chore: Add usage metric (#40)

* chore: Add usage metric

* Use correct value

Author: gonzalezzfelipe

operator/src/metrics.rs

@@ -1,5 +1,5 @@
 use chrono::Utc;
-use kube::{api::ListParams, Api, Client, Resource, ResourceExt};
+use kube::{api::ListParams, core::object::HasSpec, Api, Client, Resource, ResourceExt};
 use prometheus::{opts, IntCounterVec, Registry};
 use serde::{Deserialize, Deserializer};
 use std::sync::Arc;
@@ -14,6 +14,7 @@ pub struct Metrics {
     pub reconcile_failures: IntCounterVec,
     pub metrics_failures: IntCounterVec,
     pub dcu: IntCounterVec,
+    pub usage: IntCounterVec,
 }
 
 impl Default for Metrics {
@@ -60,12 +61,19 @@ impl Default for Metrics {
         )
         .unwrap();
 
+        let usage = IntCounterVec::new(
+            opts!("usage", "Feature usage",),
+            &["feature", "project", "resource_name", "tier"],
+        )
+        .unwrap();
+
         Metrics {
             users_created,
             users_dropped,
             reconcile_failures,
             metrics_failures,
             dcu,
+            usage,
         }
     }
 }
@@ -76,6 +84,7 @@ impl Metrics {
         registry.register(Box::new(self.users_created.clone()))?;
         registry.register(Box::new(self.users_dropped.clone()))?;
         registry.register(Box::new(self.dcu.clone()))?;
+        registry.register(Box::new(self.usage.clone()))?;
         Ok(self)
     }
 
@@ -105,18 +114,26 @@ impl Metrics {
             .inc();
     }
 
-    pub fn count_dcu_consumed(&self, namespace: &str, network: &str, dcu: f64) {
-        let project = get_project_id(namespace);
+    pub fn count_dcu_consumed(&self, project: &str, network: &str, dcu: f64) {
         let service = format!("{}-{}", DbSyncPort::kind(&()), network);
         let service_type = format!("{}.{}", DbSyncPort::plural(&()), DbSyncPort::group(&()));
         let tenancy = "proxy";
 
         let dcu: u64 = dcu.ceil() as u64;
 
         self.dcu
-            .with_label_values(&[&project, &service, &service_type, tenancy])
+            .with_label_values(&[project, &service, &service_type, tenancy])
             .inc_by(dcu);
     }
+
+    pub fn count_usage(&self, project: &str, resource_name: &str, tier: &str, value: f64) {
+        let feature = &DbSyncPort::kind(&());
+        let value: u64 = value.ceil() as u64;
+
+        self.usage
+            .with_label_values(&[feature, project, resource_name, tier])
+            .inc_by(value);
+    }
 }
 
 fn get_project_id(namespace: &str) -> String {
@@ -196,9 +213,21 @@ pub async fn run_metrics_collector(state: Arc<State>) {
                 let total_exec_time = result.value * (interval as f64);
 
                 let dcu = total_exec_time * dcu_per_second;
+
+                let project = get_project_id(&crd.namespace().unwrap());
+
                 state
                     .metrics
-                    .count_dcu_consumed(&crd.namespace().unwrap(), &crd.spec.network, dcu);
+                    .count_dcu_consumed(&project, &crd.spec.network, dcu);
+                state.metrics.count_usage(
+                    &project,
+                    &crd.name_any(),
+                    &crd.spec()
+                        .throughput_tier
+                        .clone()
+                        .unwrap_or("0".to_string()),
+                    total_exec_time,
+                );
             }
         }
     });