Linux - K8S - Job & CronJob
2021/12/11 7:16:57
本文主要是介绍Linux - K8S - Job & CronJob，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
[00:10:21 root@master1 controller]#cat 13-controller-job-single.yaml
apiVersion: batch/v1
kind: Job
metadata:
name: job-single
spec:
template:
metadata:
name: job-single
spec:
restartPolicy: Never
containers:
- name: job-single
image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
command: [ "/bin/sh", "-c", "for i in 9 8 7 6 5 4 3 2 1; do echo $i; sleep 2; done" ]
[00:10:23 root@master1 controller]#kubectl apply -f 13-controller-job-single.yaml
job.batch/job-single created
[00:10:38 root@master1 controller]#kubectl get jobs.batch
NAME COMPLETIONS DURATION AGE
job-single 0/1 4s 4s
[00:10:42 root@master1 controller]#kubectl describe job job-single
Name: job-single
Namespace: default
Selector: controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
Labels: controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
job-name=job-single
Annotations: <none>
Parallelism: 1
Completions: 1
Completion Mode: NonIndexed
Start Time: Sat, 11 Dec 2021 00:10:38 +0800
Pods Statuses: 1 Running / 0 Succeeded / 0 Failed
Pod Template:
Labels: controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
job-name=job-single
Containers:
job-single:
Image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
Port: <none>
Host Port: <none>
Command:
/bin/sh
-c
for i in 9 8 7 6 5 4 3 2 1; do echo $i; sleep 2; done
Environment: <none>
Mounts: <none>
Volumes: <none>
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal SuccessfulCreate 12s job-controller Created pod: job-single--1-jdrhn
[00:10:54 root@master1 controller]#kubectl describe job job-single
Name: job-single
Namespace: default
Selector: controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
Labels: controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
job-name=job-single
Annotations: <none>
Parallelism: 1
Completions: 1
Completion Mode: NonIndexed
Start Time: Sat, 11 Dec 2021 00:10:38 +0800
Completed At: Sat, 11 Dec 2021 00:10:58 +0800
Duration: 20s
Pods Statuses: 0 Running / 1 Succeeded / 0 Failed
Pod Template:
Labels: controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
job-name=job-single
Containers:
job-single:
Image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
Port: <none>
Host Port: <none>
Command:
/bin/sh
-c
for i in 9 8 7 6 5 4 3 2 1; do echo $i; sleep 2; done
Environment: <none>
Mounts: <none>
Volumes: <none>
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal SuccessfulCreate 32s job-controller Created pod: job-single--1-jdrhn
Normal Completed 12s job-controller Job completed
[00:11:10 root@master1 controller]#kubectl get job job-single -o wide
NAME COMPLETIONS DURATION AGE CONTAINERS IMAGES SELECTOR
job-single 1/1 20s 44s job-single 10.0.0.55:80/mykubernetes/pod_test:v0.2 controller-uid=051a3c20-2031-4ae8-ac79-71a76188062c
[00:11:22 root@master1 controller]#kubectl get pod
NAME READY STATUS RESTARTS AGE
job-single--1-jdrhn 0/1 Completed 0 65s
===============================================
[00:13:45 root@master1 controller]#cat 14-controller-job-multi-chuan.yaml
apiVersion: batch/v1
kind: Job
metadata:
name: job-multi-chuan
spec:
completions: 5
parallelism: 1
template:
spec:
containers:
- name: job-multi
image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
command: ["/bin/sh","-c","echo job; sleep 3"]
restartPolicy: OnFailure
[00:13:49 root@master1 controller]#kubectl apply -f 14-controller-job-multi-chuan.yaml
job.batch/job-multi-chuan created
[00:14:00 root@master1 controller]#kubectl get job job-multi-chuan -o wide
NAME COMPLETIONS DURATION AGE CONTAINERS IMAGES SELECTOR
job-multi-chuan 2/5 12s 12s job-multi 10.0.0.55:80/mykubernetes/pod_test:v0.2 controller-uid=87237cab-d4a0-430d-8d2e-4131ccdd3071
[00:14:21 root@master1 controller]#kubectl describe jobs.batch job-multi-chuan
Name: job-multi-chuan
Namespace: default
Selector: controller-uid=87237cab-d4a0-430d-8d2e-4131ccdd3071
Labels: controller-uid=87237cab-d4a0-430d-8d2e-4131ccdd3071
job-name=job-multi-chuan
Annotations: <none>
Parallelism: 1
Completions: 5
Completion Mode: NonIndexed
Start Time: Sat, 11 Dec 2021 00:14:00 +0800
Completed At: Sat, 11 Dec 2021 00:14:24 +0800
Duration: 24s
Pods Statuses: 0 Running / 5 Succeeded / 0 Failed
Pod Template:
Labels: controller-uid=87237cab-d4a0-430d-8d2e-4131ccdd3071
job-name=job-multi-chuan
Containers:
job-multi:
Image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
Port: <none>
Host Port: <none>
Command:
/bin/sh
-c
echo job; sleep 3
Environment: <none>
Mounts: <none>
Volumes: <none>
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal SuccessfulCreate 38s job-controller Created pod: job-multi-chuan--1-dx492
