[Unit]
Description=Apache ZooKeeper
After=network.target
ConditionPathExists=/etc/zookeeper/zoo.cfg
ConditionPathExists=/etc/zookeeper/log4j.properties
ConditionPathExists=/var/lib/zookeeper/data/myid

[Service]
Type=simple
User=zookeeper
SyslogIdentifier=zookeeper
WorkingDirectory=/var/lib/zookeeper
UMask=0027
Environment="CP=/etc/zookeeper:/usr/share/java/slf4j/slf4j-log4j12.jar:/usr/share/java/slf4j/slf4j-api.jar:/usr/share/java/netty.jar:/usr/share/java/log4j.jar:/usr/share/java/jline.jar:/usr/share/java/zookeeper/zookeeper.jar"
Environment="IPv6=-Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true"
#Environment="JMX=-Dcom.sun.management.jmxremote"
ExecStart=/usr/lib/jvm/jre-1.7.0/bin/java -cp $CP $JMX $IPv6 org.apache.zookeeper.server.quorum.QuorumPeerMain /etc/zookeeper/zoo.cfg

[Install]
WantedBy=multi-user.target