[k8s] Runner's pod "env" contents is different between webUI and pod shows

For some reasons, I need to get into the runner’s pod and using “kubectl” command to check something.

But the command’s results is wired and different to what I’d expected.

As graph shown below, left sides shows from web-ui (CI/CD runner job) and right side shows from pod’s container. I’m confused that why KUBECONFIG env setting is missing in container…