Multi-cluster kubeconfig consistancy

[pirankashani]

The Headlamp is fantastic. Thank you so much for creating that great tool.
I am using this how-to to install Headlamp in my cluster and mount kubeconfig files of other clusters accordingly. It works as expected unless I recycle the clusters or for anyreasons the kubeconfig file of these clusters changes.
My use case is to use the Headlamp as a multi-cluster GUI. The question is: if I update/recreate the kubeconfig file on the target clusters how I can automatically update the configs on the Headlamp side to keep connected to the clusters?

[dosubot[bot]]

For automatically updating kubeconfig files in Headlamp when changes occur, there is a relevant feature in Headlamp that might help. Headlamp includes a function called LoadAndWatchFiles in the backend/pkg/kubeconfig/watcher.go file. This function uses the fsnotify package to watch for changes in kubeconfig files and reloads them as necessary. It sets up a file watcher and periodically checks for changes such as file creation, modification, removal, or renaming, and reloads the kubeconfig files accordingly ^[1][2].

This functionality should help in keeping your kubeconfig files consistent across multiple clusters by automatically reloading them when changes are detected. Make sure that this feature is enabled and properly configured in your Headlamp setup.

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[pirankashani]

I think this function won't help because when a new kubeconfig is generated the previous one would be invalidated. Is there a value in the helm chart to set for the kubeconfig update/changes? or maybe another tool or plugin to use for it?

[dosubot[bot]]

I couldn't find any specific configuration option in the Headlamp Helm chart that allows for automatic updates or reloading of kubeconfig files when they are regenerated. Additionally, there are no existing plugins or extensions specifically for managing multiple kubeconfig files that are frequently updated. You might need to implement a custom solution or script to handle the regeneration and updating of kubeconfig files in your setup.

To continue talking to Dosu, mention @dosu.

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[joaquimrocha]

@pirankashani About the dosubot's answer, we are testing it to see if it adds value, so I ask for your patience (and thumbsdown) if the answers are not satisfactory.

About your request, I think what you want is to have the kubeconfig changed and for Headlamp to reflect those changes, right? We do have this in the desktop version by watching for file changes. We do not have this feature turned on when -in-cluster is true, because maybe watching for files is not desired in a server environment.
Maybe we could add a direct CLI option to watch for the files, or maybe you can respawn headlamp-server in your deployment when you recreate the kubeconfig?

[pirankashani]

@joaquimrocha Thank you for your response!
I want to use Headlamp as in-cluster setup for a Multi-cluster and Multi-platform environment. In this case there is a scenario that some clusters would be recreated or dynamically provisioned. I need to keep the clusters' connected in the GUI autonomously. Is there a way to mount an external volume as a single point of truth to let Headlamp to read all of the kubeconfigs from that volume and update the cluster lists or any other solution out of the box implemented in Headlamp to do a service discovery for instance?