Match check if the given DaemonSet's template matches the template stored in the given history.

Predicates checks if a DaemonSet's pod can be scheduled on a node using GeneralPredicates and PodToleratesNodeTaints predicate.

The value of 250 is chosen b/c values that are too high can cause registry DoS issues.

FailedDaemonPodReason is added to an event when the status of a Pod of a DaemonSet is 'Failed'.

FailedPlacementReason is added to an event when a DaemonSet can't schedule a Pod to a specified node.

Reasons for DaemonSet events SelectingAllReason is added to an event when a DaemonSet selects all Pods.

If sending a status upate to API server fails, we retry a finite number of times.

DaemonSetsController is responsible for synchronizing DaemonSet objects stored in the system with actual running pods.