Update Dockerfile

Dockerfile

@@ -1,56 +1,72 @@
-# Use an older Ubuntu version that supports Python 3.4
-FROM ubuntu:14.04
+# Download base image ubuntu 
+FROM ubuntu
 
-# Update package lists and install required dependencies
+# Set environment variables
+ENV NB_USER jovyan
+ENV NB_UID 1000
+ENV HOME /home/${NB_USER}
+ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64/
+
+# Install required packages
 RUN apt-get update && apt-get install -y \
-    software-properties-common \
-    build-essential \
-    libssl-dev \
-    zlib1g-dev \
-    libncurses5-dev \
-    libgdbm-dev \
-    libnss3-dev \
-    libreadline-dev \
-    libffi-dev \
+    tar \
     wget \
-    curl \
-    && rm -rf /var/lib/apt/lists/*
-
-# Add deadsnakes PPA for Python 3.4
-RUN add-apt-repository ppa:deadsnakes/ppa && apt-get update
-
-# Install Python 3.4
-RUN apt-get install -y python3.4 python3.4-dev python3.4-venv
+    bash \
+    rsync \
+    gcc \
+    libfreetype6-dev \
+    libhdf5-serial-dev \
+    libpng-dev \
+    libzmq3-dev \
+    python \
+    python-dev \
+    python-pip \
+    unzip \
+    pkg-config \
+    software-properties-common \
+    graphviz \
+    openjdk-8-jdk \
+    ant \
+    ca-certificates-java \
+    && apt-get clean \
+    && update-ca-certificates -f
 
-# Install pip for Python 3.4
-RUN curl https://bootstrap.pypa.io/pip/3.4/get-pip.py -o get-pip.py && \
-    python3.4 get-pip.py && \
-    rm get-pip.py
+# Install Python 3.8 and pip
+RUN add-apt-repository ppa:deadsnakes/ppa \
+    && apt-get update \
+    && apt-get install -y python python3-pip \
+    && apt-get clean
 
-# Verify Python and pip versions
-RUN python3.4 --version && python3.4 -m pip --version
+# Set up JAVA_HOME
+RUN echo "export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/" >> /etc/profile \
+    && echo "export PATH=\$JAVA_HOME/bin:\$PATH" >> /etc/profile
+# Create a new user named "jovyan" with user ID 1000
+RUN useradd -m -u ${NB_UID} ${NB_USER}
 
-# Copy requirements file (if applicable)
-COPY requirements.txt /tmp/requirements.txt
+# Switch to the "jovyan" user
+USER ${NB_USER}
 
-# Install Python dependencies
-RUN python3.4 -m pip install --no-cache-dir -r /tmp/requirements.txt
+# Set home and path variables for the user
+ENV HOME=/home/${NB_USER} \
+    PATH=/home/${NB_USER}/.local/bin:$PATH
 
-# Create a new user
-RUN useradd -m -u ${NB_UID} ${NB_USER}
+# Set up PySpark to use Python 3.8 for both driver and workers
+ENV PYSPARK_PYTHON=/usr/bin/python
+ENV PYSPARK_DRIVER_PYTHON=/usr/bin/python
 
-# Switch to the new user
-USER ${NB_USER}
+# Set the working directory to the user's home directory
+WORKDIR ${HOME}
 
-# Set user-specific environment variables
-ENV HOME=/home/${NB_USER}
-ENV PATH=/home/${NB_USER}/.local/bin:$PATH
+# Upgrade pip and install Python dependencies
+RUN python -m pip install --upgrade pip
+COPY requirements.txt /tmp/requirements.txt
+RUN python -m pip install -r /tmp/requirements.txt
 
-# Copy application code to the container
+# Copy the application code into the container at /home/jovyan
 COPY --chown=${NB_USER}:${NB_USER} . ${HOME}
 
 # Expose port for Streamlit
 EXPOSE 7860
 
 # Define the entry point for the container
-ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]
+ENTRYPOINT ["streamlit", "run", "Demo.py", "--server.port=7860", "--server.address=0.0.0.0"]