./bin/activator clean stage
./target/universal/stage/bin/app-server -J-Xms128M -J-Xmx512m -J-server -Dconfig.resource=application.conf

FROM ubuntu:latest

RUN mkdir home/app-server
ENV HOME=home/app-server

COPY . $HOME

WORKDIR $HOME

RUN ./bin/activator clean stage  #this is inside the $HOME directory

EXPOSE 5000
CMD ["./target/universal/stage/bin/app-server", "-J-Xms128M", "-J-Xmx512m", "-J-server", "-Dhttp.port=5000", "-Dconfig.resource=stage.conf"]

Getting com.typesafe.activator activator-launcher 1.3.12 ...
downloading https://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.activator/activator-launcher/1.3.12/jars/activator-launcher.jar ...
    [SUCCESSFUL ] com.typesafe.activator#activator-launcher;1.3.12!activator-launcher.jar (1460ms)
downloading https://repo1.maven.org/maven2/org/scala-lang/scala-library/2.11.8/scala-library-2.11.8.jar ...
    [SUCCESSFUL ] org.scala-lang#scala-library;2.11.8!scala-library.jar (310ms)

FROM ubuntu:16.04

ENV DEBIAN_FRONTEND noninteractive
ENV JAVA_HOME       /usr/lib/jvm/java-8-oracle
ENV LANG            en_US.UTF-8
ENV LC_ALL          en_US.UTF-8

RUN apt-get update &&
  apt-get install -y --no-install-recommends locales unzip &&
  locale-gen en_US.UTF-8 &&
  apt-get dist-upgrade -y &&
  apt-get --purge remove openjdk* &&
  echo "oracle-java8-installer shared/accepted-oracle-license-v1-1 select true" | debconf-set-selections &&
  echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu xenial main" > /etc/apt/sources.list.d/webupd8team-java-trusty.list &&
  apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886 &&
  apt-get update &&
  apt-get install -y --no-install-recommends oracle-java8-installer oracle-java8-set-default &&
  apt-get clean all

RUN apt-get install -y curl &&
    curl -OL https://github.com/google/protobuf/releases/download/v3.2.0/protoc-3.2.0-linux-x86_64.zip &&
    unzip protoc-3.2.0-linux-x86_64.zip -d protoc3 &&
    mv protoc3/bin/* /usr/local/bin/ &&
    mv protoc3/include/* /usr/local/include/

RUN wget http://downloads.typesafe.com/typesafe-activator/1.3.2/typesafe-activator-1.3.2-minimal.zip &&
    unzip typesafe-activator-1.3.2-minimal.zip &&
    mv activator-1.3.2-minimal /bin/activator