Pod Priority Based Graceful Node Shutdown

Goals

• Make kubelet aware of underlying node shutdown event and trigger pod termination with sufficient grace period to shutdown properly
• Handle node shutdown in cloud-provider agnostic way
• Introduce minimal shutdown delay in order to shutdown node soon as possible (but not sooner)
• Focus on handling shutdown on systemd based machines

Story 1

• As a cluster administrator, I can configure the nodes in my cluster to allocate X seconds for my pods to terminate gracefully during a node shutdown

https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2000-graceful-node-shutdown#story-2Story 2

• As a developer I can expect that my pods will terminate gracefully during node shutdowns

https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2000-graceful-node-shutdown