enable metrics

cluster/argocd/values.yaml

@@ -112,3 +112,28 @@ dex:
 # Disable default admin user
 admin:
   enabled: false
+
+# Enable Prometheus metrics for ArgoCD
+controller:
+  metrics:
+    enabled: true
+    serviceMonitor:
+      enabled: true
+
+server:
+  metrics:
+    enabled: true
+    serviceMonitor:
+      enabled: true
+
+repoServer:
+  metrics:
+    enabled: true
+    serviceMonitor:
+      enabled: true
+
+applicationSet:
+  metrics:
+    enabled: true
+    serviceMonitor:
+      enabled: true