versionupgrade

type Config struct {
	Logger    *zap.Logger
	LogWriter io.Writer
	Stopc     chan struct{}
	EKSConfig *eksconfig.Config
	K8SClient k8s_client.EKS
	EKSAPI    eksiface.EKSAPI
}

type Upgrader interface {
	// Upgrade starts MNG version upgrade process, and waits for its completion.
	// ref. https://docs.aws.amazon.com/cli/latest/reference/eks/update-nodegroup-version.html
	Upgrade(mngName string) error
}