Zookeeper installation

Runs a Zookeeper node. Designed to work in a cluster. Compatible with Kubernetes.
When working with Kebernetes it will use its discovery api to find the IPs of the ensemble.

Github project: https://github.com/samsara/samsara

Dependencies

Zookeeper has no external dependencies

Ports exposed

Port	Description
2181	Zookeeper client port
2888	Zookeeper peers port
3888	Zookeeper leader election port
15000	Supervisor web console

Volumes used

• /logs for application logs.
• /data for zookeeper data (snapshot and db-logs).

Configurable options

• $ZK_SERVER_ID : REQUIRED
  A numerical ID of this Zookeeper node.
  You have to ensure that the same ID isn't used by any other node in the cluster.

• $ADV_IP:
  Is the IP address to advertise to the other nodes and clients.
  It defaults to the container IP but you can use this property
  to use the HOST ip instead.

• HOSTNAME: (default: zk${ZK_SERVER_ID})
  Hostname used while publishing metrics to Riemann.

When using with Kubernetes:

• $DISCOVERY_SELECTOR: (default: zookeeper)
  This is the selector used to discover the other node in the ensemble.

• $DISCOVERY_ENSEMBLE_MIN_SIZE: (default: 3)
  How many zookeeper nodes have to be present to start the ensemble.
  This is particularly important as the number of node in the cluster
  must be carefully managed.

Usage

docker run -d -p 2181:2181 -p 2888:2888 -p 3888:3888 -p 15000:15000 \
        -v /tmp/zookeeper/logs:/logs \
        -v /tmp/zookeeper/data:/data \
        -e ZK_SERVER_ID=1 \
        samsara/zookeeper

Versions

• Samsara-0.5.5.0, zk-3.4.6 - Zookeeper installation

Copyright & License

Copyright © 2015 Samsara's authors.

Distributed under the Apache License v 2.0 (http://www.apache.org/licenses/LICENSE-2.0)