mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-14 18:30:21 +00:00
139 lines
4.0 KiB
Go
139 lines
4.0 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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proxyconfig "k8s.io/kubernetes/pkg/proxy/config"
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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 serviceHandler proxyconfig.ServiceHandler
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var endpointsHandler proxyconfig.EndpointsHandler
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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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proxierIPTables, 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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proxier = proxierIPTables
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serviceHandler = proxierIPTables
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endpointsHandler = proxierIPTables
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} else {
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proxier = &FakeProxier{}
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serviceHandler = &FakeProxier{}
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endpointsHandler = &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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ServiceEventHandler: serviceHandler,
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EndpointsEventHandler: endpointsHandler,
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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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