func (kd *KubeDNS) addDNSUsingEndpoints(e *v1.Endpoints) error {
svc, err := kd.getServiceFromEndpoints(e)
if err != nil {
return err
}
if svc == nil || v1.IsServiceIPSet(svc) {
// No headless service found corresponding to endpoints object.
return nil
}
return kd.generateRecordsForHeadlessService(e, svc)
}
func (kd *KubeDNS) removeService(obj interface{}) {
if s, ok := assertIsService(obj); ok {
subCachePath := append(kd.domainPath, serviceSubdomain, s.Namespace, s.Name)
kd.cacheLock.Lock()
defer kd.cacheLock.Unlock()
success := kd.cache.DeletePath(subCachePath...)
glog.V(2).Infof("removeService %v at path %v. Success: %v",
s.Name, subCachePath, success)
// ExternalName services have no IP
if v1.IsServiceIPSet(s) {
delete(kd.reverseRecordMap, s.Spec.ClusterIP)
delete(kd.clusterIPServiceMap, s.Spec.ClusterIP)
}
}
}
func (kd *KubeDNS) newService(obj interface{}) {
if service, ok := assertIsService(obj); ok {
glog.V(2).Infof("New service: %v", service.Name)
glog.V(4).Infof("Service details: %v", service)
// ExternalName services are a special kind that return CNAME records
if service.Spec.Type == v1.ServiceTypeExternalName {
kd.newExternalNameService(service)
return
}
// if ClusterIP is not set, a DNS entry should not be created
if !v1.IsServiceIPSet(service) {
kd.newHeadlessService(service)
return
}
if len(service.Spec.Ports) == 0 {
glog.Warningf("Service with no ports, this should not have happened: %v",
service)
}
kd.newPortalService(service)
}
}