Update Dockerfile

Dockerfile

@@ -1,68 +1,64 @@
-# Download base image ubuntu 18.04
-FROM ubuntu:18.04
+# Use the latest Ubuntu LTS base image
+FROM ubuntu:22.04
 
 # Set environment variables
-ENV NB_USER jovyan
-ENV NB_UID 1000
-ENV HOME /home/${NB_USER}
-ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64/
+ENV NB_USER=jovyan
+ENV NB_UID=1000
+ENV HOME=/home/${NB_USER}
+ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64/
 
-# Install required packages
-RUN apt-get update && apt-get install -y \
-    tar \
+# Upgrade the system and install required packages
+RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y \
+    software-properties-common \
     wget \
+    curl \
+    tar \
     bash \
     rsync \
     gcc \
     libfreetype6-dev \
-    libhdf5-serial-dev \
+    libhdf5-dev \
     libpng-dev \
-    libzmq3-dev \
-    python3 \
-    python3-dev \
-    python3-pip \
+    libzmq5-dev \
     unzip \
     pkg-config \
-    software-properties-common \
     graphviz \
-    openjdk-8-jdk \
+    openjdk-17-jdk \
+    python3.11 \
+    python3.11-dev \
+    python3.11-venv \
+    python3-pip \
     ant \
-    ca-certificates-java \
+    ca-certificates \
     && apt-get clean \
     && update-ca-certificates -f
 
-# Install Python 3.8 and pip
-RUN add-apt-repository ppa:deadsnakes/ppa \
-    && apt-get update \
-    && apt-get install -y python3.8 python3-pip \
-    && apt-get clean
-
-# Set up JAVA_HOME
-RUN echo "export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/" >> /etc/profile \
+# Set up JAVA_HOME for OpenJDK 17 (latest stable release)
+RUN echo "export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64/" >> /etc/profile \
     && echo "export PATH=\$JAVA_HOME/bin:\$PATH" >> /etc/profile
-# Create a new user named "jovyan" with user ID 1000
+
+# Upgrade Python tools (pip, setuptools, wheel)
+RUN python3.11 -m pip install --upgrade pip setuptools wheel
+
+# Create a new user with a specific UID
 RUN useradd -m -u ${NB_UID} ${NB_USER}
 
-# Switch to the "jovyan" user
+# Switch to the new user
 USER ${NB_USER}
 
-# Set home and path variables for the user
-ENV HOME=/home/${NB_USER} \
-    PATH=/home/${NB_USER}/.local/bin:$PATH
-
-# Set up PySpark to use Python 3.8 for both driver and workers
-ENV PYSPARK_PYTHON=/usr/bin/python3.8
-ENV PYSPARK_DRIVER_PYTHON=/usr/bin/python3.8
+# Set user-specific environment variables
+ENV HOME=/home/${NB_USER}
+ENV PATH=/home/${NB_USER}/.local/bin:$PATH
 
-# Set the working directory to the user's home directory
-WORKDIR ${HOME}
+# 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
 
-# Upgrade pip and install Python dependencies
-RUN python3.8 -m pip install --upgrade pip
+# Install the latest Python dependencies from requirements.txt
 COPY requirements.txt /tmp/requirements.txt
-RUN python3.8 -m pip install -r /tmp/requirements.txt
+RUN python3.11 -m pip install --upgrade -r /tmp/requirements.txt
 
-# Copy the application code into the container at /home/jovyan
+# Copy application code to the container
 COPY --chown=${NB_USER}:${NB_USER} . ${HOME}
 
 # Expose port for Streamlit