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## Karpenter Headlamp Plugin
This Headlamp plugin adds **Karpenter-specific custom resources** to the Headlamp UI, helping users visualize, understand, and manage **autoscaling decisions** in a more intuitive way.
### Features
#### Current Features
* **NodeClass Visualization:**
* Clean UI to view Karpenter NodeClass CRs
* Shows key attributes (subnet selectors, IAM role, etc.)
* Status and condition rendering in a human-readable format
* **Provisioner & NodePool Support:**
* View and inspect Provisioners and NodePools
* See constraints like CPU, requirements, disruption etc.
* **Pending Pod Dashboard:**
* Displays pending pods blocked from scheduling
* Shows unmet requirements
* **CRD Editing:**
* Use Headlamp’s editor to configure Karpenter CRDs
* Includes schema validation and diff preview
#### Upcoming Work
* **Real-time visualization of scaling decisions**
* **Prometheus integration for metrics like:**
* Provisioning latency
* Node lifecycle stats
* Cost efficiency insights
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Ensure you have Karpenter installed in your Kubernetes cluster:
Here is one demo video of the diff editor:
Screencast.from.2025-07-23.22-59-40.webm
Please see this and other closed PRs which have descriptions and more videos and screenshots of the features.
Karpenter is a multi-cloud project with implementations by the following cloud providers:
- Node.js and npm
- Docker
- Helm
- A Kubernetes cluster with Karpenter installed
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Clone the plugin repository:
git clone https://github.com/headlamp-k8s/plugins.git
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Navigate to karpenter plugin directory
cd karpenter -
Install all the required dependencies
npm install
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Start the plugin in development mode
npm start
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Launch Headlamp. You should now see "Karpenter" in the sidebar.