# use alpine as base image FROM ubuntu:16.04 RUN apt-get update RUN apt-get -y install openjdk-8-jdk ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64 # recommended by spring boot VOLUME /tmp # create directory for application RUN mkdir /app WORKDIR /app # jar target ENV JAR_TARGET "cosmos_server-sb-0.0.1-SNAPSHOT.jar" # set entrypoint to execute spring boot application ENTRYPOINT ["sh","-c","java -jar build/libs/${JAR_TARGET}"]