基于k8s的ES集群定期删除索引

apiVersion: batch/v1beta1

kind: CronJob

metadata:

 name: elasticsearch

 namespace: elasticsearch

 labels:

   app.kubernetes.io/name: elasticsearch

spec:

  successfulJobsHistoryLimit: 10

  failedJobsHistoryLimit: 10

  concurrencyPolicy: Forbid #禁止并发运行

  schedule: "* * * * *"

  jobTemplate: #运行一个job

    spec:

      template:

        metadata:

          name: del-es-index-cronjob

        spec:

          restartPolicy: OnFailure

          containers:

          - name: curl-es

            image: harbor.xxxx.com/base_image/alpine-date-curl

            command:

            - "/bin/sh"

            - "-c"

            - >

              curl -X DELETE http://elasticsearch:9200/*`date +%Y.%m.%d -d "-7 days"`?pretty

查看cronjob

$ kubectl get cronjob -n elasticsearch

NAME            SCHEDULE    SUSPEND   ACTIVE   LAST SCHEDULE   AGE

elasticsearch   * * * * *   False     0        <none>          11s

　　

查看运行的jobs

$ kubectl get jobs -n elasticsearch

NAME                       DESIRED   SUCCESSFUL   AGE

elasticsearch-1552553820   1         1            2m

elasticsearch-1552553880   1         1            1m

elasticsearch-1552553940   1         1            46s

　　

查看jobs执行的情况

$ pods=$(kubectl get pods --selector=job-name=elasticsearch-1552553820  --output=jsonpath={.items..metadata.name} -n elasticsearch)

$ echo $pods

elasticsearch-1552553820-6cb4r

$ kubectl logs elasticsearch-1552553820-6cb4r -n elasticsearch

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current

                                 Dload  Upload   Total   Spent    Left  Speed

{

  "acknowledged" : true

}

100    28  100    28    0     0     10      0  0:00:02  0:00:02 --:--:--    10