rebased to ubuntu again...

build/Dockerfile

@@ -1,14 +1,12 @@
-FROM python:slim-bookworm AS base
+FROM ubuntu:latest AS base
 
 # Copy Java from openjdk:26-oracle
 COPY --from=openjdk:21 /usr/java/openjdk-21 /usr/java/openjdk-21
 ENV JAVA_HOME=/usr/java/openjdk-21
-ENV PATH="${JAVA_HOME}/bin:${PATH}"
 
 # Copy Gradle from gradle:latest
 COPY --from=gradle:latest /opt/gradle /opt/gradle
 ENV GRADLE_HOME=/opt/gradle
-ENV PATH="${GRADLE_HOME}/bin:${PATH}"
 
 # Update and install dependencies
 RUN apt-get -y update
@@ -25,15 +23,24 @@ RUN apt-get install -y \
 RUN localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
 ENV LANG=en_US.utf8
 
-FROM base AS requirements
+FROM base AS python-init
+
+# Install Python
+RUN apt-get install -y \
+	python3 \
+    python3-pip \
+    python3-venv \
+	python3-tk \
+	python-is-python3
 
 # Install Python Packages
-RUN pip3 install \
+RUN pip install \
     requests \
     rich \
-    ipykernel
+    ipykernel \
+	--break-system-packages
 
-FROM requirements AS scala
+FROM python-init AS scala
 
 # Install Scala
 ARG SCALA_VERSION="3.7.3"
@@ -45,14 +52,6 @@ RUN curl -fsL --show-error ${URL} | tar xfz - -C /usr/share && \
 	chmod -R 755 /usr/share/scala && \
 	ln -s /usr/share/scala/bin/* /usr/local/bin
 
-# Install Gradle
-# ARG GRADLE_VERSION="9.1.0"
-# RUN wget https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip -P /tmp
-# RUN unzip -d /opt/gradle /tmp/gradle-${GRADLE_VERSION}-bin.zip
-# RUN ln -s /opt/gradle/gradle-${GRADLE_VERSION} /opt/gradle/latest
-# ENV GRADLE_HOME=/opt/gradle/latest
-# ENV PATH=$PATH:$GRADLE_HOME/bin
-
 FROM scala AS lth
 
 # Clears apt lists
@@ -66,4 +65,7 @@ RUN useradd --groups sudo --no-create-home --shell /bin/bash ${USER} \
 
 # Sets user and work directory
 USER ${USER}
-WORKDIR /home/${USER}
+WORKDIR /home/${USER}
+
+ENV PATH="${JAVA_HOME}/bin:${PATH}"
+ENV PATH="${GRADLE_HOME}/bin:${PATH}"