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最新推荐文章于 2025-10-18 16:55:18 发布

原创最新推荐文章于 2025-10-18 16:55:18 发布 · 373 阅读

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kubelete启动会启动docker相应server

ds, err := dockershim.NewDockerService(dockerClientConfig, r.PodSandboxImage, streamingConfig, &pluginSettings,
   f.RuntimeCgroups, c.CgroupDriver, r.DockershimRootDirectory, true /*startLocalStreamingServer*/)
if err != nil {
   return err
}

会启动三个server,（1）一个用于remote远程通信的grpc的服务，（2）一个container manager用于定时的去保证docker进程在容器里面，（3）还有一个streaming server,用于进行监听docker请求

（2）if err := kubecm.EnsureDockerInContainer(version, dockerOOMScoreAdj, m.cgroupsManager); err != nil {
   glog.Errorf("Unable to ensure the docker processes run in the desired containers: %v", err)
}

（3）处理请求

{"/exec/{token}", s.serveExec},
{"/attach/{token}", s.serveAttach},
{"/portforward/{token}", s.servePortForward},

ds := &dockerService{
   client:          c,
   os:              kubecontainer.RealOS{},
   podSandboxImage: podSandboxImage,
   streamingRuntime: &streamingRuntime{
      client:      client,
      execHandler: &NativeExecHandler{},
   },
   containerManager:          cm.NewContainerManager(cgroupsName, client),
   checkpointManager:         checkpointManager,
   startLocalStreamingServer: startLocalStreamingServer,