Promote remaining host when delete one

  • Related issues: #2191 [BUG] Promote fail, cluster stays in Provisioning phase

Category:

  • Host

Verification Steps

  1. Create a 4-node Harvester cluster.
  2. Wait for three nodes to become control plane nodes (role is control-plane,etcd,master).
  3. Delete one of the control plane nodes.
  4. The remaining worker node should be promoted to a control plane node (role is control-plane,etcd,master).

Expected Results

  1. Four nodes Harvester cluster status, before delete one of the control-plane node

    n1-221021:/etc # kubectl get nodes
NAME        STATUS   ROLES                       AGE     VERSION
n1-221021   Ready    control-plane,etcd,master   17h     v1.24.7+rke2r1
n2-221021   Ready    control-plane,etcd,master   16h     v1.24.7+rke2r1
n3-221021   Ready    control-plane,etcd,master   15h     v1.24.7+rke2r1
n4-221021   Ready    <none>                      4m10s   v1.24.7+rke2r1

  2. Delete the third control-plane node, the 4th node can be promoted to control-plane role

    n1-221021:/etc # kubectl get nodes
NAME        STATUS   ROLES                       AGE   VERSION
n1-221021   Ready    control-plane,etcd,master   17h   v1.24.7+rke2r1
n2-221021   Ready    control-plane,etcd,master   16h   v1.24.7+rke2r1
n4-221021   Ready    control-plane,etcd,master   11m   v1.24.7+rke2r1

    image

    n1-221021:/etc # kubectl get machines -A
NAMESPACE     NAME                  CLUSTER   NODENAME    PROVIDERID         PHASE     AGE   VERSION
fleet-local   custom-00c844d92e49   local     n4-221021   rke2://n4-221021   Running   12m   
fleet-local   custom-580f66b2735d   local     n2-221021   rke2://n2-221021   Running   16h   
fleet-local   custom-6c0eaa9d5d67   local     n1-221021   rke2://n1-221021   Running   17h