CoreDNS

Blog Entry on Custom DNS Entries with CoreDNS 2017, but still relevant Service Discover with CoreDNS on Kubernetes

Microk8s

microk8s uses dns as an addon, should be enabled by default

config can be changed in place with:

microk8s kubectl -n kube-system edit configmap/coredns

Testing with

kubectl run -it --rm --restart=Never --image=infoblox/dnstools:latest dnstools