updated dockerfile

Dockerfile

@@ -0,0 +1,36 @@
+# Start from the official Jupyter docker-stacks image for PySpark
+FROM jupyter/pyspark-notebook:latest
+
+# Switch to root to install OS-level packages if needed
+USER root
+
+# (Optional) Install extra system dependencies here, e.g.:
+# RUN apt-get update && apt-get install -y vim && rm -rf /var/lib/apt/lists/*
+
+# Switch back to the 'jovyan' user (the default user in jupyter docker-stacks)
+USER $NB_UID
+
+# Create a working directory (already set to /home/jovyan by default).
+# We'll explicitly set it here for clarity.
+WORKDIR /home/jovyan/work
+
+# Copy any additional Python packages you need
+COPY requirements.txt /tmp/requirements.txt
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r /tmp/requirements.txt || true
+
+# Copy notebooks and data into the container
+COPY notebooks/ notebooks/
+COPY data/ data/
+
+# Expose Jupyter's default port
+EXPOSE 8888
+
+# Run Jupyter Notebook, disabling token & password
+CMD ["start.sh", "jupyter", "notebook", \
+     "--ip=0.0.0.0", \
+     "--port=8888", \
+     "--no-browser", \
+     "--NotebookApp.token=''", \
+     "--NotebookApp.password=''"]
+