LastDownscaleAnnotationKey is the last time the statefulset was scaled down in UTC in time.RFC3339 format.

MinTimeBetweenZonesDownscaleLabelKey is the minimum duration allowed between downscales of zones that are part of the same rollout group in Go time.Duration format.

NoDownscaleLabelKey is the label to prevent downscaling of a statefulset.

PrepareDownscaleLabelKey is the label to prepare each pod in a statefulset when down scaling.

PrepareDownscalePathAnnotationKey is the path to the endpoint on each pod that should be called when the statefulset is being prepared to be scaled down.

PrepareDownscalePortAnnotationKey is the port on each pod that should be used when the statefulset is being prepared to be scaled down.

RolloutDelayedDownscaleAnnotationKey configures delay for downscaling.

RolloutDelayedDownscalePrepareUrlAnnotationKey is a full URL to prepare-downscale endpoint.

RolloutDownscaleLeaderAnnotationKey is the name of the leader statefulset that should be used to determine the number of replicas in a follower statefulset.

RolloutGroupLabelKey is the group to which multiple statefulsets belong and must be operated on together.

RolloutLeaderReadyKey is whether to only scale up once `ready` replicas match the desired replicas.

RolloutMaxUnavailableAnnotationKey is the max number of pods in each statefulset that may be stopped at one time.

optional.

RolloutMirrorReplicasFromResourceNameAnnotationKey -- when set (together with "kind" and optionally "api-version" annotations), rollout-operator sets number of replicas based on replicas in this resource (its scale subresource).

optional.