BIND DNS Server for Kubernetes
A bind server that is configured using a configmap in Kubernetes.
It is intended for ingresses where you don't want to enter the DNS configuration elsewhere.
Mostly used for demos and tests (i.e. *.demo.mydomain.com).
Upstream DNS setup (i.e. in the DNS configuration for mydomain.com):
NS mysubdomain 3600 IN NS your.kubernetes.node.ip.address.