Kubernetes Architecture Diagram
Show the Kubernetes control plane and worker node components and how they connect.
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A Kubernetes architecture diagram lays out the cluster's control plane and worker nodes. The control plane includes the API server, etcd key-value store, scheduler, and controller manager, while worker nodes run the kubelet, container runtime, and kube-proxy to host pods. The diagram clarifies how scheduling decisions and cluster state flow between these components.
Cloud architects, SREs, and engineers learning Kubernetes use it to explain cluster internals, plan capacity, and onboard teams to container orchestration. It is common in platform documentation, certification study guides, and architecture proposals for managed clusters like EKS, GKE, or AKS.
Great for
- Cloud architecture proposals
- Kubernetes certification study
- Platform onboarding
- SRE documentation
- Technical training slides
Frequently asked questions
What is Kubernetes architecture?+
Kubernetes architecture is a control plane that manages cluster state plus worker nodes that run application pods, coordinated through the API server.
What are the main components of Kubernetes?+
The core components are the API server, etcd, scheduler, controller manager on the control plane, and kubelet, kube-proxy, and a container runtime on each worker node.
What does etcd do in Kubernetes?+
etcd is the distributed key-value store that holds all cluster state and configuration, acting as the single source of truth for the control plane.
How do pods get scheduled?+
The scheduler watches for unassigned pods and selects a suitable worker node based on resource requests, constraints, and affinity rules, then the kubelet starts them.
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