feat: add prometheus monitor

Cargo.lock

@@ -1372,9 +1372,9 @@ dependencies = [
 
 [[package]]
 name = "nanobyte_opentelemetry"
-version = "0.2.3"
+version = "0.2.4"
 source = "sparse+https://git.nanobyte.cz/api/packages/nanobyte/cargo/"
-checksum = "053fac4ff7f3cab0a088383bc68774e402c07c92d19478bcbb51d1d49a5d42bf"
+checksum = "263d89ff6cdfa99d9dd3fa701db590f6f9abdc5a1f7498baa02d511d05689571"
 dependencies = [
  "gethostname",
  "opentelemetry",
@@ -1700,6 +1700,7 @@ dependencies = [
  "reqwest",
  "rocket",
  "rocket_dyn_templates",
+ "rocket_prometheus",
  "serde",
  "serde_json",
  "serde_yaml",
@@ -1958,6 +1959,20 @@ dependencies = [
  "yansi 1.0.0-rc.1",
 ]
 
+[[package]]
+name = "prometheus"
+version = "0.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "449811d15fbdf5ceb5c1144416066429cf82316e2ec8ce0c1f6f8a02e7bbcf8c"
+dependencies = [
+ "cfg-if",
+ "fnv",
+ "lazy_static",
+ "memchr",
+ "parking_lot",
+ "thiserror",
+]
+
 [[package]]
 name = "prost"
 version = "0.11.9"
@@ -2282,6 +2297,16 @@ dependencies = [
  "uncased",
 ]
 
+[[package]]
+name = "rocket_prometheus"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18faabccdfcd08d4501768f5b6936f6332af10496f1ea8107eb48a7766e03439"
+dependencies = [
+ "prometheus",
+ "rocket",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.23"

Cargo.toml

@@ -14,8 +14,9 @@ rocket = { version = "0.5.0", features = ["json"] }
 rocket_dyn_templates = { version = "0.1.0", features = ["tera"]}
 reqwest = { version = "0.11", features = ["json"] }
 tokio = { version = "1", features = ["full"] }
+rocket_prometheus = "0.10.0"
 ovlach_data = { version = "0.1.3", registry = "gitea_ovlach"}
-nanobyte_opentelemetry = { version = "0.2.3", registry = "gitea_nanobyte", features = ["rocket-reqwest"] }
+nanobyte_opentelemetry = { version = "0.2.4", registry = "gitea_nanobyte", features = ["rocket-reqwest"] }
 chrono = "0.4.31"
 sha256 = "1.4.0"
 fluent-bundle = "0.15.2"

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)
 }