[COMMON][CASSANDRA] Service mesh compatible deploy

In order to make cassandra behaving smoothly on service mesh, we must
make it listen to 127.0.0.1 but broadcasting the real IP address.
This patch does it.

Issue-ID: OOM-2252
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I2c494a987a7d2d72ddce84ac7fab15bcadbc8cf4
diff --git a/kubernetes/common/cassandra/templates/statefulset.yaml b/kubernetes/common/cassandra/templates/statefulset.yaml
index 471f88f..953c89d 100644
--- a/kubernetes/common/cassandra/templates/statefulset.yaml
+++ b/kubernetes/common/cassandra/templates/statefulset.yaml
@@ -100,6 +100,14 @@
             value: {{ default "GossipingPropertyFileSnitch" .Values.config.endpoint_snitch | quote }}
           - name: CASSANDRA_AUTHENTICATOR
             value: {{ default "PasswordAuthenticator" .Values.config.authenticator | quote }}
+          {{- if include "common.onServiceMesh" . }}
+          - name: CASSANDRA_LISTEN_ADDRESS
+            value: "127.0.0.1"
+          - name: CASSANDRA_BROADCAST_ADDRESS
+            valueFrom:
+              fieldRef:
+                fieldPath: status.podIP
+          {{- end }}
           - name: POD_IP
             valueFrom:
               fieldRef: