Kubernetes使用CronJob运行作业

问题描述

有没有一种方法可以使用CronJob资源运行现有的Job.在CronJob Spec模板中，我们可以使用标签应用选择器.像这样:

Is there a way through which I can run an existing Job using CronJob resource.In CronJob Spec template can we apply a selector using labels. Something like this:

工作规范:(链接到工作文档)

apiVersion: batch/v1
kind: Job
label:
  name: pi
spec:
  template:
    spec:
      containers:
      - name: pi
        image: perl
        command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
      restartPolicy: Never
  backoffLimit: 4

Cron Spec:

Cron Spec:

apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: pi-cron
spec:
  schedule: "*/1 * * * *"
  jobTemplate:
    spec:
      labelSelector:
        name: pi # refer to the job created above

我碰到了这个.我想尝试与此相反. Create-Job-From-Cronjob

I came across this. I want to try inverse of this.Create-Job-From-Cronjob

推荐答案

不，您不能以所需的方式执行此操作. kubectl仅允许您基于cronjob创建作业，反之亦然.

No, you can not do this in the way you want. kubectl only allows you to create jobs based on cronjob, but not vise-versa.

 kubectl create job NAME [--image=image --from=cronjob/name] -- [COMMAND] [args...] [flags] [options]

现在可用于kubectl create的命令:

Available commands right now for kubectl create:

  clusterrole         Create a ClusterRole.
  clusterrolebinding  Create a ClusterRoleBinding for a particular ClusterRole
  configmap           Create a configmap from a local file, directory or literal value
  deployment          Create a deployment with the specified name.
  job                 Create a job with the specified name.
  namespace           Create a namespace with the specified name
  poddisruptionbudget Create a pod disruption budget with the specified name.
  priorityclass       Create a priorityclass with the specified name.
  quota               Create a quota with the specified name.
  role                Create a role with single rule.
  rolebinding         Create a RoleBinding for a particular Role or ClusterRole
  secret              Create a secret using specified subcommand
  service             Create a service using specified subcommand.
  serviceaccount      Create a service account with the specified name

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