apiVersion: batch/v1
kind: CronJob
metadata:
  name: planner-backup-minio
  namespace: planner
spec:
  schedule: "0 */6 * * *"  # every 6 hours
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 3
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: backup
            image: python:3.12-alpine
            command:
            - /bin/sh
            - -c
            - |
              apk add --no-cache curl >/dev/null 2>&1
              curl -sL https://dl.min.io/client/mc/release/linux-arm64/mc -o /usr/local/bin/mc
              chmod +x /usr/local/bin/mc
              mc alias set s3 http://minio.minio.svc:9000 admin HpYMIVH0WN79VkzF4L4z8Zx1
              TS=$(date +%Y%m%d_%H%M%S)
              # Backup main data
              mc cp /data/planner_data.json "s3/planner-backups/planner_${TS}.json"
              # Backup buddy data
              mc cp /data/sleep_buddy.json "s3/planner-backups/buddy_${TS}.json" 2>/dev/null || true
              # Keep only last 60 backups (10 days worth at 6h interval)
              mc ls s3/planner-backups/ --json | python3 -c "
              import sys, json
              files = []
              for line in sys.stdin:
                  d = json.loads(line)
                  if d.get('key','').startswith('planner_'):
                      files.append(d['key'])
              files.sort()
              for f in files[:-60]:
                  print(f)
              " | while read f; do mc rm "s3/planner-backups/$f"; done
              echo "Backup done: ${TS}"
            volumeMounts:
            - name: data
              mountPath: /data
              readOnly: true
          volumes:
          - name: data
            persistentVolumeClaim:
              claimName: planner-data
          restartPolicy: OnFailure