To install the latest unstable version of k8comp pull the latest version from github using below command. For the latest stable version check the releases from github

curl -o /usr/local/bin/k8comp https://raw.githubusercontent.com/cststack/k8comp/master/bin/k8comp
chmod +x /usr/local/bin/k8comp

Docker

There is an official k8comp container which can be used for local testing and Jenkins CI.
The container is based on the official jenkins ssh slave. The repository can be found here.

Check Quick start for more details