samsara/zookeeper repository overview

⁠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

⁠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)