Example #1
0
// WatchServices begins watching for new, changed, or deleted service configurations.
func (r *Registry) WatchServices(ctx api.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
	version, err := storage.ParseWatchResourceVersion(resourceVersion, "service")
	if err != nil {
		return nil, err
	}
	if !label.Empty() {
		return nil, fmt.Errorf("label selectors are not supported on services")
	}
	if value, found := field.RequiresExactMatch("name"); found {
		key, err := makeServiceKey(ctx, value)
		if err != nil {
			return nil, err
		}
		// TODO: use generic.SelectionPredicate
		return r.Watch(key, version, storage.Everything)
	}
	if field.Empty() {
		return r.WatchList(makeServiceListKey(ctx), version, storage.Everything)
	}
	return nil, fmt.Errorf("only the 'name' and default (everything) field selectors are supported")
}
Example #2
0
// WatchRoutes begins watching for new, changed, or deleted route configurations.
func (registry *Etcd) WatchRoutes(ctx kapi.Context, label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
	if !label.Empty() {
		return nil, fmt.Errorf("label selectors are not supported on routes yet")
	}

	version, err := storage.ParseWatchResourceVersion(resourceVersion, "pod")
	if err != nil {
		return nil, err
	}

	if value, found := field.RequiresExactMatch("ID"); found {
		key, err := makeRouteKey(ctx, value)
		if err != nil {
			return nil, err
		}
		return registry.Watch(key, version, storage.Everything)
	}

	if field.Empty() {
		key := kubeetcd.MakeEtcdListKey(ctx, RoutePath)
		return registry.WatchList(key, version, storage.Everything)
	}
	return nil, fmt.Errorf("only the 'ID' and default (everything) field selectors are supported")
}