Flannel is indeed a network fabric. In the context of container networking, a network fabric like Flannel is responsible for providing the underlying infrastructure that enables communication between containers running on different hosts within a cluster.

Flannel creates an overlay network that abstracts the physical network infrastructure, allowing containers to communicate with each other over a virtual network. This overlay network helps in simplifying networking for containerized applications by providing a seamless and scalable way for containers to interact with one another, regardless of the underlying host they are running on.

By establishing this network fabric, Flannel facilitates the connectivity and communication between containers, enabling them to function as part of a distributed system while abstracting the complexity of networking configurations and routing. This abstraction layer provided by Flannel simplifies the deployment and management of containerized applications across multiple nodes in a cluster.

#cni #flannel #net #k8s #kuber #kube #kubernetes #linux #minikube #k3s #k3d #container #kernel #overlay


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