tree adcf16fa8d4fbb8231ec95a59f3ffd404a545350
parent cc2ff79f0119bec4297acede59d6d201b1dc308e
author Serge Bazanski <q3k@hackerspace.pl> 1612030772 +0100
committer Serge Bazanski <q3k@hackerspace.pl> 1612030775 +0100

cluster/admitomatic: implement basic dns/ns filtering

This is the beginning of a validating admission controller which we will
use to permit end-users access to manage Ingresses.

This first pass implements an ingressFilter, which is the main structure
through which allowed namespace/dns combinations will be allowed. The
interface is currently via a test, but in the future this will likely be
configured via a command line, or via a serialized protobuf config.

Change-Id: I22dbed633ea8d8e1fa02c2a1598f37f02ea1b309