k8s 操作命令(合集List)
k8s 操作命令 合集List一、K8S最常用命令如下：
1、获取pod信息：kubectl get pod
2、查看指定pod的日志信息：kubectl logs -f --tail(最后多少行) 500 podName(pod名)
3、查看pod的描述信息：kubectl describe pod podName
4、查看节点信息：kubectl get nodes
5、查看pod的详细信息，以yaml或者json格式展示：kubectl get pods -o yaml、kubectl get pods -o json
6、查看所有名称空间的pod：kubectl get pod -A
7、查看指定pod的环境变量：kubectl exec podName env
8、查看所有的service信息：kubectl get svc -A
9、查看集群资源（ComponentStatuses）信息：kubectl get cs
10、查看所有名称空间：kubectl get ns
11、查看集群信息：kubectl cluster-info 、kubectl cluster-info dump
12、进入pod容器：kubectl exec -it podName -n nsName /bin/sh 、kubectl exec -it podName -n nsName /bin/bash
13、删除指定的pod：kubectl delete pod podName
14、删除指定命名空间的pod：kubectl delete pod -n test podName
15、编辑资源：kubectl edit pod podName
16、获取pod详细信息：kubectl get pod -o wide
二、k8s操作命令详解：
1、基础操作命令
alias k=kubectl echo 'alias k=kubectl' >>~/.bashrc
kubectl get pods -o=json
kubectl get pods -o=yaml
kubectl get pods -o=wide
kubectl get pods -n=
kubectl create -f ./
kubectl logs -l name=
2、资源相关
kubectl create -f – Create objects.
kubectl create -f – Create objects in all manifest files in a directory.
kubectl create -f– Create objects from a URL.
kubectl delete -f – Delete an object.
3、集群相关
kubectl cluster-info – Display endpoint information about the master and services in the cluster.
kubectl version – Display the Kubernetes version running on the client and server.
kubectl config view – Get the configuration of the cluster.
kubectl config view -o jsonpath='{.users
[*].name}' – Get a list of users.
kubectl config current-context – Display the current context.
kubectl config get-contexts – Display a list of contexts.
kubectl config use-context – Set the default context.
kubectl api-resources – List the API resources that are available.
kubectl api-versions – List the API versions that are available. kubectl get all --all-namespaces
4、Daemonsets 相关
kubectl get daemonset – List one or more daemonsets.
kubectl edit daemonset– Edit and update the definition of one or more daemonset.
kubectl delete daemonset– Delete a daemonset.
kubectl create daemonset– Create a new daemonset.
kubectl rollout daemonset – Manage the rollout of a daemonset.
kubectl describe ds-n– Display the detailed state of daemonsets within a namespace.
5、Deployments相关
kubectl get deployment – List one or more deployments.
kubectl describe deployment– Display the detailed state of one or more deployments.
kubectl edit deployment– Edit and update the definition of one or more deployments on the server.
kubectl create deployment– Create a new deployment.
kubectl delete deployment– Delete deployments.
kubectl rollout status deployment– See the rollout status of a deployment.
kubectl set image deployment/ =image: – Perform a rolling update (K8S default), set the image of the container to a new version for a particular deployment.
kubectl rollout undo deployment/ – Rollback a previous deployment.
kubectl replace --force -f – Perform a replace deployment — Force replace, delete and then re-create the resource.
6、事件相关
kubectl get events – List recent events for all resources in the system.
kubectl get events –field-selector type=Warning – List Warnings only.
kubectl get events --sort-by=.metadata.creationTimestamp – List events sorted by timestamp.
kubectl get events --field-selector involvedObject.kind!=Pod – List events but exclude Pod events.
kubectl get events --field-selector involvedObject.kind=Node, involvedObject.name= – Pull events for a single node with a specific name.
kubectl get events --field-selector type!=Normal – Filter out normal events from a list of events.
7、日志相关
kubectl logs– Print the logs for a pod.
kubectl logs --since=6h– Print the logs for the last 6 hours for a pod.
kubectl logs --tail=50– Get the most recent 50 lines of logs.
kubectl logs -f[-c ] – Get logs from a service and optionally select which container.
kubectl logs -f– Print the logs for a pod and follow new logs.
kubectl logs -c – Print the logs for a container in a pod.
kubectl logspod.log – Output the logs for a pod into a file named ‘pod.log'.
kubectl logs --previous– View the logs for a previously failed pod.
8、Namespace 相关
kubectl create namespace– Create a namespace.
kubectl get namespace– List one or more namespaces.
kubectl describe namespace– Display the detailed state of one or more namespaces.
kubectl delete namespace– Delete a namespace.
kubectl edit namespace– Edit and update the definition of a namespace.
kubectl top namespace– Display Resource (CPU/Memory/Storage) usage for a namespace.
9、Nodes 相关
kubectl taint node– Update the taints on one or more nodes.
kubectl get node – List one or more nodes.
kubectl delete node– Delete a node or multiple nodes.
kubectl top node– Display Resource usage (CPU/Memory/Storage) for nodes.
kubectl get pods -o wide | grep– Pods running on a node.
kubectl annotate node– Annotate a node.
kubectl cordon node– Mark a node as unschedulable.
kubectl uncordon node– Mark node as schedulable.
kubectl drain node– Drain a node in preparation for maintenance.
kubectl label node – Add or update the labels of one or more nodes.
10、Pods 操作相关
kubectl get pod – List one or more pods.
kubectl get pods --sort-by='.status.containerStatuses.restartCount' – List pods Sorted by Restart Count.
kubectl get pods --field-selector=status.phase=Running – Get all running pods in the namespace.
kubectl delete pod– Delete a pod.
kubectl describe pod– Display the detailed state of a pods.
kubectl create pod– Create a pod.
kubectl exec-c– Execute a command against a container in a pod. Read more: Using Kubectl Exec: Connect to Your Kubernetes Containers
kubectl exec -it/bin/sh – Get an interactive shell on a single-container pod.
kubectl top pod – Display Resource usage (CPU/Memory/Storage) for pods.
kubectl annotate pod– Add or update the annotations of a pod.
kubectl label podsnew-label= – Add or update the label of a pod.
kubectl get pods --show-labels – Get pods and show labels.
kubectl port-forward : – Listen on a port on the local machine and forward to a port on a specified pod.
11、Replication Controller 相关
kubectl get rc – List the replication controllers.
kubectl get rc --namespace=”” – List the replication controllers by namespace.
12、ReplicaSets 相关
kubectl get replicasets – List ReplicaSets.
kubectl describe replicasets– Display the detailed state of one or more ReplicaSets.
kubectl scale --replicas= – Scale a ReplicaSet.
13、Sercrets 相关
kubectl create secret – Create a secret.
kubectl get secrets – List secrets.
kubectl describe secrets – List details about secrets.
kubectl delete secret– Delete a secret.
14、Services 相关
kubectl get services – List one or more services.
kubectl describe services – Display the detailed state of a service.
kubectl expose deployment – Expose a replication controller, service, deployment, or pod as a new Kubernetes service.
kubectl edit services – Edit and update the definition of one or more services
15、Service Account相关
kubectl get serviceaccounts – List service accounts.
kubectl describe serviceaccounts – Display the detailed state of one or more service accounts.
kubectl replace serviceaccount – Replace a service account.
kubectl delete serviceaccount– Delete a service account
16、StatefulSets 相关
kubectl get statefulset – List StatefulSet
kubectl delete statefulset/ --cascade=false – Delete StatefulSet only (not pods).
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