Cilium's Hubble not very useful now that we prevent DNS exfiltration

[craigwalton-dsit]

I think this is an issue since #56 - if an agent makes a network request to a blocked domain (say google.com), we don't see the blocked domain in Hubble anymore, because it was the request to kube-dns which was blocked, not a request to google.com.

This makes curating allowDomain lists harder.

[craigwalton-dsit]

Tom raised a good question - is the domain shown in the list of requests at the bottom of the screen?

Can't remember.