Compute, storage and network are the foundations of any infrastructure service. In Kubernetes, nodes represent the compute building block, which provides those foundational network and storage resources to pods running in the clusters. The network and storage services are delivered by software-defined, container-native plugins designed for Kubernetes.

The network component enables pod-to-pod, node-to-pod, pod-to-service, and external clients-to-service communication. Kubernetes follows a plugin model for implementing networking. Kubenet is the default network plugin and it is simple to configure. It is typically used together with a cloud provider that sets up routing rules for communication between nodes, or in single-node environments.

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