func NewHealthyRegistry(delegate Registry, client client.KubeletHealthChecker, clock util.Clock, ttl time.Duration) Registry {
h := &HealthyRegistry{
delegate: delegate,
client: client,
}
h.cache = util.NewTimeCache(clock, ttl, h.doCheck)
return h
}
// NewIPCache makes a new ip caching layer, which will get IP addresses from cp,
// and use clock for deciding when to re-get an IP address.
// Thread-safe.
//
// TODO: when we switch to go1.4, this class would be a good candidate for something
// that could be produced from a template and a type via `go generate`.
func NewIPCache(cp cloudprovider.Interface, clock util.Clock, ttl time.Duration) *ipCache {
return &ipCache{
cache: util.NewTimeCache(
clock,
ttl,
func(host string) util.T {
return getInstanceIPFromCloud(cp, host)
},
),
}
}