM python:3.10
+# Build stage
+FROM python:3.10 as builder
 
+# Install build dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create user
 RUN useradd user
-USER user
+
+# Set up environment
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
+
+WORKDIR $HOME/app
+
+# Copy requirements first for better caching
+COPY --chown=user requirements.txt .
+
+# Install Python dependencies to user directory
+USER user
+RUN pip install --user --no-cache-dir -r requirements.txt
+
+# Production stage
+FROM python:3.10-slim as production
+
+# Install only runtime dependencies if needed
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    # Add any runtime dependencies here \
+    && rm -rf /var/lib/apt/lists/* \
+    && apt-get clean
+
+# Create user
+RUN useradd user
+
+# Set up environment
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH \
+    PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1
+
 WORKDIR $HOME/app
+
+# Copy installed packages from builder stage
+COPY --from=builder --chown=user /home/user/.local /home/user/.local
+
+# Copy application code
 COPY --chown=user ./ $HOME/app
-RUN pip install -r requirements.txt
+
+USER user
+
 CMD ["python", "app.py"]