[PORTAL] Make Portal use generic Cassandra image

Portal uses currently a customized, old Cassandra Image (cassandra_music:3.0.0)
 which doesn't support dual stack (IPv4 and IPv6).
Intention of this change is to replace this image with generic, bitnami image.

Issue-ID: PORTAL-1037
Signed-off-by: Grzegorz Lis <grzegorz.lis@nokia.com>
Change-Id: I6d76a09328adc20b408f1e22fd608cd44b074712
diff --git a/kubernetes/portal/components/portal-cassandra/values.yaml b/kubernetes/portal/components/portal-cassandra/values.yaml
index a0488e5..ec76d08 100644
--- a/kubernetes/portal/components/portal-cassandra/values.yaml
+++ b/kubernetes/portal/components/portal-cassandra/values.yaml
@@ -1,5 +1,6 @@
-# Copyright © 2017 Amdocs, Bell Canada
-# Modifications Copyright © 2018 AT&T
+# Copyright (c) 2017 Amdocs, Bell Canada
+# Modifications Copyright (c) 2018 AT&T
+# Modifications Copyright (c) 2020 Nokia
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -22,7 +23,7 @@
 
 
 # application image
-image: onap/music/cassandra_music:3.0.0
+image: bitnami/cassandra:3.11.9-debian-10-r30
 pullPolicy: Always
 
 #################################################################
@@ -56,10 +57,14 @@
   # necessary to disable liveness probe when setting breakpoints
   # in debugger so K8s doesn't restart unresponsive container
   enabled: true
+  successThreshold: 1
+  failureThreshold: 3
 
 readiness:
   initialDelaySeconds: 10
   periodSeconds: 10
+  successThreshold: 1
+  failureThreshold: 3
 
 ## Persist data to a persitent volume
 persistence: