Update Dockerfile

Dockerfile

@@ -4,7 +4,7 @@ FROM python:3.9-slim
 # Set working directory
 WORKDIR /app
 
-# Install system dependencies
+# Install system dependencies required for RDKit and other packages
 RUN apt-get update && apt-get install -y \
     gcc \
     g++ \
@@ -17,26 +17,31 @@ RUN apt-get update && apt-get install -y \
     libfontconfig1 \
     libcairo2-dev \
     libpango1.0-dev \
-    libgdk-pixbuf-xlib-2.0-dev \
+    libgdk-pixbuf2.0-dev \
     libgtk-3-dev \
-    libxrender-dev \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements first
+# Copy requirements first for better Docker layer caching
 COPY requirements.txt .
 
 # Install Python dependencies
-RUN pip cache purge && pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy the application code
 COPY . .
 
-# Create a non-root user
+# Create a non-root user for security
 RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
 USER appuser
 
-# Expose the port
+# Expose the port that Streamlit uses
 EXPOSE 7860
 
+# Set environment variables for Streamlit
+ENV STREAMLIT_SERVER_ADDRESS=0.0.0.0
+ENV STREAMLIT_SERVER_PORT=7860
+ENV STREAMLIT_SERVER_HEADLESS=true
+ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
+
 # Command to run the application
-CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]
+CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]