CKS HA controller nodes not work property #7537
Description
ISSUE TYPE
- Improvement Request
COMPONENT NAME
Kubernetes
CLOUDSTACK VERSION
4.18.0.0
CONFIGURATION
- Hypervisor: KVM
- Advanced networking
OS / ENVIRONMENT
Ubuntu 22.04
SUMMARY
Create kubernetes cluster with 2 controller nodes.
When stop one of them, I can't access to the cluster.
STEPS TO REPRODUCE
Create new cluster with 2 controller node (with isolated network)
after the cluster turn to active status, stop one of two controller nodes
Testing: get node of the cluster (using kubectl)
EXPECTED RESULTS
Still can continue to access the cluster
ACTUAL RESULTS
Cannot access the cluster with result:
Error from server (Timeout): the server was unable to return a response in the time allotted, but may still be pr
ocessing the request (get nodes)
Unable to connect to the server: EOF
I also created a cluster with three controller nodes and upon attempting to stop two of them. I found that the result was consistent.
This means that the cluster can still be accessed with at least two controller nodes while HA enabled?!