1. The problem I’m having:
I have Prometheus metrics configured for my Caddyfile, and they are working great. Unfortunately, Caddy does not seem to aggregate http_* metrics for anything, even though there are multiple requests per second coming in. All the go_* and process_* metrics are correct.
2. Error messages and/or full log output:
No specific errors.
3. Caddy version:
2.8.4
4. How I installed and ran Caddy:
Binaries.
a. System environment:
Debian 12.
b. Command:
No specific command.
c. Service/unit/compose file:
No specific service config.
d. My complete Caddy config:
{
auto_https off
}
:9200 {
metrics
}
http://mydomain.com {
root * /apps/web/public
encode gzip
php_fastcgi unix//var/run/php/php-fpm.sock {
index index.php
capture_stderr
}
}
5. Links to relevant resources:
Output of the metrics endpoint. Note the lack of http_* metrics:
caddy@web-prod01:/home/cloud# curl localhost:2019/metrics
# HELP caddy_admin_http_requests_total Counter of requests made to the Admin API's HTTP endpoints.
# TYPE caddy_admin_http_requests_total counter
caddy_admin_http_requests_total{code="200",handler="load",method="POST",path="/load"} 2
# HELP caddy_reverse_proxy_upstreams_healthy Health status of reverse proxy upstreams.
# TYPE caddy_reverse_proxy_upstreams_healthy gauge
caddy_reverse_proxy_upstreams_healthy{upstream="unix//var/run/php/php-fpm.sock"} 1
# HELP go_build_info Build information about the main Go module.
# TYPE go_build_info gauge
go_build_info{checksum="",path="caddy",version="(devel)"} 1
# HELP go_gc_duration_seconds A summary of the pause duration of garbage collection cycles.
# TYPE go_gc_duration_seconds summary
go_gc_duration_seconds{quantile="0"} 8.3176e-05
Ideally what I want is to be able to gather requests per second, as well as average time of every request.
