Update Dockerfile

Dockerfile

@@ -1,23 +1,31 @@
-# Use a stable base image
+# Use a stable Python 3.11 base image
 FROM python:3.11-slim
 
-# Set up a non-root user (Hugging Face security requirement)
+# Install system dependencies as root
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set the working directory
+WORKDIR /app
+
+# Copy requirements first to leverage Docker cache
+COPY requirements.txt .
+
+# Install Python packages as root into the system path
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Create a non-root user for security (HF requirement)
 RUN useradd -m -u 1000 user
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
-WORKDIR $HOME/app
-
-# Install dependencies
-COPY --chown=user requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Copy application files
+# Copy the rest of the app files as the new user
 COPY --chown=user . .
 
-# Hugging Face Spaces default to port 7860
+# Expose the mandatory Gradio port
 EXPOSE 7860
 
-# Run the app, binding to all network interfaces
+# Run the app
 CMD ["python", "app.py"]