---
name: backup-disaster-recovery
description: >
  Implement backup strategies, disaster recovery plans, and data restoration
  procedures for protecting critical infrastructure and data.
---

# Backup and Disaster Recovery

## Table of Contents

- [Overview](#overview)
- [When to Use](#when-to-use)
- [Quick Start](#quick-start)
- [Reference Guides](#reference-guides)
- [Best Practices](#best-practices)

## Overview

Design and implement comprehensive backup and disaster recovery strategies to ensure data protection, business continuity, and rapid recovery from infrastructure failures.

## When to Use

- Data protection and compliance
- Business continuity planning
- Disaster recovery planning
- Point-in-time recovery
- Cross-region failover
- Data migration
- Compliance and audit requirements
- Recovery time objective (RTO) optimization

## Quick Start

Minimal working example:

```yaml
# postgres-backup-cronjob.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: backup-script
  namespace: databases
data:
  backup.sh: |
    #!/bin/bash
    set -euo pipefail

    BACKUP_DIR="/backups/postgresql"
    RETENTION_DAYS=30
    DB_HOST="${POSTGRES_HOST}"
    DB_PORT="${POSTGRES_PORT:-5432}"
    DB_USER="${POSTGRES_USER}"
    DB_PASSWORD="${POSTGRES_PASSWORD}"

    export PGPASSWORD="$DB_PASSWORD"

    # Create backup directory
    mkdir -p "$BACKUP_DIR"

    # Full backup
    BACKUP_FILE="$BACKUP_DIR/full-$(date +%Y%m%d-%H%M%S).sql"
// ... (see reference guides for full implementation)
```

## Reference Guides

Detailed implementations in the `references/` directory:

| Guide | Contents |
|---|---|
| [Database Backup Configuration](references/database-backup-configuration.md) | Database Backup Configuration |
| [Disaster Recovery Plan Template](references/disaster-recovery-plan-template.md) | Disaster Recovery Plan Template |
| [Backup and Restore Script](references/backup-and-restore-script.md) | Backup and Restore Script |
| [Cross-Region Failover](references/cross-region-failover.md) | Cross-Region Failover |

## Best Practices

### ✅ DO

- Perform regular backup testing
- Use multiple backup locations
- Implement automated backups
- Document recovery procedures
- Test failover procedures regularly
- Monitor backup completion
- Use immutable backups
- Encrypt backups at rest and in transit

### ❌ DON'T

- Rely on a single backup location
- Ignore backup failures
- Store backups with production data
- Skip testing recovery procedures
- Over-compress backups beyond recovery speed needs
- Forget to verify backup integrity
- Store encryption keys with backups
- Assume backups are automatically working