kubelet在127.0.0.1监听随机端口

找了好久，可以参考下

大神的文章

1.15 集群，kubenetes 部分源码

pkg/kubelet/kubelet.go

// Gets the streaming server configuration to use with in-process CRI shims.
func getStreamingConfig(kubeCfg *kubeletconfiginternal.KubeletConfiguration, kubeDeps *Dependencies, crOptions *config.ContainerRuntimeOptions) *streaming.Config {
	config := &streaming.Config{
		StreamIdleTimeout:               kubeCfg.StreamingConnectionIdleTimeout.Duration,
		StreamCreationTimeout:           streaming.DefaultConfig.StreamCreationTimeout,
		SupportedRemoteCommandProtocols: streaming.DefaultConfig.SupportedRemoteCommandProtocols,
		SupportedPortForwardProtocols:   streaming.DefaultConfig.SupportedPortForwardProtocols,
	}
	if !crOptions.RedirectContainerStreaming {
		config.Addr = net.JoinHostPort("localhost", "0")
	} else {
		// Use a relative redirect (no scheme or host).
		config.BaseURL = &url.URL{
			Path: "/cri/",
		}
		if kubeDeps.TLSOptions != nil {
			config.TLSConfig = kubeDeps.TLSOptions.Config
		}
	}
	return config
}