25 lines
865 B
Docker
25 lines
865 B
Docker
# Multi-Stage-Build builder
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# Extract layers from application to minimize image size
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FROM adoptopenjdk/openjdk11:alpine-slim AS builder
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WORKDIR application
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ARG JAR_FILE=target/*.jar
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COPY ${JAR_FILE} application.jar
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RUN java -Djarmode=layertools -jar application.jar extract
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# Build the actual image
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FROM adoptopenjdk/openjdk11:alpine-slim
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WORKDIR /application
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COPY --from=builder application/dependencies/ ./
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COPY --from=builder application/spring-boot-loader/ ./
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COPY --from=builder application/snapshot-dependencies/ ./
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COPY --from=builder application/application/ ./
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EXPOSE 8080
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ENV JAVA_OPTIONS=""
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HEALTHCHECK --interval=30s --timeout=30s --retries=3 \
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CMD wget --no-verbose --spider http://localhost:8080/actuator/health || exit 1
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CMD ["java", "org.springframework.boot.loader.JarLauncher", "-XX:+UseSerialGC", "-XX:MaxRAM=256m", "${JAVA_OPTIONS}" ] |