FROM maven:3.5.4-jdk-8-alpine as builder
WORKDIR /app
COPY pom.xml ./
RUN mvn dependency:go-offline
COPY src src
RUN mvn package

FROM openjdk:8-jre-alpine
RUN addgroup app && adduser app -D -G app
USER app
COPY --from=builder /app/target/*.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]