Kubernetes cluster architecture

About this example

Kubernetes clusters are the foundation of modern, scalable application deployment. This diagram demonstrates:

• Control Plane Components: The central management tools including the API server, scheduler, controller manager, and etcd.
• Node Structure: The workings inside a node showing kubelet and kube-proxy and their interaction with containers.
• Cloud Integration: Interaction between the cluster’s control plane and the cloud provider API for resource management.
• Pod Management: How pods are managed on each node, showcasing the Container Runtime Interface (CRI) and actual pod instances.

When to use

• Infrastructure Design: When architecting the infrastructure for containerized applications, ensuring best practices in cluster setup.
• Training Purposes: To train new engineers on the components and interactions within a Kubernetes cluster.
• Cloud Transition: For teams transitioning from traditional hosting to cloud-native services, providing a clear structure of Kubernetes on a cloud provider.

How to use

1. Start editing: Duplicate the example file and double-click on the diagram.
2. Customize diagram: Add/modify nodes, groups, and relationships using a diagram-as-code syntax, customizing the architecture to suit your deployment needs.
3. Customize layout: Adjust the placement and size of elements on the diagram for better readability and flow.
4. Collect feedback: Share the diagram with your team and stakeholders to gather feedback and achieve a collaborative final design.