K8S之Pod升级和回滚

wyx学习k8s

已于 2024-04-07 08:26:43 修改

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分类专栏： K8S学习文章标签： kubernetes docker

于 2024-03-27 16:20:39 首次发布

本文链接：https://blog.youkuaiyun.com/qq_37278522/article/details/137075296

本文详细描述了如何在Kubernetes中创建和管理Deployment，包括创建nginx-deployment的Pod，升级镜像至1.9.1，以及部署的回滚操作，展示了Rereate和RollingUpdate两种更新策略的区别。

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1.Deployment的升级

1.1 我们创建nginx-deployment的pod


#1.创建yaml文件
[root@k8s-master k8s-yaml]# cat nginx-deployment.yaml 
apiVersion : apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.7.9
        ports:
        - containerPort: 80

#2.创建pod
[root@k8s-master k8s-yaml]# kubectl create -f nginx-deployment.yaml 
deployment.apps/nginx-deployment created
#3.查看pod
[root@k8s-master k8s-yaml]# kubectl get po -o wide
NAME                              READY   STATUS    RESTARTS   AGE    IP              NODE         NOMINATED NODE   READINESS GATES
nginx-deployment-f7599d4c-2lj8v   1/1     Running   0          81s    172.18.58.194   k8s-node02   <none>           <none>
nginx-deployment-f7599d4c-z2d9d   1/1     Running   0          7m1s