guys, do you really want 303nn nodeports - you reserved 302 on the wiki
https://wiki.onap.org/display/DW/OOM+NodePort+List
https://git.onap.org/oom/tree/kubernetes/uui/values.yaml#n61
but specifically overrode 303 on your chart
https://git.onap.org/oom/tree/kubernetes/uui/values.yaml#n19
uuiPortPrefix: 303

ubuntu@ip-172-31-25-157:~$ kubectl get services --all-namespaces | grep 303
onap uui NodePort 10.43.5.171 <none> 8080:30398/TCP 1h
onap uui-server NodePort 10.43.139.221 <none> 8082:30399/TCP 1h