What is the Maximum Nameservers on a PMK Node?

Problem

What is the maximum number of nameservers for a PMK Node?

Environment

Platform9 Managed Kubernetes - All Versions

Answer

Max nameservers for a PMK node is three, as implemented by upstream Kubernetes. If more than three nameservers are defined, only the first three will be utilized by Kubernetes. Nameservers are defined in /etc/resolv.conf.

If max nameservers is exceeded, kubectl get events -n kube-system will display warnings similar to the example below:

Example
Copy
Type to search, ESC to discard
Type to search, ESC to discard
Type to search, ESC to discard