The principle of kubernetes job

Job Examples:

Apiversion:batch/v1   #job的apiVersionkind: Job              #资源类型为jobmetadata:                Labels:    name:busybox  Name: Busyboxspec:  Template:    metadata:      name:busybox    Spec:      containers:        -Name:busybox          Image:myhub.mingyuanyun.com/library/busybox          command:            -sleep            -"      restartpolicy:never"  #什么情况下重启容器, the job can only be set to never and onfailure, generally set to never

Restartpolicy:never  #如果使用参数Never, the container does not succeed after it has been started creating a new container

Restartpolicy:onfailure  #如果使用参数OnFailure, the container starts unsuccessfully and does not create a new container, he will always restart

Kubectl apply-f Myjob.yaml

Kubectl Get Job

Kubectl Get pod--show-all

Kubectl logs BusyBox

Kubectl delete-f Myjob.yaml

Creating a parallel job:

APIVERSION:BATCH/V1   kind:job            metadata:                Labels:    name:busybox  Name:busyboxspec:
  Completions:6  #直到总共有6个pod成功执行  If you do not specify a default value of 1
  Parallelism:2   #一次启动2个pod来执行job  If you do not specify a default value of 1  Template:    metadata:      name:busybox    Spec:      containers:        -name:busybox          image:myhub.mingyuanyun.com/library/busybox          command:            - Sleep            -"Restartpolicy:never"        

　　

Timed job:

APIVERSION:BATCH/V2ALPHA1  #当前CronJob的apiVersionkind: cronjob            #当前类型CronJobmetadata:                name:testspec:  schedule: "*/1 * * * *"  #运行时间, format and Linux consistent  jobtemplate:  #job模板    Spec:      Template:         Spec:            containners:            -name:test              image:nginx              command: ["echo", "This is Test"]            Restartpolicy: OnFailure

　　

Needs to be added in the Kube-aoiservier configuration file

Kubectl api-version #查看当前所有api-version Support BATCH/V2ALPHA1

Kubectl Get Cronjob

The principle of kubernetes job