feat: add prometheus monitor

src/lib.rs

@@ -3,6 +3,7 @@ use nanobyte_tera::{hosts::static_filter, l18n::translate_filter, date::{calcula
 use ovlach_tera::entity::lang_entity;
 use rocket::{*, fairing::{AdHoc, Fairing}};
 use rocket_dyn_templates::Template;
+use rocket_prometheus::PrometheusMetrics;
 use ::serde::{Deserialize, Serialize};
 use tools::tera::advanced_filter;
 
@@ -58,6 +59,8 @@ pub fn rocket_builder() -> Rocket<Build> {
       // extract the entire config any `Deserialize` value
     //let config: PresentationConfig = figment.extract().expect("config");
 
+    let prometheus = PrometheusMetrics::new();
+
     rocket.attach(
         template_fairing()
     ).attach(
@@ -70,8 +73,12 @@ pub fn rocket_builder() -> Rocket<Build> {
         AdHoc::config::<FrontendSVCConfig>()
     ).attach(
         nanobyte_opentelemetry::rocket::TracingFairing::ignite()
-    ).mount("/", routes![
+    ).attach(
+        prometheus.clone()
+    )
+    .mount("/", routes![
         routes::root::index,
         routes::root::index_without_lang
     ])
+    .mount("/metrics", prometheus)
 }