Master apiserver启用TLS认证后,Node节点kubelet组件想要加入集群,必须使用CA签发的有效证书才能与apiserver通信,当Node节点很多时,签署证书是一件很繁琐的事情,因此有了TLS Bootstrapping机制,kubelet会以一个低权限用户自动向apiserver申请证书,kubelet的证书由apiserver动态签署。 1.6.1 认证流程 认证大致工作流程如图所示:...
[mark-control-plane] Marking the node master as control-plane by adding the label "node-role.kubernetes.io/master=''" [mark-control-plane] Marking the node master as control-plane by adding the taints [node-role.kubernetes.io/master:NoSchedule] [bootstrap-token] Using token: abcdef.0123456...
root@hecs-411543:~# kubectl top nodes W0417 16:54:56.706179 14684 top_node.go:119] Using json format to get metrics. Next release will switch to protocol-buffers, switch early by passing --use-protocol-buffers flag NAME CPU(cores) CPU% MEMORY(bytes) MEMORY% edge02 41m 2% 291Mi 15% ...
kubectl get pods -o custom-columns="NAME:.metadata.name,STATUS:.status.phase" 3. 安全最佳实践 RBAC精细控制:避免使用cluster-admin,按需分配权限: # role.yamlapiVersion:rbac.authorization.k8s.io/v1kind:Rolerules:-apiGroups:[""]resources:["pods"]verbs:["get","list"] Kubeconfig多环境隔离:分...
kubectl get node 查看集群内指定node的详细信息 kubectl describe node vm-0-11-ubuntu 查看namespace kubectl get ns ns是namespace的简写 查看namespace的全况 kubectl get all [-n xxxxnamespace] 下面这种不加-n的就是使用默认ns: default 查看指定ns的service kubectl get svc -n ok 查看service的详细信息...
效果, 已经没有别的namespace的权限了,也不能访问node信息了: [root@master1~]# kubectlgetnode Errorfromserver (Forbidden): nodesisforbidden:User"devuser" cannot list nodesatthe clusterscope[root@master1~]# kubectlgetpod-n kube-systemNAME READY STATUS RESTARTS AGE ...
-apiGroups:-metrics.k8s.ioresources:-pods-nodesverbs:-get-list-watch---apiVersion:rbac.authorization.k8s.io/v1kind:ClusterRolemetadata:labels:k8s-app:metrics-servername:system:metrics-serverrules:-apiGroups:-""resources:-nodes/metricsverbs:-get-apiGroups:-""resources:-pods-nodesverbs:-get-list-...
More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata","priority":0},{"name":"Version","type":"string","format":"","description":"Kubelet Version reported by the node.","priority":0},{"name":"Internal-IP","type":"string","format":...
$ kubectlgetnodes k8s-node-1-o jsonpath='{.status.daemonEndpoints.kubeletEndpoint}'map[Port:10250] 然后检查网络。是否存在到工作节点(192.168.205.11)的连接?可以看到,当我杀死 exec 进程时,它消失了,所以我知道它正是由于 exec 命令而由 API Server 设置的 ...
- apiGroups: [""] # "" indicates the core API group resources: ["pods"] verbs: ["get", "watch", "list"] kubectl create -f pod-reader.yaml 绑定用户 创建一个角色绑定,把pod-reader角色绑定到 devuser上 [root@master1 ~]# cat devuser-role-bind.yaml ...