apiVersion: batch/v1
kind: CronJob
metadata:
  name: postgres-backup
  namespace: api
spec:
  schedule: "0 2 * * *"  # Daily at 2 AM
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 3
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: postgres-backup
            image: postgres:14-alpine
            command:
            - /bin/bash
            - -c
            - |
              set -e
              BACKUP_DIR="/backups/postgres"
              DB_NAME="${DB_NAME:-sankofa}"
              TIMESTAMP=$(date +%Y%m%d_%H%M%S)
              BACKUP_FILE="${BACKUP_DIR}/${DB_NAME}_${TIMESTAMP}.sql"
              
              mkdir -p "$BACKUP_DIR"
              
              echo "Starting backup..."
              pg_dump -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" \
                -F p -f "$BACKUP_FILE"
              
              echo "Compressing backup..."
              gzip "$BACKUP_FILE"
              
              echo "Cleaning up backups older than 7 days..."
              find "$BACKUP_DIR" -name "${DB_NAME}_*.sql.gz" -type f -mtime +7 -delete
              
              echo "Backup completed: ${BACKUP_FILE}.gz"
            env:
            - name: DB_HOST
              valueFrom:
                secretKeyRef:
                  name: db-credentials
                  key: host
            - name: DB_PORT
              value: "5432"
            - name: DB_USER
              valueFrom:
                secretKeyRef:
                  name: db-credentials
                  key: username
            - name: DB_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: db-credentials
                  key: password
            - name: DB_NAME
              value: "sankofa"
            volumeMounts:
            - name: backup-storage
              mountPath: /backups
          restartPolicy: OnFailure
          volumes:
          - name: backup-storage
            persistentVolumeClaim:
              claimName: postgres-backup-pvc
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: postgres-backup-pvc
  namespace: api
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 100Gi
  storageClassName: standard