Kubelet Interaction Simulation

Understanding how kubelet manages containers on a node

Actions

Simulation Speed

Normal

Worker Node

Ready

Kubelet

System initialized

Container Runtime

API Server

Pod Objects

Volumes

Simulation initialized

How Kubelet Works

The kubelet is an agent that runs on each node in a Kubernetes cluster. It ensures that containers are running in a Pod as expected.

Key responsibilities:

  • Watching the API server for changes to Pods assigned to its node
  • Managing container lifecycle via the container runtime
  • Reporting Pod and node status back to the API server
  • Performing container health checks
  • Mounting required volumes

This simulation demonstrates these interactions as you trigger different actions.

Kubelet Architecture

API Server
Kubelet
Container Runtime Interface
Containers
Volumes

The kubelet connects to the API Server to receive Pod specifications and report status. It uses the Container Runtime Interface to manage containers, and handles volume mounts to provide storage to Pods.