Update Dockerfile

Dockerfile

@@ -1,4 +1,4 @@
-# 1. Use an official Python runtime as a parent image
+# 1. Use the official Python slim image
 FROM python:3.12-slim
 
 # 2. Set environment variables
@@ -6,36 +6,31 @@ ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \
     PORT=7860
 
-# 3. Set the working directory in the container
 WORKDIR /app
 
-# 4. Install system dependencies (needed for some ML/Data packages)
+# 3. Install ONLY necessary system dependencies
+# Removed 'software-properties-common' as it is obsolete in Debian Trixie
 RUN apt-get update && apt-get install -y \
     build-essential \
     curl \
-    software-properties-common \
     && rm -rf /var/lib/apt/lists/*
 
-# 5. Copy requirements first to leverage Docker cache
+# 4. Install Python dependencies
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# 6. Copy the rest of the application code
+# 5. Copy application code
 COPY . .
 
-# 7. Create a non-root user for security (Hugging Face best practice)
+# 6. Hugging Face security best practices
 RUN useradd -m -u 1000 user
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
-
-# 8. Set the working directory to where the code lives
 WORKDIR $HOME/app
 COPY --chown=user . $HOME/app
 
-# 9. Expose the port Hugging Face Spaces expects
 EXPOSE 7860
 
-# 10. Run the application
-# Replace 'app.main:app' with your actual FastAPI entry point
+# 7. Run the application
 CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]