Kubeconfig - файл, содержащий перечень доступных кластеров, учетных данных и их комбинаций. Kubeconfig не применяется командой kubectl как другие yaml файлы, а просто кладётся в директорию пользователя с указанием пути к файлу в kubectl.

kubeconfig.yaml

apiVersion: v1
kind: Config

clusters:
- name: production
  cluster:
    certificate-authority: /etc/kubernetes/pki/ca.crt
    server: https://controlplane:6443

- name: development
  cluster:
    certificate-authority: /etc/kubernetes/pki/ca.crt
    server: https://controlplane:6443

- name: kubernetes-on-aws
  cluster:
    certificate-authority: /etc/kubernetes/pki/ca.crt
    server: https://controlplane:6443

- name: test-cluster-1
  cluster:
    certificate-authority: /etc/kubernetes/pki/ca.crt
    server: https://controlplane:6443

contexts:
- name: test-user@development
  context:
    cluster: development
    user: test-user

- name: aws-user@kubernetes-on-aws
  context:
    cluster: kubernetes-on-aws
    user: aws-user

- name: test-user@production
  context:
    cluster: production
    user: test-user

- name: research
  context:
    cluster: test-cluster-1
    user: dev-user

users:
- name: test-user
  user:
    client-certificate: /etc/kubernetes/pki/users/test-user/test-user.crt
    client-key: /etc/kubernetes/pki/users/test-user/test-user.key
- name: dev-user
  user:
    client-certificate: /etc/kubernetes/pki/users/dev-user/developer-user.crt
    client-key: /etc/kubernetes/pki/users/dev-user/dev-user.key
- name: aws-user
  user:
    client-certificate: /etc/kubernetes/pki/users/aws-user/aws-user.crt
    client-key: /etc/kubernetes/pki/users/aws-user/aws-user.key

current-context: test-user@development
preferences: {}

kubectl config current-config

kubectl config --kubeconfig=/root/my-kube-config user-context context-name

kubectl COMMAND --kubeconfig=/root/my-kube-config

• заменить файл ~/.kube/config
• установить путь в переменной $KUBECONFIG