FROM maven:3.6.1-jdk-11-slim as maven WORKDIR /jooby2 COPY pom.xml pom.xml COPY src src COPY public public RUN mvn package -q -P netty FROM openjdk:11.0.3-jre-slim WORKDIR /jooby2 COPY --from=maven /jooby2/target/jooby-2x.jar app.jar COPY conf conf CMD ["java", "-server", "-Xms512m", "-Xmx2g", "-jar", "app.jar"]