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feat: refactor enterprise-java image to use sdkman #308

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feat: refactor enterprise-java image to use sdkman #308

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5873c6c
Bump OpenJDK to version 21, bump Gradle to version 8.14.3, & bump Mav…
tw29845 Aug 18, 2025
158975b
Refactored Dockerfile to use SDKMAN. Reconfigured Java, Gradle, & Mav…
tw29845 Aug 18, 2025
a2c211e
Verify SDKMAN install script. Flush APT and SDKMAN caches to shrinks …
tw29845 Aug 20, 2025
06bab22
Updated to use CI mode SDKMAN install script
tw29845 Aug 21, 2025
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Verify SDKMAN install script. Flush APT and SDKMAN caches to shrinks … 
…image size. Formatting.

(cherry picked from commit a555519)
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@tw29845 @johnstcn
tw29845 authored and johnstcn committed Aug 21, 2025
commit a2c211e319af114ba6bfbbd72689ebe5033691d2
54 changes: 34 additions & 20 deletions images/java/ubuntu.Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,23 +1,37 @@
FROM codercom/enterprise-base:ubuntu

ENV DEBIAN_FRONTEND="noninteractive"
ENV JAVA_VERSION="21.0.8-tem"
ENV GRADLE_VERSION="8.14.3"
ENV MAVEN_VERSION="3.9.11"
ENV MAVEN_CONFIG="/home/coder/.m2"
ARG DEBIAN_FRONTEND="noninteractive"
ARG SDKMAN_SHA512="ade94c3b8454bac9411139a46adbd68a16f05766b9bc6fa7061535bbce353c93578393e46cc0d90c630691774d1057b234134fe7af105e1e649f4e8811794de4"

RUN sudo apt-get update && \
sudo apt-get install --yes --no-install-recommends --no-install-suggests zip && \
curl -fsSL "https://get.sdkman.io" | bash && \
source "/home/coder/.sdkman/bin/sdkman-init.sh" && \
sdk version && \
sdk install java $JAVA_VERSION && \
sdk default java $JAVA_VERSION && \
sdk install gradle $GRADLE_VERSION && \
sdk default gradle $GRADLE_VERSION && \
sdk install maven $MAVEN_VERSION && \
sdk default maven $MAVEN_VERSION && \
sdk flush && \
sdk current java && \
sdk current gradle && \
sdk current maven
ENV SDKMAN_DIR="/home/coder/.sdkman" \
SDKMAN_CLI_AUTO_CONFIRM=true \
JAVA_VERSION="21.0.8-tem" \
GRADLE_VERSION="8.14.3" \
MAVEN_VERSION="3.9.11" \
MAVEN_CONFIG="/home/coder/.m2"

USER root

RUN apt-get update -qq && \
apt-get install -qq -y \
--no-install-recommends \
--no-install-suggests \
zip && \
rm -rf /var/lib/apt/lists/*

USER coder

RUN curl -fsSL https://get.sdkman.io -o /tmp/install_sdkman.sh && \
echo "${SDKMAN_SHA512} /tmp/install_sdkman.sh" | sha512sum -c - && \
bash /tmp/install_sdkman.sh && \
rm /tmp/install_sdkman.sh && \
bash -c "source ${SDKMAN_DIR}/bin/sdkman-init.sh && \
sdk install java ${JAVA_VERSION} && \
sdk default java ${JAVA_VERSION} && \
sdk install gradle ${GRADLE_VERSION} && \
sdk default gradle ${GRADLE_VERSION} && \
sdk install maven ${MAVEN_VERSION} && \
sdk default maven ${MAVEN_VERSION} && \
sdk flush archives && \
sdk flush temp && \
sdk current"