如何让elasticsearch在Ubuntu Docker容器中工作

我有一个dockerfile与以下内容：

FROM ubuntu:14.04 # Install Java 8 ARG DEBIAN_FRONTEND=noninteractive RUN apt-get update -y && \ apt-get install -y software-properties-common && \ apt-add-repository ppa:webupd8team/java && \ apt-get update -y && \ apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886 && \ echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | /usr/bin/debconf-set-selections && \ apt-get install -y oracle-java8-installer && \ apt-get install -y oracle-java8-unlimited-jce-policy && \ apt-get clean && \ rm -rf /var/lib/apt/lists/* && \ rm -rf /var/cache/oracle-jdk8-installer ENV JAVA_HOME /usr/lib/jvm/java-8-oracle RUN java -version # Now install Elasticsearch RUN wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.4.0.tar.gz RUN tar -xvzf elasticsearch-5.4.0.tar.gz RUN elasticsearch-5.4.0/bin/elasticsearch EXPOSE 80 

在使用elasticsearch.tar.gz之前，我尝试过使用elasticsearch.deb，但不能使它工作，有没有关于如何获得弹性search工作的任何指示？

这是我的错误：

 uncaught exception in thread [main] org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root