POST /apis/admissionregistration.k8s.io/v1beta1/mutatingwebhookconfigurations HTTP/1.1
Authorization: Bearer $TOKEN
Accept: application/json
Connection: close
Content-Type: application/json'
{
"kind": "MutatingWebhookConfiguration",
"apiVersion": "admissionregistration.k8s.io/v1beta1",
...
}