Kubefeeds Team A dedicated and highly skilled team at Kubefeeds, driven by a passion for Kubernetes and Cloud-Native technologies, delivering innovative solutions with expertise and enthusiasm.

Kubernetes Myth #04: K8s Can Work Without a CNI Plugin

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Think you can run Kubernetes without a CNI plugin? ๐Ÿค” Think again!

๐Ÿ”ฎ Myth: Kubernetes can function without a CNI (Container Network Interface) plugin.

โœ… Reality: Kubernetes needs a CNI (Container Network Interface) plugin to function properly. Without one:
โŒ Pods canโ€™t communicate across nodes.
โŒ kubectl exec and kubectl logs may stop working.
โŒ Pods might get stuck in ContainerCreating.

Think of it like setting up a phone system without any network providerโ€”sure, you have the hardware, but no way to actually connect!

A CNI (Container Network Interface) plugin is essential for:
โœ… Pod-to-pod communication across nodes
โœ… Service discovery & load balancing
โœ… IP address management for pods

Unless you rely on host networking (which isnโ€™t scalable), a CNI plugin like Calico, Flannel, or Cilium is a must!

๐Ÿ’ก Moral of the story? Donโ€™t overlook networkingโ€”without a CNI, your Kubernetes cluster is just a bunch of isolated containers.

Which CNI do you prefer? Drop your thoughts below! โฌ‡๏ธ

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Kubefeeds Team A dedicated and highly skilled team at Kubefeeds, driven by a passion for Kubernetes and Cloud-Native technologies, delivering innovative solutions with expertise and enthusiasm.