Normal SuccessfulCreate 33s job-controller Created pod: job-multi-chuan--1-52pks
Normal SuccessfulCreate 28s job-controller Created pod: job-multi-chuan--1-q454c
Normal SuccessfulCreate 23s job-controller Created pod: job-multi-chuan--1-hn5fd
Normal SuccessfulCreate 19s job-controller Created pod: job-multi-chuan--1-cx8bf
Normal Completed 14s job-controller Job completed
[00:14:38 root@master1 controller]#kubectl get pod
NAME READY STATUS RESTARTS AGE
job-multi-chuan--1-52pks 0/1 Completed 0 76s
job-multi-chuan--1-cx8bf 0/1 Completed 0 62s
job-multi-chuan--1-dx492 0/1 Completed 0 81s
job-multi-chuan--1-hn5fd 0/1 Completed 0 66s
job-multi-chuan--1-q454c 0/1 Completed 0 71s
===
[00:15:34 root@master1 controller]#cat 15-controller-job-multi-bing.yaml
apiVersion: batch/v1
kind: Job
metadata:
name: job-multi-bing
spec:
completions: 6
parallelism: 2
template:
spec:
containers:
- name: job-multi-bing
image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
command: ["/bin/sh","-c","echo job; sleep 3"]
restartPolicy: OnFailure
[00:15:37 root@master1 controller]#kubectl apply -f 15-controller-job-multi-bing.yaml
job.batch/job-multi-bing created
[00:15:46 root@master1 controller]#kubectl get job job-multi-bing
NAME COMPLETIONS DURATION AGE
job-multi-bing 2/6 6s 6s
[00:15:52 root@master1 controller]#kubectl get job job-multi-bing -o wide
NAME COMPLETIONS DURATION AGE CONTAINERS IMAGES SELECTOR
job-multi-bing 4/6 10s 10s job-multi-bing 10.0.0.55:80/mykubernetes/pod_test:v0.2 controller-uid=39afa349-4bc0-4b0f-a70a-4f02b0720548
[00:15:56 root@master1 controller]#kubectl describe jobs.batch job-multi-bing
Name: job-multi-bing
Namespace: default
Selector: controller-uid=39afa349-4bc0-4b0f-a70a-4f02b0720548
Labels: controller-uid=39afa349-4bc0-4b0f-a70a-4f02b0720548
job-name=job-multi-bing
Annotations: <none>
Parallelism: 2
Completions: 6
Completion Mode: NonIndexed
Start Time: Sat, 11 Dec 2021 00:15:46 +0800
Completed At: Sat, 11 Dec 2021 00:16:01 +0800
Duration: 15s
Pods Statuses: 0 Running / 6 Succeeded / 0 Failed
Pod Template:
Labels: controller-uid=39afa349-4bc0-4b0f-a70a-4f02b0720548
job-name=job-multi-bing
Containers:
job-multi-bing:
Image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
Port: <none>
Host Port: <none>
Command:
/bin/sh
-c
echo job; sleep 3
Environment: <none>
Mounts: <none>
Volumes: <none>
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal SuccessfulCreate 19s job-controller Created pod: job-multi-bing--1-djfw4
Normal SuccessfulCreate 19s job-controller Created pod: job-multi-bing--1-lslbr
Normal SuccessfulCreate 14s job-controller Created pod: job-multi-bing--1-wsgkr
Normal SuccessfulCreate 14s job-controller Created pod: job-multi-bing--1-n7sqd
Normal SuccessfulCreate 9s job-controller Created pod: job-multi-bing--1-j5qxw
Normal SuccessfulCreate 9s job-controller Created pod: job-multi-bing--1-55j2r
Normal Completed 4s job-controller Job completed
[00:16:05 root@master1 controller]#kubectl get pod
NAME READY STATUS RESTARTS AGE
job-multi-bing--1-55j2r 0/1 Completed 0 18s
job-multi-bing--1-djfw4 0/1 Completed 0 28s
job-multi-bing--1-j5qxw 0/1 Completed 0 18s
job-multi-bing--1-lslbr 0/1 Completed 0 28s
job-multi-bing--1-n7sqd 0/1 Completed 0 23s
job-multi-bing--1-wsgkr 0/1 Completed 0 23s
========================================
CrodJob
========================================
[00:16:57 root@master1 controller]#cat 16-controller-cronjob-simple.yaml
apiVersion: batch/v1
kind: CronJob
metadata:
name: cronjob
spec:
schedule: "*/2 * * * *"
jobTemplate:
spec:
template:
spec:
restartPolicy: OnFailure
containers:
- name: cronjob
image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
command: ["/bin/sh","-c","echo job"]
[00:17:01 root@master1 controller]#kubectl apply -f 16-controller-cronjob-simple.yaml
cronjob.batch/cronjob created
[00:19:22 root@master1 controller]#kubectl get pod
NAME READY STATUS RESTARTS AGE
cronjob-27319218--1-2c877 0/1 Completed 0 2m29s
cronjob-27319220--1-5jk6q 0/1 Completed 0 29s
===
[00:21:02 root@master1 controller]#cat 17-controller-cronjob-second.yaml
apiVersion: batch/v1
kind: CronJob
metadata:
name: cronjob-second
spec:
schedule: "* * * * *"
jobTemplate:
spec:
template:
spec:
restartPolicy: OnFailure
containers:
- name: cronjob
image: 10.0.0.55:80/mykubernetes/pod_test:v0.2
command: ["/bin/sh","-c","i=0; until [ $i -eq 60 ]; do sleep 10; let i=i+10; echo $i job; done"]
[00:21:03 root@master1 controller]#kubectl apply -f 17-controller-cronjob-second.yaml
cronjob.batch/cronjob-second created
[00:22:59 root@master1 controller]#kubectl get jobs.batch
NAME COMPLETIONS DURATION AGE
cronjob-second-27319222 0/1 60s 60s
cronjob-second-27319223 0/1 0s 0s
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