Add alerts and targets for prometheus LTS and relay

Closes-Bug: PROD-20724
Change-Id: I1f4839a4900a2d417d85a52ffef6e11e4bb2cac1
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index df2b7c3..e4d3cb4 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -5,3 +5,5 @@
         enabled: true
       grafana:
         enabled: true
+      telegraf:
+        enabled: true