[SEBA-649] Exposing configuration for kafka_bootstrap_servers in the base-kubernetes chart

Change-Id: I583c7e2643c2a561d7c4c412838e65e734417817
diff --git a/xos-services/kubernetes/templates/_helpers.tpl b/xos-services/kubernetes/templates/_helpers.tpl
index 98ee611..7bd490c 100644
--- a/xos-services/kubernetes/templates/_helpers.tpl
+++ b/xos-services/kubernetes/templates/_helpers.tpl
@@ -44,6 +44,7 @@
 
 {{- define "kubernetes.serviceConfig" -}}
 name: kubernetes
+kafka_bootstrap_servers: [{{ .Values.kafkaService | quote }}]
 accessor:
   username: {{ .Values.xosAdminUser | quote }}
   password: {{ .Values.xosAdminPassword | quote }}