Is there a ready-made light analogue of jenkins for server monitoring?

Question

System administration

I would just like to have a list of scripts in bash / ruby ​​/ js and the like that run on a schedule, check something and send notifications if something didn’t work out right. For example
- a request for a domain returns 200
- such and such a process is running
- at least one notification has been sent in the last 10 minutes
, etc. a couple of line scripts.
Yes, this is implemented, for example, on systemd. But without a beautiful interface and a non-system administrator can no longer use it.
jenkins has a great new interface that is pleasing to the eye and does what it needs to do, but it's bold... you can't put it on a small vps.

Answer 1

Zabbix is ​​not sure about lightness, but it's free)))

Answer 2

monit
light is nowhere to go