Multi Stage Dockerfile with entry point which adds 10s delay. This fixes the problem of application crashing due to database not being available when it is launched.

Dockerfile

FROM schoolofdevops/maven:spring AS BUILD
WORKDIR /app
COPY . .
RUN mvn spring-javaformat:apply && \
    mvn package -DskipTests


FROM openjdk:8u201-jre-alpine  AS RUN
EXPOSE 8080
WORKDIR /run
COPY entrypoint.sh  /usr/local/bin/
COPY --from=BUILD /app/target/spring-petclinic-2.3.1.BUILD-SNAPSHOT.jar  petclinic.jar
RUN ln -s usr/local/bin/docker-entrypoint.sh /entrypoint.sh
ENTRYPOINT ["entrypoint.sh"]
CMD java -jar petclinic.jar