In this chapter and in previous chapters, we explained how to use fleet to deploy our different services on our clusters. Fleet is a powerful and easy-to-use low-level cluster manager that controls
systemd at the cluster level. However, it lacks a web UI, easy orchestration tools, and so on, so this is where PAZ, the nice PaaS, steps in to help us out.
The website at http://www.paz.sh has a very nice and user-friendly web UI, which makes it much easier to set up a CoreOS cluster. PAZ also has an API that you can use if you want to automate things via scripts.
Through its dashboard, you can add and edit your services, check the status of the cluster (viewed by host or by unit), and view monitoring information ...