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zookeeper

Zookeeper

Apache ZooKeeper is a software project of the Apache Software Foundation, providing an open source distributed configuration service, synchronization service, and naming registry for large distributed systems. ZooKeeper was a sub-project of Hadoop but is now a top-level project in its own right.

See zookeeper.apache.org for more information

This image is built by IBM to run on the IBM Z architecture and is not affiliated with any other community that provides a version of this image.


License

View license information here

As with all Docker images, these likely also contain other software which may be under other licenses (such as Bash, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).

As for any pre-built image usage, it is the image user's responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within.


Versions

Use the pull string below for the version of this image you require.
3.9.4 docker pull icr.io/ibmz/zookeeper@sha256:5ac1f40ea3434343b7c8b0c78b96e74ee82b1545be42c5bc295fc9068ec3005b Vulnerability Report01-15-2026
Version Pull String Security (IBM Cloud) Created

Usage Notes

Start a Zookeeper server instance:

docker run --name some-zookeeper --restart always -d icr.io/ibmz/zookeeper:[version]

This image includes EXPOSE 2181 2888 3888 8080 (the zookeeper client port, follower port, election port, AdminServer port respectively), so standard container linking will make it automatically available to the linked containers. Since the Zookeeper "fails fast" it's better to always restart it.

Connect to Zookeeper from an application in another Docker container:

docker run --name some-app --link some-zookeeper:icr.io/ibmz/zookeeper:[version] -d application-that-uses-zookeeper

Connect to Zookeeper from the Zookeeper command line client:

docker run -it --rm --link some-zookeeper:icr.io/ibmz/zookeeper:[version] zookeeper zkCli.sh -server zookeeper