How the CRI Works
Learn how the CRI works in Kubernetes.
We'll cover the following...
Overview
In Kubernetes, the smallest deployable and schedulable unit is a Pod. One or more containers are grouped into one Pod. Such a Pod design can well support multiple cooperating processes for a cohesive unit of Service. Each process runs in a separate container. Multiple containers serve as a standalone Service or application.
But how does kubelet turn a Pod to multiple running containers?
The role of kubelet
The kubelet agent watches the kube-apiserver as new Pods get scheduled to the current node. It processes the specification of a Pod and ensures all the specified containers for the Pod are up and running as declared.
To create a container, kubelet ...