新建Dockerfile
内容如下
FROM openjdk:8u272-jdk as builder
WORKDIR application
ARG JAR_FILE=target/app-2.0.jar
COPY ${JAR_FILE} application.jar
RUN java -Djarmode=layertools -jar application.jar extract
FROM openjdk:8u272-jdk
WORKDIR application
COPY --from=builder application/dependencies/ ./
COPY --from=builder application/snapshot-dependencies/ ./
COPY --from=builder application/spring-boot-loader/ ./
COPY --from=builder application/application/ ./
COPY docker-entrypoint.sh ./
RUN chmod +x docker-entrypoint.sh
ENTRYPOINT ["./docker-entrypoint.sh"]
新建docker-entrypoint.sh，内容如下
#!/bin/bash java $JAVA_OPTS -server -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:-OmitStackTraceInFastThrow -Djava.security.egd=file:/dev/./urandom org.springframework.boot.loader.JarLauncher
