trafficrouting

type Controller interface {
	// Initialize will validate the traffic routing resource
	Initialize(ctx context.Context) error
	// EnsureRoutes check and set canary desired weight. desiredWeight[0,100]
	// 1. check if canary has been set desired weight.
	// 2. If not, set canary desired weight
	// When the first set weight is returned false, mainly to give the provider some time to process, only when again ensure, will return true
	// When desiredWeight=0, it means that rollout has been completed and the final traffic switching process is in progress,
	// and the canary weight should be set to 0 at this time.
	EnsureRoutes(ctx context.Context, desiredWeight int32) (bool, error)
	// Finalise will do some cleanup work after the canary rollout complete, such as delete canary ingress.
	// Finalise is called with a 3-second delay after completing the canary.
	Finalise(ctx context.Context) error
}