Kubernetes components
30 May 2025 (Updated 30 May 2025)
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Control plane components
| Component | Description |
|---|---|
| kube-apiserver | Frontend for the Kubernetes control plane; exposes the Kubernetes API. |
| etcd | A distributed key-value store for storing all cluster data. |
| kube-scheduler | Decides which node a new pod should run on. |
| kube-controller-manager | Runs controllers that manage cluster state (e.g., Deployment, ReplicaSet, Node, etc). |
| cloud-controller-manager | Integrates with cloud providers for things like load balancers and storage. |
Worker node components
| Component | Description |
|---|---|
| kubelet | Agent that ensures containers are running in a pod on that node. |
| kube-proxy | Manages network routing to pods on the node using iptables or IPVS. |
| Container runtime | The actual software that runs containers (e.g., containerd, CRI-O). |
Tagged:
Kubernetes