Update Dockerfile

Dockerfile

@@ -1,14 +1,14 @@
-# Use the latest Ubuntu LTS base image
-FROM ubuntu:22.04
+# Use an Ubuntu base image
+FROM ubuntu:18.04
 
 # Set environment variables
 ENV NB_USER=jovyan
 ENV NB_UID=1000
 ENV HOME=/home/${NB_USER}
-ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64/
+ENV JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/
 
-# Upgrade the system and install required packages
-RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y \
+# Install required system packages and Python 3.4
+RUN apt-get update && apt-get install -y \
     software-properties-common \
     wget \
     curl \
@@ -23,24 +23,23 @@ RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y \
     unzip \
     pkg-config \
     graphviz \
-    openjdk-17-jdk \
-    python3.11 \
-    python3.11-dev \
-    python3.11-venv \
+    openjdk-8-jdk \
+    python3.4 \
+    python3.4-dev \
     python3-pip \
     ant \
     ca-certificates \
     && apt-get clean \
     && update-ca-certificates -f
 
-# Set up JAVA_HOME for OpenJDK 17 (latest stable release)
-RUN echo "export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64/" >> /etc/profile \
+# Set up JAVA_HOME for OpenJDK 8
+RUN echo "export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/" >> /etc/profile \
     && echo "export PATH=\$JAVA_HOME/bin:\$PATH" >> /etc/profile
 
-# Upgrade Python tools (pip, setuptools, wheel)
-RUN python3.11 -m pip install --upgrade pip setuptools wheel
+# Upgrade pip for Python 3.4 (using an older version of pip)
+RUN python3.4 -m pip install --upgrade pip==9.0.3 setuptools==44.1.1
 
-# Create a new user with a specific UID
+# Create a new user
 RUN useradd -m -u ${NB_UID} ${NB_USER}
 
 # Switch to the new user
@@ -50,13 +49,9 @@ USER ${NB_USER}
 ENV HOME=/home/${NB_USER}
 ENV PATH=/home/${NB_USER}/.local/bin:$PATH
 
-# Set up PySpark to use Python 3.11 for both driver and workers
-ENV PYSPARK_PYTHON=/usr/bin/python3.11
-ENV PYSPARK_DRIVER_PYTHON=/usr/bin/python3.11
-
-# Install the latest Python dependencies from requirements.txt
+# Install Python dependencies from requirements.txt
 COPY requirements.txt /tmp/requirements.txt
-RUN python3.11 -m pip install --upgrade -r /tmp/requirements.txt
+RUN python3.4 -m pip install --no-cache-dir -r /tmp/requirements.txt
 
 # Copy application code to the container
 COPY --chown=${NB_USER}:${NB_USER} . ${HOME}
@@ -65,4 +60,4 @@ COPY --chown=${NB_USER}:${NB_USER} . ${HOME}
 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", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]