Error: unknown command "oidc-login" for "kubectl" (DEBIAN)

[berndschatz]

Describe the issue

Login with kubelogin plugin works not.
kubelogin was installed with

1. sudo` snap install kubelogin
2. kubelogin_linux_amd64.zip

kubectl was installed with debian package manager

To reproduce

A console log or steps to reproduce the issue.

Option 1)

$ sudo snap install kubelogin
kubelogin v0.0.27 from Miguel Alvarado (exodus) installed
$ kubectl get nodes
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Unable to connect to the server: getting credentials: exec: executable kubectl failed with exit code 1

Option 2)

$ ls -l /usr/local/bin/kubectl-oidc-login 
lrwxrwxrwx 1 root root 30 Feb 28 13:34 /usr/local/bin/kubectl-oidc-login -> /usr/local/kubelogin/kubelogin
$ kubectl plugin list
The following compatible plugins are available:

/usr/local/bin/kubectl-oidc-login

$ kubectl get nodes
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Error: unknown command "oidc-login" for "kubectl"
Run 'kubectl --help' for usage.
Unable to connect to the server: getting credentials: exec: executable kubectl failed with exit code 1

Your environment

• OS: $ Debian 11 (bullseye)
• kubelogin version: (snap -> v0.0.27 and with gz -> V1.26.0)
• kubectl version: e.g. v1.20.5
• OpenID Connect provider: Keycloak

[berndschatz]

Solution -->

$ ls -l /usr/local/bin/kubectl-oidc_login 
lrwxrwxrwx 1 root root 30 Feb 28 13:59 /usr/local/bin/kubectl-oidc_login -> /usr/local/kubelogin/kubelogin

Strange: if you change in the kube config the default "oidc-login",
the error message changes accordingly , but it seems not to be used for the real call, only for the error message !?