Files
kubernetes/cmd/kube-proxy/app/server_windows.go

114 lines
3.2 KiB
Go

//go:build windows
// +build windows
/*
Copyright 2014 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 app does all of the work necessary to configure and run a
// Kubernetes app process.
package app
import (
"errors"
"fmt"
"net"
"strconv"
// Enable pprof HTTP handlers.
_ "net/http/pprof"
"k8s.io/klog/v2"
"k8s.io/kubernetes/pkg/proxy"
proxyconfigapi "k8s.io/kubernetes/pkg/proxy/apis/config"
"k8s.io/kubernetes/pkg/proxy/winkernel"
)
// platformApplyDefaults is called after parsing command-line flags and/or reading the
// config file, to apply platform-specific default values to config.
func (o *Options) platformApplyDefaults(config *proxyconfigapi.KubeProxyConfiguration) {
if config.Mode == "" {
config.Mode = proxyconfigapi.ProxyModeKernelspace
}
}
// platformSetup is called after setting up the ProxyServer, but before creating the
// Proxier. It should fill in any platform-specific fields and perform other
// platform-specific setup.
func (s *ProxyServer) platformSetup() error {
winkernel.RegisterMetrics()
return nil
}
// createProxier creates the proxy.Provider
func (s *ProxyServer) createProxier(config *proxyconfigapi.KubeProxyConfiguration) (proxy.Provider, error) {
var healthzPort int
if len(config.HealthzBindAddress) > 0 {
_, port, _ := net.SplitHostPort(config.HealthzBindAddress)
healthzPort, _ = strconv.Atoi(port)
}
// Check if Kernel Space can be used.
canUseWinKernelProxy, err := winkernel.CanUseWinKernelProxier(winkernel.WindowsKernelCompatTester{})
if !canUseWinKernelProxy && err != nil {
return nil, err
}
var proxier proxy.Provider
dualStackMode := getDualStackMode(config.Winkernel.NetworkName, winkernel.DualStackCompatTester{})
if dualStackMode {
klog.InfoS("Creating dualStackProxier for Windows kernel.")
proxier, err = winkernel.NewDualStackProxier(
config.IPTables.SyncPeriod.Duration,
config.IPTables.MinSyncPeriod.Duration,
config.ClusterCIDR,
s.Hostname,
s.NodeIPs,
s.Recorder,
s.HealthzServer,
config.Winkernel,
healthzPort,
)
} else {
proxier, err = winkernel.NewProxier(
config.IPTables.SyncPeriod.Duration,
config.IPTables.MinSyncPeriod.Duration,
config.ClusterCIDR,
s.Hostname,
s.NodeIPs[s.PrimaryIPFamily],
s.Recorder,
s.HealthzServer,
config.Winkernel,
healthzPort,
)
}
if err != nil {
return nil, fmt.Errorf("unable to create proxier: %v", err)
}
return proxier, nil
}
func getDualStackMode(networkname string, compatTester winkernel.StackCompatTester) bool {
return compatTester.DualStackCompatible(networkname)
}
// cleanupAndExit cleans up after a previous proxy run
func cleanupAndExit() error {
return errors.New("--cleanup-and-exit is not implemented on Windows")
}