Support a custom kube config location in K8sJobHelper

[pahask8]

What happened:

Currently there is no way to pass a custom Kube config file location. Based on

pipelines/sdk/python/kfp/containers/_k8s_job_helper.py

Line 29 in 675b1cd

def _configure_k8s(self):

, there are 2 ways of authorizing in k8s:

1. In cluster config
   config.load_incluster_config()
2. Default k8s config location (~/.kube/config):
   config.load_kube_config()

What did you expect to happen:
My use case: I use Jenkins in k8s to build a kf docker images which leaves in a separate k8s cluster. That means, that I can build a docker images using KF only in the same cluster because it will try to use in cluster config. I expect to pass a custom kube config file location and use it.

What steps did you take:
My use case: I use Jenkins in k8s to build a kf docker images which leaves in a separate k8s cluster. That means, that I can build a docker images using KF only in the same cluster because it will try to use in cluster config. I expect to pass a custom kube config file location and use it.

Anything else you would like to add:
Wil create a pull request.

[pahask8]

Pull request #2683

[gaoning777]

/unassign @gaoning777
/assign @Ark-kun
Hi, Alexey, could you help update the SDK?

[Ark-kun]

Fixed by #2682