kubelet会启动gorountie来周期性的更新pod的cgroup信息,维持其正确.实现了pod的Guaranteed/BestEffort/Burstable三种级别的Qos,通过配置kubelet可以有效的保证了当有大量pod在node上运行时,保证node节点的稳定性.该模块中涉及的struct主要包括
status.IsSuccess() {klog.V(1).InfoS("Failed to bind pod","pod", klog.KObj(assumed))return}fwk.EventRecorder().Eventf(assumed,nil, v1.EventTypeNormal,"Scheduled","Binding","Successfully assigned %v/%v to %v", assumed.Namespace, assumed.Name, targetNode)} Kubelet 发现需要被处理的 Pod...
go kl.volumeManager.Run(kl.sourcesReady, wait.NeverStop)+// Check the container runtime status.+// This has to run before kl.syncNodeStatus (https://issues.k8s.io/124397)+go wait.Until(kl.updateRuntimeUp, 5*time.Second, wait.NeverStop)+if kl.kubeClient != nil { // Start two go-...
nodeSelector: #节点选择,先给主机打标签kubectl label nodes kube-node1 zone=node1 zone: node1 containers: - name: web04-pod #容器的名字 image: web:apache #容器使用的镜像地址 imagePullPolicy: Never #三个选择Always、Never、IfNotPresent,每次启动时检查和更新(从registery)images的策略, # Always,...
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glog.Warning("No api server defined - no node status update will be sent.") } // Start the cloud provider sync manager if kl.cloudResourceSyncManager != nil { go kl.cloudResourceSyncManager.Run(wait.NeverStop) } if err := kl.initializeModules(); err != nil { kl.recorder.Eventf(kl...
Updating one cluster from 4.10.39 to 4.11.13 failed. While updating the first master node, something seemingly went wrong as the master node never reconnected to the cluster. When checking we found the below messages forkubelet.service
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With CRI-O1.21.5, I never triggered the issue with Kubernetes :1.21.10,1.22.7and1.23.4. However, with CRI-O >=1.22, all my tests triggered the issue : Kubernetes1.22.1, CRI-O1.22.1 Kubernetes1.22.7, CRI-O1.22.2 Kubernetes1.23.4, CRI-O1.23.1 ...
Ready True Thu, 25 Apr 2019 10:42:30 +0800 Thu, 25 Apr 2019 09:38:28 +0800 KubeletReady kubelet is posting ready status OutOfDisk Unknown Tue, 23 Apr 2019 17:30:44 +0800 Wed, 24 Apr 2019 21:52:20 +0800 NodeStatusNeverUpdated Kubelet never posted node status. ...