2025年查看k8s版本（k8s查看pod yaml）

编程日记 • 2025-02-09 18:17 • 阅读 38
常见的管理Pod的控制器：Replicaset、Deployment、Job、CronJob、Daemonset、Statefulset。
控制器管理的Pod可以确保Pod始终维持在指定的副本数运行。
如，通过Deployment管理Pod
常见的管理Pod的控制器：Replicaset、Deployment、Job、CronJob、Daemonset、Statefulset。
控制器管理的Pod可以确保Pod始终维持在指定的副本数运行。
如，通过Deployment管理Pod

[root@k8s01 ~]# cat nginx-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-test
  labels:
    app: nginx-deploy
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: my-nginx
        image: nginx:latest
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
#更新资源清单文件     
kubectl apply -f nginx-deploy.yaml
#查看Deployment
[root@k8s01 ~]# kubectl get deploy -l app=nginx-deploy
NAME         READY   UP-TO-DATE   AVAILABLE   AGE
nginx-test   2/2     2            2           86s
#查看Replicaset
[root@k8s01 ~]# kubectl get rs -l app=nginx
NAME                    DESIRED   CURRENT   READY   AGE
nginx-test-7d464f958f   2         2         2       2m26s
#查看pod
[root@k8s01 ~]# kubectl get pods -o wide -l app=nginx
NAME                          READY   STATUS    RESTARTS   AGE     IP               NODE    NOMINATED NODE   READINESS GATES
nginx-test-7d464f958f-d2fsj   1/1     Running   0          2m49s   10.244.236.134   k8s02   <none>           <none>
nginx-test-7d464f958f-p4cd2   1/1     Running   0          2m49s   10.244.236.133   k8s02   <none>           <none>
#删除
kubectl delete pods nginx-test-7d464f958f-d2fsj
[root@k8s01 ~]# kubectl get pods -o wide -l app=nginx
NAME                          READY   STATUS    RESTARTS   AGE    IP               NODE    NOMINATED NODE   READINESS GATES
nginx-test-7d464f958f-p4cd2   1/1     Running   0          4m6s   10.244.236.133   k8s02   <none>           <none>
nginx-test-7d464f958f-t5lbd   1/1     Running   0          6s     10.244.236.135   k8s02   <none>           <none>

#发现重新创建一个新的pod
通过上面可以发现通过deployment管理的pod，可以确保pod始终维持在指定副本数量
2025年查看k8s版本（k8s查看pod yaml）

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