4b07f80d20
Proxies should be able to cleanly figure out when endpoints have been synced, so make all ProxyProviders also implement EndpointsHandler and pass those through to loadbalancers when required.
130 lines
3.6 KiB
Go
130 lines
3.6 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubemark
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import (
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"fmt"
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"time"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/types"
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clientset "k8s.io/client-go/kubernetes"
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v1core "k8s.io/client-go/kubernetes/typed/core/v1"
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"k8s.io/client-go/tools/record"
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proxyapp "k8s.io/kubernetes/cmd/kube-proxy/app"
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"k8s.io/kubernetes/pkg/proxy"
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"k8s.io/kubernetes/pkg/proxy/iptables"
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utiliptables "k8s.io/kubernetes/pkg/util/iptables"
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utilnode "k8s.io/kubernetes/pkg/util/node"
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utilsysctl "k8s.io/kubernetes/pkg/util/sysctl"
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utilexec "k8s.io/utils/exec"
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utilpointer "k8s.io/utils/pointer"
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"k8s.io/klog"
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)
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type HollowProxy struct {
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ProxyServer *proxyapp.ProxyServer
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}
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type FakeProxier struct{}
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func (*FakeProxier) Sync() {}
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func (*FakeProxier) SyncLoop() {
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select {}
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}
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func (*FakeProxier) OnServiceAdd(service *v1.Service) {}
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func (*FakeProxier) OnServiceUpdate(oldService, service *v1.Service) {}
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func (*FakeProxier) OnServiceDelete(service *v1.Service) {}
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func (*FakeProxier) OnServiceSynced() {}
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func (*FakeProxier) OnEndpointsAdd(endpoints *v1.Endpoints) {}
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func (*FakeProxier) OnEndpointsUpdate(oldEndpoints, endpoints *v1.Endpoints) {}
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func (*FakeProxier) OnEndpointsDelete(endpoints *v1.Endpoints) {}
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func (*FakeProxier) OnEndpointsSynced() {}
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func NewHollowProxyOrDie(
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nodeName string,
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client clientset.Interface,
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eventClient v1core.EventsGetter,
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iptInterface utiliptables.Interface,
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sysctl utilsysctl.Interface,
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execer utilexec.Interface,
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broadcaster record.EventBroadcaster,
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recorder record.EventRecorder,
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useRealProxier bool,
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proxierSyncPeriod time.Duration,
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proxierMinSyncPeriod time.Duration,
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) (*HollowProxy, error) {
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// Create proxier and service/endpoint handlers.
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var proxier proxy.ProxyProvider
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var err error
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if useRealProxier {
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// Real proxier with fake iptables, sysctl, etc underneath it.
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//var err error
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proxier, err = iptables.NewProxier(
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iptInterface,
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sysctl,
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execer,
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proxierSyncPeriod,
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proxierMinSyncPeriod,
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false,
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0,
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"10.0.0.0/8",
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nodeName,
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utilnode.GetNodeIP(client, nodeName),
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recorder,
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nil,
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[]string{},
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)
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if err != nil {
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return nil, fmt.Errorf("unable to create proxier: %v", err)
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}
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} else {
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proxier = &FakeProxier{}
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}
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// Create a Hollow Proxy instance.
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nodeRef := &v1.ObjectReference{
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Kind: "Node",
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Name: nodeName,
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UID: types.UID(nodeName),
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Namespace: "",
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}
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return &HollowProxy{
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ProxyServer: &proxyapp.ProxyServer{
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Client: client,
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EventClient: eventClient,
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IptInterface: iptInterface,
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Proxier: proxier,
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Broadcaster: broadcaster,
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Recorder: recorder,
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ProxyMode: "fake",
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NodeRef: nodeRef,
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OOMScoreAdj: utilpointer.Int32Ptr(0),
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ResourceContainer: "",
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ConfigSyncPeriod: 30 * time.Second,
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},
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}, nil
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}
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func (hp *HollowProxy) Run() {
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if err := hp.ProxyServer.Run(); err != nil {
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klog.Fatalf("Error while running proxy: %v\n", err)
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}
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}
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