Pod Lifecycle

The lifecycle of a typical Pod goes something like this: you define it in a YAML manifest file and POST the manifest to the API server. Once there, the contents of the manifest are persisted to the cluster store as a record of intent (desired state), and the Pod is scheduled to a healthy node with enough resources. Once it’s scheduled to a node, it enters the pending state while the container runtime on the node downloads images and starts any containers. The Pod remains in the pending state until all of its resources are up and ready. Once everything’s up and ready, the Pod enters the running state. Once it has completed all of its tasks, it gets terminated and enters the succeeded state.