Can I use my own domain and its entities?

Configuration
1

I would like HA to manage the states of my monitoring system. This system check things, and then provides a status for each of these things, in addition to some extra information (time of last run, commit of the build, etc.)

Today I expose this information through a web site, part of the monitoring system.

I would like to change that using HA:

  • keep the state of the monitored things
  • display the monitoring status in a HA card

Can I just invent my own my own HA domain, so that I can have for instance monitoring.sensor_garage, monitoring.docker_service, etc., and set the state of these entities?

2

Through a custom integration or python script, yes.

3

… I think you can with the rest api too.

4

Thank you for the answer.

My monitoring system is independent of HA, I would need to create/delete/set these entities via the HA API - I do not need to declare the domain anywhere?

I will of course make some tests, i would just want to know whether the idea makes sense at all.

5

no, that’s done upon creation. You can make any domain. There’s no master list of domains that you need to add to.