About:

Forked from https://github.com/digital-wonderland/docker-zookeeper to bump to 3.4.12

Docker image based on openjdk:8-jre-alpine

Additional Software:

Apache ZooKeeper

Usage:

General Configuration:

ZooKeeper can be configured via environment variables:

Environment Variable	Zookeeper Property	Default
`ZOOKEEPER_ID`	N/A	`1`
`ZOOKEEPER_TICK_TIME`	`tickTime`	`2000`
`ZOOKEEPER_INIT_LIMIT`	`initLimit`	`10`
`ZOOKEEPER_SYNC_LIMIT`	`syncLimit`	`5`
`ZOOKEEPER_CLIENT_CNXNS`	`maxClientCnxns`	`60`
`ZOOKEEPER_AUTOPURGE_SNAP_RETAIN_COUNT`	`autopurge.snapRetainCount`	`3`
`ZOOKEEPER_AUTOPURGE_PURGE_INTERVAL`	`autopurge.purgeInterval`	`0`

Standalone Mode:

If you are happy with the defaults, simply run the container:

$ docker run -d -p 2181:2181 -p 2888:2888 -p 3888:3888 digitalwonderland/zookeeper

Clustered Mode:

To run a cluster, just add more ZOOKEEPER_SERVER_X environment variables (replace X with the respective id) set to the respective ip address.

For example to run a cluster on 172.17.8.101, 172.17.8.102 and 172.17.8.103, run the following on the respective hosts:

On 172.17.8.101:

$ docker run -d -p 2181:2181 -p 2888:2888 -p 3888:3888 -e ZOOKEEPER_ID=1 -e ZOOKEEPER_SERVER_1=172.17.8.101 -e ZOOKEEPER_SERVER_2=172.17.8.102 -e ZOOKEEPER_SERVER_3=172.17.8.103 digitalwonderland/zookeeper

On 172.17.8.102:

$ docker run -d -p 2181:2181 -p 2888:2888 -p 3888:3888 -e ZOOKEEPER_ID=2 -e ZOOKEEPER_SERVER_1=172.17.8.101 -e ZOOKEEPER_SERVER_2=172.17.8.102 -e ZOOKEEPER_SERVER_3=172.17.8.103 digitalwonderland/zookeeper

On 172.17.8.103:

$ docker run -d -p 2181:2181 -p 2888:2888 -p 3888:3888 -e ZOOKEEPER_ID=3 -e ZOOKEEPER_SERVER_1=172.17.8.101 -e ZOOKEEPER_SERVER_2=172.17.8.102 -e ZOOKEEPER_SERVER_3=172.17.8.103 digitalwonderland/zookeeper