kubernetes/pkg/controller/deployment/recreate.go

// rolloutRecreate implements the logic for recreating a replica set.
func (dc *DeploymentController) rolloutRecreate(ctx context.Context, d *apps.Deployment, rsList []*apps.ReplicaSet, podMap map[types.UID][]*v1.Pod) error { … }

// scaleDownOldReplicaSetsForRecreate scales down old replica sets when deployment strategy is "Recreate".
func (dc *DeploymentController) scaleDownOldReplicaSetsForRecreate(ctx context.Context, oldRSs []*apps.ReplicaSet, deployment *apps.Deployment) (bool, error) { … }

// oldPodsRunning returns whether there are old pods running or any of the old ReplicaSets thinks that it runs pods.
func oldPodsRunning(newRS *apps.ReplicaSet, oldRSs []*apps.ReplicaSet, podMap map[types.UID][]*v1.Pod) bool { … }

// scaleUpNewReplicaSetForRecreate scales up new replica set when deployment strategy is "Recreate".
func (dc *DeploymentController) scaleUpNewReplicaSetForRecreate(ctx context.Context, newRS *apps.ReplicaSet, deployment *apps.Deployment) (bool, error) { … }