Meaning of a Single head node

sujal2308

Hello All, Good Afternoon, I want to know the meaning of Single head node which is mentioned as single node etcd instance running on the head node with the API, the scheduler, and the controller-manager. So is it line on instance for etcd and another instance for API Server, kube-scheduler and controller-manager ? Is it like two instances for Control Plane node ?

Please let me know.

chrispokorni

Hi @sujal2308,

Perhaps the following page from the documentation can clarify the etcd deployment topologies:

https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/ha-topology/

Regards,
-Chris

rolfedh

Good question, @sujal2308! From the search results I've seen, it sounds like "head node" is another name for "control plane" or "master node" (deprecated term).

sujal2308

Thanks all.