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Update Dockerfile: JDK 25 LTS via Temurin, bump tooling #304

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Merged
fey merged 1 commit into from
Jun 23, 2026
+27 −17
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Update Dockerfile: JDK 25 LTS via Temurin, bump tooling #304

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44 changes: 27 additions & 17 deletions Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,25 +1,35 @@
# syntax=docker/dockerfile:1
FROM hexletbasics/base-image:latest

ENV COURSE_DIR=/exercises-java

WORKDIR ${COURSE_DIR}

ENV PATH=${COURSE_DIR}/bin:$PATH

RUN apt-get update && apt-get install -yqq openjdk-21-jdk \
&& rm -rf /var/lib/apt/lists/*

ENV CHECKSTYLE_VERSION=11.0.1
RUN curl -L https://github.com/checkstyle/checkstyle/releases/download/checkstyle-${CHECKSTYLE_VERSION}/checkstyle-${CHECKSTYLE_VERSION}-all.jar > /opt/checkstyle.jar
RUN chmod 777 /opt/checkstyle.jar

ENV ASSERTJ_VERSION=3.27.4

RUN curl -L https://repo1.maven.org/maven2/org/assertj/assertj-core/${ASSERTJ_VERSION}/assertj-core-${ASSERTJ_VERSION}.jar > /opt/assertj.jar
RUN chmod 777 /opt/assertj.jar

ENV COMMONS_LANG3_VERSION=3.18.0
RUN curl -L https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/${COMMONS_LANG3_VERSION}/commons-lang3-${COMMONS_LANG3_VERSION}.jar > /opt/commons_lang3.jar
RUN chmod 777 /opt/commons_lang3.jar
# JDK ставим из Eclipse Temurin tarball, а не через apt: в базовом образе
# (Debian bookworm) apt предлагает только openjdk-17, поэтому LTS 25 берём
# напрямую из Adoptium. Подход не зависит от дистрибутива базы и multi-arch.
ARG JDK_VERSION=25
ENV JAVA_HOME=/opt/jdk
ENV PATH=${COURSE_DIR}/bin:${JAVA_HOME}/bin:$PATH

RUN ARCH=$(dpkg --print-architecture) \
&& case "$ARCH" in \
amd64) JARCH=x64 ;; \
arm64) JARCH=aarch64 ;; \
*) echo "unsupported arch: $ARCH" && exit 1 ;; \
esac \
&& mkdir -p ${JAVA_HOME} \
&& curl -fsSL "https://api.adoptium.net/v3/binary/latest/${JDK_VERSION}/ga/linux/${JARCH}/jdk/hotspot/normal/eclipse" -o /tmp/jdk.tar.gz \
&& tar -xzf /tmp/jdk.tar.gz -C ${JAVA_HOME} --strip-components=1 \
&& rm /tmp/jdk.tar.gz

ARG CHECKSTYLE_VERSION=13.6.0
ARG ASSERTJ_VERSION=3.27.7
ARG COMMONS_LANG3_VERSION=3.20.0

RUN curl -L https://github.com/checkstyle/checkstyle/releases/download/checkstyle-${CHECKSTYLE_VERSION}/checkstyle-${CHECKSTYLE_VERSION}-all.jar -o /opt/checkstyle.jar \
&& curl -L https://repo1.maven.org/maven2/org/assertj/assertj-core/${ASSERTJ_VERSION}/assertj-core-${ASSERTJ_VERSION}.jar -o /opt/assertj.jar \
&& curl -L https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/${COMMONS_LANG3_VERSION}/commons-lang3-${COMMONS_LANG3_VERSION}.jar -o /opt/commons_lang3.jar \
&& chmod 644 /opt/checkstyle.jar /opt/assertj.jar /opt/commons_lang3.jar

COPY . .
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