updated docker file

Dockerfile

@@ -6,20 +6,24 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     gcc \
     python3-dev \
 	wget \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /var/lib/apt/lists
+	
+	
+# Create non-root user
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
+WORKDIR /app
 
 # Set environment variables
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONIOENCODING=UTF-8
 
-# Set working directory in the container
-WORKDIR /app
 
-# Copy the requirements file into the container
-COPY requirements.txt /app/
+# Install Python dependencies in layers for better caching
+COPY --chown=user ./requirements.txt requirements.txt
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
-# Install dependencies
-RUN pip install --no-cache-dir -r requirements.txt
 
 # Install data science packages
 RUN pip install --no-cache-dir \
@@ -27,9 +31,13 @@ RUN pip install --no-cache-dir \
     scikit-learn \
     matplotlib \
     seaborn
+	
+	
+# Setup IPython kernel
+RUN ipython kernel install --name "python3" --user
 
-# Copy the FastAPI app code into the container
-COPY . /app
+# Copy application code
+COPY --chown=user . /app
 
 RUN chmod +x /app/download_data.sh
 RUN /app/download_data.sh