Kubernetes作业每分钟删除一个Pod

本文介绍了Kubernetes作业每分钟删除一个Pod的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想创建一个Job，以便每隔一分钟或创建后的任何时间杀死以下Pod.

I'd like to create a Job to kill the following pod every single minute or any time when is created.

我的测试平台是:

apiVersion: v1 kind: Pod metadata: name: myapp-pod labels: app: myapp spec: containers: - name: myapp-container image: busybox command: ['sh', '-c', 'echo Hello && sleep 3600']

有可能这样做吗?

推荐答案

是的，您可以在集群中删除带有kubectl的Pod. 首先，您需要创建一组RBAC(基于角色的访问控制)对象. 这是示例.

Yes, you can delete the pods with kubectl within the cluster. First, you need to create a set of RBAC(Role-based access control) object. Here is the sample.

apiVersion: v1 kind: ServiceAccount metadata: name: test # this is service account for binding the pod --- apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: name: test # This defines a role and what API it can access rules: - apiGroups: [""] resources: ["pods"] verbs: ["delete", "get", "list"] --- apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: name: test # This will bind the role and service account subjects: - kind: ServiceAccount name: test roleRef: kind: Role name: test apiGroup: rbac.authorization.k8s.io

这些对象将定义适当的RABC规则，以便创建的Pod可以与Kubernetes的相应API进行交互. 然后，您可以使用这样的Cronjob类型定义Job.

These objects will define a proper RABC rule so that the pod created can interact with Kubernetes's corresponding API. Then, you can define your Job with a Cronjob type like this.

apiVersion: batch/v1beta1 kind: CronJob metadata: name: kill-pod spec: schedule: "*/1 * * * *" jobTemplate: spec: template: spec: serviceAccountName: test containers: - name: kill-pod image: bitnami/kubectl:latest command: - kubectl args: - delete - pod - sth restartPolicy: OnFailure