I like to share in hoping to have helped the small minority that couldn’t get kubelogin setup properly with the struggles that I have been having.

My desktop environment

• WSL on Windows 10
• Ubuntu 20.04

Here’s my error

~/linux-scripts $ kubelogin convert-kubeconfig
error: unknown command “convert-kubeconfig” for “kubelogin”

I should have paid attention that the kubelogin I downloaded didn’t have the subcommand convert-kubeconfig. The following help doc shows that the convert-kubeconfig is missing.

What lead me to this version of kubelogin was encountering the following instructions from some blog/article.

VERSION=$(curl --silent "https://api.github.com/repos/int128/kubelogin/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
curl -LO "https://github.com/int128/kubelogin/releases/download/$VERSION/kubelogin_linux_amd64.zip"
unzip kubelogin_linux_amd64.zip
chmod +x kubelogin
export PATH=$PATH:"/usr/local/bin"

The authoritative source for kubelogin is https://azure.github.io/kubelogin/install.html, but I’ll give the easy concise steps for WSL Ubuntu 20.04.

First ensure you have installed the latest of azure cli and kubectl.

In order to install kubelogin, I find that you have to git clone asdf and run the asdf bash script. There is no package manager that I am aware of to install this.

$ git clone https://github.com/asdf-vm/asdf.git ~/.asdf --branch v0.14.0

Test the cmd

$ asdf 

Now run initialize the plugin repository

$ asdf plugin add kubelogin

$ asdf global kubelogin latest
$ kubelogin

You can see the convert-kubeconfig subcommand is supported

Since I had previously ran az login –use-device-code, I run the following command to login with the azure cli credential

$ kubelogin convert-kubeconfig -l azurecli

Now I am authenticated to run kubectl commands inspect workloads.

Voila!