Understand how pods in Kubernetes cluster uses pause containers to hold network namespace. Kubernetes creates pause containers to acquire pod’s IP address. How Kubernetes uses pause containers to find when to re-create a new pod. When pause container to stopped, Kubernetes re-create the entire pod with all business containers in it. But if the application container is stopped, Kubernetes won’t re-create the pod, only business application container is re-created, without change in any IP.

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