Apache Zookeeper is required to support a number of software packages. In order to use my homelab I run this locally in the foreground to allow me to check each component - I know that I could just as easily do this in k8s but I like to turn components on and off as required - which I know that I could do in k8s.
This procedure assumes a working install of Ubuntu 20.04 with Java installed.
To install and run Zookeeper execute the following commands:
wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.0/apache-zookeeper-3.8.0-bin.tar.gz tar xfvz apache-zookeeper-3.8.0-bin.tar.gz ln -s apache-zookeeper-3.8.0-bin zookeeper cd zookeeper cp conf/zoo_sample.cfg conf/zoo.cfg bin/zkServer.sh start-foreground
This should then start cleanly.