kerberos

type Auth struct {
	// Client is a Kerberos client.
	Client *client.Client

	// Service is the service name we will get a ticket for.
	Service string

	// PersistAfterAuth specifies whether the client should persist after
	// logging in or if it should be destroyed (the default).
	//
	// If persisting, we never call client.Destroy ourselves, and it is
	// expected that you will return the same client in every authFn. The
	// client itself spins up a goroutine to automatically renew sessions,
	// thus if you return the same client, nothing leaks, but if you return
	// a new client on every call and set PersistAfterAuth, goroutines will
	// leak.
	PersistAfterAuth bool
}