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Uptime-kuma & Docker: Timeouts when monitoring services on same host (self.selfhosted)

submitted 1 year ago by outcide to c/selfhosted

9 comments fedilink hide all child comments

Hello.

Pretty sure I'm doing something stupid, but I can't find it.

I have Caddy and Uptime-kuma installed as Docker containers. They are on the same Docker bridge network. Both work fine (with the below exception).

I'm trying to monitor Caddy virtual hosts from Uptime-kuma and getting a timeout.

If I exec into the Uptime-kuma container, I can ping the host name I want to monitor (and the DNS is resolving correctly to the Docker hosts external IP).

But I can't reach port 80/443 using telnet or openssl.

Any suggestions for what I might be doing wrong?

Thanks!

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[–] outcide 2 points 1 year ago (1 children)

Thanks. In this case I'm trying to monitor Caddy itself (sites that are just html files that it hosts rather than redirect to other containers). I could point the monitor at caddy:443 but then I'd need to find someway to specify the HOST: for the virtualhosting to work?

[–] [email protected] 2 points 1 year ago (1 children)

Oh I see, I definitely misunderstood what you were asking. How is your caddy server set up? Is it serving one site per subdomain (site.your.domain) or is it one site per path (your.domain/site/)? I am running traefik so I probably won't be able to help with specifics, but it's worth a shot.

[–] outcide 2 points 1 year ago

Caddy is server subdomains and standalone domains, doesn't seem to make a difference which is which .. neither work. For the moment I'm monitoring them from another server but that's annoying ... which I could figure out what I'm doing wrong!