Kubernetes relies on Container Network Interface (CNI) plugins to assign IP addresses to pods and manage routes between all pods. Kubernetes doesn’t ship with a default CNI plugin, however, managed Kubernetes offerings come with a pre-configured CNI. By Peter Jausovec.
The article then pays attention to these four key networking problems solved by Kubernetes:
- Container-to-container communication
- Pod-to-pod communication
- Pod-to-service communication
- Ingress and egress communication
- Unpacking the Role of Kubelet in Kubernetes
- Role of kube-proxy
- How iptables kube-proxy mode works?
- How IPVS kube-proxy mode works?
… and more. In this article, we delved deep into the networking aspects of Kubernetes, including the role of various components such as kube-proxy, kubelet, and CNI plugins. We discussed how the iptables and IPVS modes of kube-proxy work and how they manage service routing and load balancing in the Kubernetes cluster. Good read!
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