asmhatreandClaude Sonnet 5
2f88734f5d
MaxRAMPercentage vs a hardcoded -Xmx, -XX:-UseContainerSupport, the ActiveProcessorCount lie, and which diagnostic flags are worth leaving on in prod, verified in real Docker containers on JDK 25 and JDK 27. Co-Authored-By: Claude Sonnet 5 <[email protected]>
13 lines
606 B
Docker
13 lines
606 B
Docker
# No eclipse-temurin:27-* tag exists on Docker Hub yet (checked 2026-10-01) so this
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# installs the Adoptium Temurin 27 GA tarball directly onto a slim Ubuntu base.
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FROM ubuntu:24.04
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RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates && rm -rf /var/lib/apt/lists/*
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COPY temurin27.tar.gz /tmp/temurin27.tar.gz
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RUN mkdir -p /opt/java && tar -xzf /tmp/temurin27.tar.gz -C /opt/java --strip-components=1 && rm /tmp/temurin27.tar.gz
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ENV JAVA_HOME=/opt/java
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ENV PATH=$JAVA_HOME/bin:$PATH
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WORKDIR /app
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COPY flags-demo.jar app.jar
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EXPOSE 8080
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ENTRYPOINT ["java","-jar","/app/app.jar"]
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