Update Dockerfile

Dockerfile

@@ -1,17 +1,19 @@
 FROM anapsix/alpine-java:8_jdk
 WORKDIR /tmp
 RUN wget http://archive.apache.org/dist/maven/maven-3/3.6.1/binaries/apache-maven-3.6.1-bin.tar.gz
-RUN tar -zxvf apache-maven-3.6.1-bin.tar.gz && rm apache-maven-3.6.1-bin.tar.gz && mv apache-maven-3.6.1 /usr/lib/mvn
+RUN tar -zxvf apache-maven-3.6.1-bin.tar.gz && rm apache-maven-3.6.1-bin.tar.gz 
+RUN mv apache-maven-3.6.1 /usr/lib/mvn
 RUN chown -R root:root /usr/lib/mvn
 RUN ln -s /usr/lib/mvn/bin/mvn /usr/bin/mvn
 RUN wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz
 RUN tar -zxvf zookeeper-3.4.6.tar.gz
-RUN mv zookeeper-3.4.6 zookeeper
+RUN mv zookeeper-3.4.6 /opt/zookeeper
+RUN rm -rf zookeeper-3.4.6.tar.gz
 RUN echo "export ZOOKEEPER_HOME=/opt/zookeeper" >>/etc/profile
 RUN echo "export PATH=$PATH:$ZOOKEEPER_HOME/bin"  >>/etc/profile
 ADD conf/zoo.cfg /opt/zookeeper/conf/zoo.cfg
 RUN source /etc/profile
-#RUN zkServer.sh start
+RUN zkServer.sh start
 RUN apk add --no-cache git npm nginx mariadb mariadb-client mariadb-server-utils pwgen
 WORKDIR /opt
 RUN git clone https://github.com/analysys/EasyScheduler.git