Update Dockerfile

Dockerfile

@@ -1,20 +1,25 @@
 FROM python:3.10-slim
 
-# Install basic tools
+# Install system tools
 RUN apt-get update && apt-get install -y git && apt-get clean
 
 # Install Python packages
 RUN pip install --upgrade pip
 RUN pip install jupyterlab transformers datasets scikit-learn torch pandas numpy matplotlib seaborn
 
-# Set working directory
+# Working directory
 WORKDIR /workspace
 
-# Set HOME environment to avoid PermissionError
+# Set environment to fix PermissionError
 ENV HOME=/workspace
+ENV JUPYTER_RUNTIME_DIR=/workspace/jupyter/runtime
+ENV JUPYTER_DATA_DIR=/workspace/jupyter/data
 
-# Copy files to container
+# Create directories explicitly
+RUN mkdir -p /workspace/jupyter/runtime && mkdir -p /workspace/jupyter/data
+
+# Copy all contents
 COPY . /workspace
 
-# Start JupyterLab
+# Launch JupyterLab
 CMD ["jupyter", "lab", "--ip=0.0.0.0", "--allow-root", "--NotebookApp.token=''", "--NotebookApp.password=''", "--no-browser", "--NotebookApp.allow_origin='*'"]