CaaS k8s cluster connectivity lost

Products

• VMware Telco Cloud Automation

Issue/Introduction

The kubernetes management cluster stopped responding.

VIP IP is unreachable and in vcenter server all management cluster nodes lost it's own IP. 

 

Environment

2.3, 3.x

Cause

This is due to the missing DHCP segment in the NSX. This is networking issue.

Resolution

On resolving the  network/dhcp segment issue and rebooting all nodes , the Caas Cluster connectivity will be back. VIP will also come up and cluster will be healthy.