Cron から Kubernetes CronJob YAML 変換＆スペックジェネレーター 開発者ガイド

apiVersion: batch/v1
kind: CronJob
metadata:
  name: pg-nightly-backup
  namespace: default
  labels:
    app.kubernetes.io/name: pg-nightly-backup
    app.kubernetes.io/managed-by: toolsaa
spec:
  schedule: "0 2 * * *"
  timeZone: "UTC"
  concurrencyPolicy: Forbid
  suspend: false
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 1
  startingDeadlineSeconds: 120
  jobTemplate:
    spec:
      backoffLimit: 3
      activeDeadlineSeconds: 3600
      template:
        metadata:
          labels:
            app.kubernetes.io/name: pg-nightly-backup
        spec:
          restartPolicy: OnFailure
          containers:
          - name: pg-nightly-backup
            image: postgres:16-alpine
            imagePullPolicy: IfNotPresent
        command:
        - /bin/sh
        - -c
        args:
        - "pg_dumpall -h postgres.database.svc.cluster.local -U postgres | gzip > /tmp/backup.sql.gz"
            resources:
              requests:
                cpu: "100m"
                memory: "128Mi"
              limits:
                cpu: "500m"
                memory: "512Mi"
            securityContext:
              allowPrivilegeEscalation: false
              runAsNonRoot: true
              readOnlyRootFilesystem: false