[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=forking
User=zookeeper
SyslogIdentifier=zookeeper
WorkingDirectory=/var/lib/zookeeper
ExecStart=/usr/bin/zkServer.sh start zoo.cfg
ExecStop=/usr/bin/zkServer.sh stop

User=root
Group=root
# TODO: check updated permissions.
# Group=zookeeper
Restart=always
RestartSec=20

[Install]
WantedBy=multi-user.target