Not Able To Add New Nodes to PMK Cluster

Problem

• New worker nodes are failing to provision for a cluster.
• The below logs could be seen in the UI for the respective node.

[2022-06-23 11:39:20] I0623 11:39:20.395949 1226816 helpers.go:234] Connection error: Get https://10.128.143.0:443/api?timeout=32s: dial tcp <API-VIP>:443: connect: connection refused

[2022-06-23 11:39:20] F0623 11:39:20.396015 1226816 helpers.go:115] The connection to the server <API-IP>:443 was refused - did you specify the right host or port?

Environment

• Platform9 Managed Kubernetes - All versions.

Cause

• In-house networking issues can cause the worker nodes to fail while connecting to the API endpoint in order to perform the bootstrap operation.

Resolution

• The respective worker nodes should be able to reach the API endpoint on port 443.