[VOL-2940] Scrape from kafka if metrics are exposed

Change-Id: I6e176b6f4ed4cbf14393273ad1e1375708f62caa
diff --git a/nem-monitoring/values.yaml b/nem-monitoring/values.yaml
index 70cd5a7..35d2575 100644
--- a/nem-monitoring/values.yaml
+++ b/nem-monitoring/values.yaml
@@ -58,6 +58,12 @@
       static_configs:
         - targets:
             - etcd:2379
+    - job_name: 'kafka-metrics'
+      metrics_path: /metrics
+      scrape_interval: 15s
+      static_configs:
+        - targets:
+            - kafka-exporter:9308
     - job_name: 'xos-core'
       metrics_path: /metrics
       scrape_interval: 15s