alloy: set prometheus url as secret

services/monitoring/deploy/alloy/node-scraper/helm-values.yaml

@@ -221,7 +221,7 @@ alloy:
       prometheus.remote_write "metrics_service" {
 
         endpoint {
-          url = "https://prometheus.monitoring.limbosolutions.com/api/v1/write"
+          url = env("PROMETHEUS_URL")
         }
 
       }
@@ -250,3 +250,8 @@ alloy:
         secretKeyRef:
           name: alloy-global
           key: loki_url
+    - name: PROMETHEUS_URL
+      valueFrom:
+        secretKeyRef:
+          name: alloy-global
+          key: prometheus_url