Dockerfile for Springboot

Dockerfile

FROM openjdk:8-jdk

ARG ARTIFACT_NAME
ARG SERVER_PORT=8080
ARG MANAGEMENT_PORT=8000

ENV SERVER_PORT ${SERVER_PORT}
ENV MANAGEMENT_SERVER_PORT ${MANAGEMENT_PORT}

EXPOSE ${SERVER_PORT}
EXPOSE ${MANAGEMENT_PORT}

RUN useradd -ms /bin/bash spring

USER spring
WORKDIR /home/spring

ADD --chown=spring:spring /${ARTIFACT_NAME} app.jar

# so that it has a file modification time (Docker creates all container files in an "unmodified" state by default)
RUN sh -c 'touch app.jar'

ENTRYPOINT ["java"]
CMD ["-Djava.security.egd=file:/dev/./urandom", "-jar", "app.jar"]