zoosync 2.0.1

Zookeeper service discovery

Zoosync

Zoosync is a simple service discovery tool using Zookeeper as database backend.

Usage

See zoosync –help for brief usage or manual page for more detailed usage.

The output is in the form of shell variable assignement, so tool could be used this way:

ZOO='zoo1.example.com,zoo2.example.com,zoo3.example.com'
REQ_SERVICES='impala,hadoop-hdfs,test,test2,test3'

zoosync --zookeeper ${ZOO} --services ${REQ_SERVICES} cleanup
eval `zoosync --zookeeper ${ZOO} --services ${REQ_SERVICES} --wait 1800 wait`

echo "active: ${SERVICES}"
echo "missing: ${MISSING}"

Deployment

# install

pip install zoosync

# configure

cat > /etc/zoosyncrc <<EOF
zookeeper=zoo1,zoo2,zoo3
user=user
password=changeit
services=service1,service2
EOF

# automatic startup

# 1) SystemV

cp scripts/zoosync.sh /etc/init.d/
#debian: update-rc.d zoosync defaults
#redhat: chkconfig zoosync on

# 2) SystemD

cp scripts/zoosync.service /etc/systemd/system/
systemctl enable zoosync