Docker Zookeeper

You can find the official Zookeeper docker image here:

• Official Zookeeper Docker Image

Run a zookeeper server like this:

docker run --name server1 --restart always -d zookeeper

Connect from another containerized application:

docker run --name my-application --link server1:zookeeper -d my-application

Connect from the CLI client. This runs another zookeeper instance in a container but runs the cli in the foreground which is good for testing.

docker run -it --rm --link server1:zookeeper zookeeper zkCli.sh -server zookeeper

Configuration

Create a custom config here:

vi zoo.cfg

Mount the config file as a volume:

docker run --name server1 --restart always -d -v $(pwd)/zoo.cfg:/conf/zoo.cfg zookeeper

You could also just mount the config dir as a volume:

docker run --name server1 --restart always -d -v $(pwd)/conf:/conf zookeeper

You can also use environment variables instead of relying on the config file. I personally prefer to just use the config file.