feat: Add plugins for kubectl node-shell

[younsl]

Description

Hi.

DevOps Engineers or SREs mainly use the kubectl node-shell plugin when connecting to the inside of a worker node (for on-call response or operational tasks, etc.). Add plugins to make it easier to use the node-shell plugin in k9s.

Changes Made

• Add node-shell plugins to use kubectl node-shell <NODE> in k9s directly.

Screenshot

Successfully tested in k9s 0.32.5 with minikube cluster:

[derailed]

@younsl FYI This feature is available natively in K9s when the nodeShell feature gate is enabled.

[younsl]

@derailed Oh, Thank you for letting me know about the native support! I wasn’t aware that K9s supports nodeShell through the featureGates configuration. Instead of adding an external plugin, I’ll update the K9s configuration file to enable nodeShell directly. Appreciate the guidance!

# $XDG_HOME/k9s/config.yaml
k9s:
  # Feature gates toggle k9s features
  featureGates:
    # Enable/Disable nodeShell
    nodeShell: true

[younsl]

After testing, I found that, as mentioned in issue #1001, K9s featureGates.nodeShell setting unfortunately does not support global settings. It seems there’s still a need for a plugin-based nodeShell. What are your thoughts on this?

I enabled nodeShell globally in the config.yaml file as shown below:

# $XDG_HOME/k9s/config.yaml
k9s:
  featureGates:
    nodeShell: true

However, the shell menu (s shortcut) does not appear in the node view in K9s. Is there a way to enable the nodeShell feature globally without relying on plugins?

[derailed]

@younsl The feature gate option is only available at the context/cluster config level. However, you can override this option globally by setting K9S_FEATURE_GATE_NODE_SHELL=true env var.

[younsl]

Hi @derailed,

Thank you for your kind explanation! I added K9S_FEATURE_GATE_NODE_SHELL=true to my environment variables using the following command:

echo 'export K9S_FEATURE_GATE_NODE_SHELL=true' | tee -a ~/.zshrc

Now, the k9s.featureGates.nodeShell setting in $XDG_HOME/k9s/config.yaml is no longer needed, as it applies globally and was tested with k9s version 0.32.5.

With these changes, I confirmed that the node shell feature in k9s works correctly without any specific plugin settings.

I really appreciate your help!

[derailed]

@younsl Nice!! Thank you for reporting back!