dockerfile for spring boot app

FROM java:8-jdk-alpine

COPY ./target/demo-docker-0.0.1-SNAPSHOT.jar /usr/app/

WORKDIR /usr/app

RUN sh -c 'touch demo-docker-0.0.1-SNAPSHOT.jar'

ENTRYPOINT ["java","-jar","demo-docker-0.0.1-SNAPSHOT.jar"]

FROM openjdk:8-jdk-alpine
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-jar","/app.jar"]