failed to get register command, err: no CA certificates found in kubeconfig

[chaosi-zju]

What happened:

Execute karmadactl token create command failed (Karmada is installed by local up script), you can see:

$ karmadactl token create --print-register-command --kubeconfig ~/.kube/karmada.config --karmada-context karmada-apiserver
error: failed to get register command, err: no CA certificates found in kubeconfig

the cluster is set insecure-skip-tls-verify=true in karmada config, that is a insecure config:

$ cat ~/.kube/karmada.config
apiVersion: v1
clusters:
- cluster:
    insecure-skip-tls-verify: true
    server: https://172.18.0.4:5443
  name: karmada-apiserver
...

What you expected to happen:

$ karmadactl token create --print-register-command --kubeconfig ~/.kube/karmada.config --karmada-context karmada-apiserver                                                                                
karmadactl register 172.18.0.4:5443 --token yqnbkt.muyyaah5omv1s24d --discovery-token-ca-cert-hash sha256:4f12a0f772cdaecfb7e150992f627485485d75922ddae5080bcb50a79bf22971

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

Environment:

• Karmada version:
• kubectl-karmada or karmadactl version (the result of kubectl-karmada version or karmadactl version):
• Others: