54 lines
1.6 KiB
Go
54 lines
1.6 KiB
Go
|
/*
|
||
|
|
Copyright 2016 The Kubernetes Authors.
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
// Package healthcheck LoadBalancer Healthcheck responder library for kubernetes network proxies
|
||
|
|
package healthcheck // import "k8s.io/kubernetes/pkg/proxy/healthcheck"
|
||
|
|
|
||
|
|
import (
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/golang/glog"
|
||
|
|
)
|
||
|
|
|
||
|
|
var healthchecker *proxyHC
|
||
|
|
|
||
|
|
// handlerLoop Serializes all requests to prevent concurrent access to the maps
|
||
|
|
func (h *proxyHC) handlerLoop() {
|
||
|
|
ticker := time.NewTicker(1 * time.Minute)
|
||
|
|
defer ticker.Stop()
|
||
|
|
for {
|
||
|
|
select {
|
||
|
|
case req := <-h.mutationRequestChannel:
|
||
|
|
h.handleMutationRequest(req)
|
||
|
|
case req := <-h.listenerRequestChannel:
|
||
|
|
req.responseChannel <- h.handleServiceListenerRequest(req)
|
||
|
|
case <-ticker.C:
|
||
|
|
go h.sync()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (h *proxyHC) sync() {
|
||
|
|
glog.V(4).Infof("%d Health Check Listeners", len(h.serviceResponderMap))
|
||
|
|
glog.V(4).Infof("%d Services registered for health checking", len(h.serviceEndpointsMap.List()))
|
||
|
|
for _, svc := range h.serviceEndpointsMap.ListKeys() {
|
||
|
|
if e, ok := h.serviceEndpointsMap.Get(svc); ok {
|
||
|
|
endpointList := e.(*serviceEndpointsList)
|
||
|
|
glog.V(4).Infof("Service %s has %d local endpoints", svc, endpointList.endpoints.Len())
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|