Update Dockerfile

Dockerfile

@@ -7,9 +7,6 @@ WORKDIR /app
 # Install Jupyter Notebook
 RUN pip install --no-cache-dir notebook
 
-# Create necessary directories for Jupyter runtime
-RUN mkdir -p /root/.local/share/jupyter/runtime
-
 # Copy your .ipynb file into the Docker container
 COPY ./Wallpaper_Preference_Learning.ipynb /app/Wallpaper_Preference_Learning.ipynb
 
@@ -19,8 +16,17 @@ COPY requirements.txt /app/requirements.txt
 # Install the dependencies
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Create necessary directories and set permissions
+RUN mkdir -p /root/.local/share/jupyter/runtime && \
+    mkdir -p /root/.local/share/jupyter && \
+    mkdir -p /root/.local/share && \
+    mkdir -p /root/.local && \
+    chmod -R 755 /root/.local
+
 # Expose the port that Jupyter Notebook will run on
-EXPOSE 7860 8888
+EXPOSE 8888
 
-# Run Jupyter Notebook
+# Run Jupyter Notebook as a non-root user
+RUN useradd -m jupyteruser
+USER jupyteruser
 CMD ["jupyter", "notebook", "--ip=0.0.0.0", "--port=8888", "--no-browser", "--allow-root"]