Caddy and support for Datadog or statsd

[francislavoie]

@miohtama

I am now trying to figure out how to pull 5xx reply count out from Caddy metrics.

I think this might do it, but I am not sure:

curl http://127.0.0.1:6000/metrics|grep -i caddy_http_request_duration_seconds_count

Yeah, that looks fine to me. Dashboard seems to be basically what you were looking for I guess

@miohtama

Would there be any way to have a human-readable label for these? I think I should be able to set srv1 to something meaningful, but I have do not know how.

The server label here is the name of the “server” in the JSON config which is generated from the Caddyfile.

Basically a “server” is the port that Caddy listens on, so all “sites” (domains/hostnames) will share the same server if they’re all served on port 443 (for HTTPS).

There’s no way to change the label in the Caddyfile, and there isn’t really any benefit to do so, really. The primary utility for changing it would be if you were using JSON config directly and the config API to manipulate Caddy’s config at runtime, cause then you could name the server something consistent for your API calls to use.

You can run caddy adapt --pretty --config /path/to/Caddyfile to see what the JSON config looks like, including seeing the server labels generated.