Delete complete k8s jobs everyday

cleanup-completed-jobs.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    name: job-cleaner
  name: job-cleaner
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  labels:
    name: job-admin
  name: job-admin
rules:
  - apiGroups: ['*']
    resources: ['cronjob', 'cronjobs']
    verbs: ['*']
  - nonResourceURLs: ['*']
    verbs: ['*']
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  labels:
    name: job-cleaner
  name: job-cleaner
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: job-admin
subjects:
  - kind: ServiceAccount
    name: job-cleaner
    namespace: default
---
apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: cleanup-completed-jobs
spec:
  schedule: "0 20 * * *" # 04:00 at JST
  concurrencyPolicy: Forbid
  startingDeadlineSeconds: 60
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 3
  suspend: false
  jobTemplate:
    spec:
      parallelism: 1
      backoffLimit: 1
      template:
        spec:
          serviceAccountName: job-cleaner
          restartPolicy: Never
          containers:
          - image: bitnami/kubectl:1.14
            name: job-cleaner
            command: ["/bin/sh"]
            args: ["-c", "kubectl delete jobs --field-selector status.successful=1"]