System information

• TensorFlow version (use command below): 2.5.0

Describe the current behavior

Currently the KubernetesClusterResolver class can only load configs from kube-config file:

https://github.com/tensorflow/tensorflow/blob/v2.5.0/tensorflow/python/distribute/cluster_resolver/kubernetes_cluster_resolver.py#L97

Describe the expected behavior

When running in worker pods in cluster, we want to be able to load configs using .load_incluster_config() (example)

We can't use the override_client arg with kubernetes package either, because once installed the ImportError does not happen

Contributing

• Do you want to contribute a PR? (yes/no):

  Yes

• Briefly describe your candidate solution(if contributing):

  Try to do k8sconfig.load_incluster_config() first, if failed then do k8sconfig.load_kube_config()