samples-java/sap-demo-java/Dockerfile at codex/java-dedup-sample · keploy/samples-java · GitHub

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# syntax=docker/dockerfile:1.7

# Uses amazoncorretto:21 — Amazon Linux 2023-based, minimal, JDK-ready.

# Matches the Maven toolchain (pom.xml targets Java 21). The jar is built

# outside Docker (mvn package); this image just packages it and runs it.

# K8s securityContext enforces the non-root runtime UID (1001).

# Docker Hub pull rate limits are avoided by relying on the locally cached

# amazoncorretto:21 image.

FROM amazoncorretto:21

WORKDIR /app

# Make /app world-readable so the K8s-enforced UID 1001 can read the jar.

COPY target/customer360.jar /app/customer360.jar

RUN chmod 755 /app && chmod 644 /app/customer360.jar

ENV JAVA_OPTS="-XX:MaxRAMPercentage=75 -XX:+ExitOnOutOfMemoryError -Djava.security.egd=file:/dev/./urandom"

EXPOSE 8080

ENTRYPOINT ["sh", "-c", "exec java $JAVA_OPTS -jar /app/customer360.jar"]

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