Automate Merging Multiple kubeconfig Files with kubectx.manager

Many users frequently deploy and delete Kubernetes clusters, requiring frequent switching of kubeconfig files for kubectl. Manually merging them is cumbersome.

kubectx.manager is a Node.js‑based tool that can automatically merge multiple kubeconfig files into one and also delete unwanted contexts.

Installation:

npm install -g git+https://[email protected]/AveryanovS/kubectx.manager

To merge, run kubemanager without arguments and follow the prompts to select the action, specify the target config, the config to merge, and the name of the new context.

Select merge to combine configs.

Choose the destination kubeconfig file.

Choose the source kubeconfig file to merge.

Provide a name for the new context.

Removing unwanted contexts follows a similar interactive flow.

For fast context switching after merging, the author recommends the kubie plugin, which is written in Rust and can be installed via Cargo or downloaded as a binary.