[Release-1.25] - Etcd restore does not work as expected while extra-args is passed to controller-manager and kube-scheduler

[galal-hussein]

Backport fix for Etcd restore does not work as expected while extra-args is passed to controller-manager and kube-scheduler

• Etcd restore does not work as expected while extra-args is passed to controller-manager and kube-scheduler #4930

[ShylajaDevadiga]

Validated on rke2 version v1.25.15-rc4+rke2r1 following the docs for backup-restore and using the config from the issue https://docs.rke2.io/backup_restore

Environment Details

Infrastructure
Cloud EC2 instance

Node(s) CPU architecture, OS, and Version:
Ubuntu 22.04

Cluster Config:
3 server nodes

Initial setup Nodes are are Ready state

$ kubectl get nodes 
NAME               STATUS   ROLES                       AGE     VERSION
ip-172-31-13-115   Ready    control-plane,etcd,master   5m38s   v1.25.15+rke2r1
ip-172-31-14-81    Ready    control-plane,etcd,master   2m16s   v1.25.15+rke2r1
ip-172-31-7-176    Ready    control-plane,etcd,master   2m7s    v1.25.15+rke2r1

Nodes are in NotReady after restoring on first nodes

$ kubectl get nodes
NAME               STATUS     ROLES                       AGE     VERSION
ip-172-31-13-115   Ready      control-plane,etcd,master   11m     v1.25.15+rke2r1
ip-172-31-14-81    NotReady   control-plane,etcd,master   7m49s   v1.25.15+rke2r1
ip-172-31-7-176    NotReady   control-plane,etcd,master   7m40s   v1.25.15+rke2r1

Nodes joined the cluster successfully within 2-3 min

$ kubectl get nodes
NAME               STATUS   ROLES                       AGE     VERSION
ip-172-31-13-115   Ready    control-plane,etcd,master   12m     v1.25.15+rke2r1
ip-172-31-14-81    Ready    control-plane,etcd,master   9m22s   v1.25.15+rke2r1
ip-172-31-7-176    Ready    control-plane,etcd,master   9m13s   v1.25.15+rke2r1