DaemonSet控制器

DaemonSet示例

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: daemonset
  labels:
    app: daemonset
spec:
  selector:
    matchLabels:
      name: daemonset
  template:
    metadata:
      labels:
        name: daemonset
    spec:
      containers:
      - name: nginx
        image: nginx

保证每个nod上分配一个pod(除了主节点外)

Job

示例

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

查看日志

[root@master yaml]# kubectl get po
NAME       READY   STATUS      RESTARTS   AGE
pi-nq4qr   0/1     Completed   0          31s
[root@master yaml]# kubectl logs pi-nq4qr 
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989380952572010654858632788659361533818279682303019520353018529689957736225994138912497217752834791315155748572424541506959508295331168617278558890750983817546374649393192550604009277016711390098488240128583616035637076601047101819429555961989467678374494482553797747268471040475346462080466842590694912933136770289891521047521620569660240580381501935112533824300355876402474964732639141992726042699227967823547816360093417216412199245863150302861829745557067498385054945885869269956909272107975093029553211653449872027559602364806654991198818347977535663698074265425278625518184175746728909777727938000816470600161452491921732172147723501414419735685481613611573525521334757418494684385233239073941433345477624168625189835694855620992192221842725502542568876717904946016534668049886272327917860857843838279679766814541009538837863609506800642251252051173929848960841284886269456042419652850222106611863067442786220391949450471237137869609563643719172874677646575739624138908658326459958133904780275901

再查看状态(显示此任务已经完成)

[root@master yaml]# kubectl get po
NAME       READY   STATUS      RESTARTS   AGE
pi-nq4qr   0/1     Completed   0          76s

cronjob

cronjob.png

never永不重启 onfailure只有失败才重启

cronjob1.png

cronjob2.png

示例

apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: hello
spec:
  schedule: '*/1 * * * *'
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: hello
            image: busybox
            args:
            - /bin/sh
            - -c
            - date; echo Hello Hello
          restartPolicy: OnFailure

查看job

[root@master yaml]# kubectl get job
NAME               COMPLETIONS   DURATION   AGE
hello-1576227060   0/1           34s        34s

查看cronjob信息

[root@master yaml]# kubectl get cronjob
NAME    SCHEDULE      SUSPEND   ACTIVE   LAST SCHEDULE   AGE
hello   */1 * * * *   False     1        11s             7m41s

查看日志

[root@master yaml]# kubectl logs hello-1576227060-l9r84 
Fri Dec 13 08:51:44 UTC 2019
Hello Hello