[Bug]: K8s: hostname needs to be resolved by the pods

[wanyunSu]

Description

in k8s, the hostname is the podname. This needs to be remap to the machine.

Steps to reproduce

normal set up procedure

Version and environment

latest

Impact

Small/Isolated

Anything else?

No response

[wesketchum]

Should be fixed by #657, but still requires a test.