[PORTAL] Update chart with service account

Add service account to requirements, values and deployment/statefulset

Issue-ID: OOM-2874
Signed-off-by: farida azmy <farida.azmy.ext@orange.com>
Change-Id: I878ccfce7d7e02875376bc5941af43d3f10fcb2d
diff --git a/kubernetes/portal/components/portal-cassandra/values.yaml b/kubernetes/portal/components/portal-cassandra/values.yaml
index bed75e5..c3ffb4f 100644
--- a/kubernetes/portal/components/portal-cassandra/values.yaml
+++ b/kubernetes/portal/components/portal-cassandra/values.yaml
@@ -139,4 +139,10 @@
     max: 3G
     new: 100M
   large: {}
-  unlimited: {}
\ No newline at end of file
+  unlimited: {}
+
+#Pods Service Account
+serviceAccount:
+  nameOverride: portal-cassandra
+  roles:
+    - read