Kube-State-Metrics gathers state metrics about Kubernetes objects via which API?

Kube-State-Metrics gathers state metrics about Kubernetes objects via which API?

• A. REST API
• B. Kubernetes API
• C. Docker API
• D. Cloud API

Answer: (B)

Kube-State-Metrics pulls its data from the Kubernetes API server. It queries the Kubernetes control plane to read the current state of cluster objects like Pods, Nodes, Deployments, and more, and then exposes those metrics in Prometheus format for scraping. This means the source of truth is the Kubernetes API, not the container runtime’s Docker API or any external Cloud API. While the Kubernetes API is RESTful, the important point is that Kube-State-Metrics obtains metrics by talking to the Kubernetes API server.

Kube-State-Metrics pulls its data from the Kubernetes API server. It queries the Kubernetes control plane to read the current state of cluster objects like Pods, Nodes, Deployments, and more, and then exposes those metrics in Prometheus format for scraping. This means the source of truth is the Kubernetes API, not the container runtime’s Docker API or any external Cloud API. While the Kubernetes API is RESTful, the important point is that Kube-State-Metrics obtains metrics by talking to the Kubernetes API server.