Not able to access kubernetes api from inside a pod container

Question

I have created a hashicorp vault deployment and configured kubernetes auth. The vault container calls kubernetes api internally from the pod to do k8s authentication, and that c

Answer 1

Finally I have figured out what went wrong:

my payload.json content was wrong

it should be like this:

{
      "kubernetes_host": "https://kubernetes",
      "kubernetes_ca_cert": 
}

Now below endpoint is working fine and returning the desire client_token

curl --request POST --data @payload2.json http://127.0.0.1:8200/v1/auth/kubernetes/login

Thanks @John for helping me to figure out the initial issue with kubernetes_host.