Healthcheck monitor to internal HAProxy servers (inbound traffic)

[user290920]

We have OPNsense sitting between our internal network and the Internet. Once allowed through OPNsense, inbound web requests coming in from the Internet to our web servers are proxied by 2x HAProxy servers. Is there a way to get OPNsense to perform regular "Healthcheck" monitors to the HAProxy servers to ensure that the servers are healthy, and prepared to serve requests? Ideally OPNsense should perform regular HTTP requests, and close the path to the faulting HAProxy server (e.g. http://ip.to.haproxy.server/I/am/healthy). But, at this point, I'll settle for a simple PING test.

Forgive me if this is obvious, but I haven't found anything after 2HRs of searching...

[viragomann]

You can install the HAproxy package, which can do, what you want.

If running additional HAproxies behind makes sense, is another good question then.

[user290920]

I explored that option, but decided not to go that route. Didn't like the idea of multiple HAProxy server (potentially running at different versions). And, trying to keep my OPNsense server as "clean" as possible, with only the core services running on it.

Anyone else, please?

[viragomann]

Didn't like the idea of multiple HAProxy server (potentially running at different versions).

You can configure it as very basic TCP load balancer, which might do, what you want to get according to your upper post.
Don't think, that there is any other option providing the desired features.

[cookiemonster]

Indeed to my knowledge there is no facility/utility/ to act as a health checker and load balancer like F5s