Add affinity to tomcat

bitnami/tomcat/values.yaml

@@ -152,3 +152,8 @@ ingress:
   - hosts:
       - tomcat.local
     secretName: tomcat.local-tls
+
+## Affinity for pod assignment
+## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity
+##
+affinity: {}