I was running into:
Nameserver limits were exceeded, some nameservers have been omitted. I am experiencing this for my pods on two of my nodes. Three other nodes (their pods) don't have this issue.
The pods are configured with
ClusterFirst dnsPolicy, so they got the nameserver of the node they are scheduled on.
/run/systemd/resolve/resolv.conf containted:
nameserver 2a01:xxx:xxxx::add:1
nameserver 2a01:xxx:xxxx::add:2
nameserver 185.XX.XX.X
Too many DNS servers configured, the following entries may be ignored.
nameserver 185.XX.XX.X
I was able to remove the two IPv6 addresses via /etc/netplan/50-cloud-init.yaml as of course the default limit is 3 https://www.reddit.com/r/kubernetes/comments/7ruq0f/kubelet_nameserver_limits_were_exceeded/
What is the best way to solve this within Kubernetes?
This does not feel the best way to me: https://stackoverflow.com/a/70969023/1766764
My other nodes don't need this and diffing the node yaml files did not reveal any differences in this direction (no nameserver explicitly configured).
Ubuntu 20.4 and Rancher v1.19.6-rancher1-1 is used
