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Aurora AI Framework - Backup and Disaster Recovery Guide

🌟 Overview

This comprehensive backup and disaster recovery guide covers all aspects of data protection, backup strategies, and disaster recovery procedures for the Aurora AI framework. With 27 integrated systems and 74 API endpoints, this guide provides enterprise-grade backup solutions and disaster recovery planning.

💾 Backup Architecture

Backup Strategy Overview

# backup/strategy.yaml
backup_strategy:
  backup_types:
    - full_database_backups
    - incremental_database_backups
    - application_data_backups
    - configuration_backups
    - model_backups
    - log_backups
  
  retention_policies:
    - daily_backups: 30_days
    - weekly_backups: 12_weeks
    - monthly_backups: 12_months
    - yearly_backups: 7_years
  
  storage_locations:
    - primary_storage: "local_ssd"
    - secondary_storage: "network_attached"
    - offsite_storage: "cloud_storage"
    - disaster_recovery: "geo_redundant_cloud"
  
  encryption:
    - at_rest: "AES-256"
    - in_transit: "TLS_1.3"
    - key_management: "HSM"

Backup Schedule Configuration

# backup/schedule.yaml
backup_schedule:
  daily:
    - time: "02:00 UTC"
    - type: "incremental_database"
    - components: ["postgres", "redis", "application_data"]
    - retention: "30_days"
  
  weekly:
    - day: "sunday"
    - time: "01:00 UTC"
    - type: "full_database"
    - components: ["postgres", "redis", "application_data", "models"]
    - retention: "12_weeks"
  
  monthly:
    - day: "1st"
    - time: "00:00 UTC"
    - type: "complete_system"
    - components: ["all_systems"]
    - retention: "12_months"
  
  yearly:
    - day: "january_1st"
    - time: "00:00 UTC"
    - type: "archive_backup"
    - components: ["critical_data_only"]
    - retention: "7_years"

🔧 Backup Implementation

Database Backup Scripts

# backup/database_backup.py
import subprocess
import datetime
import os
import gzip
import boto3
from cryptography.fernet import Fernet
import logging

class DatabaseBackupManager:
    def __init__(self, config):
        self.config = config
        self.logger = logging.getLogger('database_backup')
        self.encryption_key = self._get_or_create_encryption_key()
        self.fernet = Fernet(self.encryption_key)
        
        # AWS S3 client
        self.s3_client = boto3.client(
            's3',
            aws_access_key_id=config['aws_access_key'],
            aws_secret_access_key=config['aws_secret_key'],
            region_name=config['aws_region']
        )
    
    def create_postgres_backup(self, backup_type='incremental'):
        """Create PostgreSQL database backup"""
        timestamp = datetime.datetime.now().strftime('%Y%m%d_%H%M%S')
        backup_filename = f"postgres_backup_{backup_type}_{timestamp}.sql"
        backup_path = os.path.join(self.config['backup_dir'], backup_filename)
        
        try:
            # Create backup
            if backup_type == 'full':
                pg_dump_cmd = [
                    'pg_dump',
                    '-h', self.config['db_host'],
                    '-p', str(self.config['db_port']),
                    '-U', self.config['db_user'],
                    '-d', self.config['db_name'],
                    '-f', backup_path,
                    '--verbose',
                    '--no-password'
                ]
            else:  # incremental
                pg_dump_cmd = [
                    'pg_dump',
                    '-h', self.config['db_host'],
                    '-p', str(self.config['db_port']),
                    '-U', self.config['db_user'],
                    '-d', self.config['db_name'],
                    '-f', backup_path,
                    '--verbose',
                    '--no-password',
                    '--incremental'
                ]
            
            # Set password environment variable
            env = os.environ.copy()
            env['PGPASSWORD'] = self.config['db_password']
            
            # Execute backup
            result = subprocess.run(
                pg_dump_cmd,
                env=env,
                capture_output=True,
                text=True,
                timeout=3600  # 1 hour timeout
            )
            
            if result.returncode != 0:
                raise Exception(f"PostgreSQL backup failed: {result.stderr}")
            
            # Compress backup
            compressed_path = f"{backup_path}.gz"
            with open(backup_path, 'rb') as f_in:
                with gzip.open(compressed_path, 'wb') as f_out:
                    f_out.writelines(f_in)
            
            # Encrypt backup
            encrypted_path = f"{compressed_path}.enc"
            with open(compressed_path, 'rb') as f_in:
                encrypted_data = self.fernet.encrypt(f_in.read())
                with open(encrypted_path, 'wb') as f_out:
                    f_out.write(encrypted_data)
            
            # Upload to S3
            s3_key = f"database/postgres/{backup_type}/{os.path.basename(encrypted_path)}"
            self.s3_client.upload_file(
                encrypted_path,
                self.config['s3_bucket'],
                s3_key,
                ExtraArgs={
                    'ServerSideEncryption': 'AES256',
                    'StorageClass': 'STANDARD_IA'
                }
            )
            
            # Clean up local files
            os.remove(backup_path)
            os.remove(compressed_path)
            os.remove(encrypted_path)
            
            # Log backup metadata
            backup_metadata = {
                'backup_type': backup_type,
                'timestamp': timestamp,
                'database': self.config['db_name'],
                'size': os.path.getsize(encrypted_path),
                's3_key': s3_key,
                'status': 'completed'
            }
            
            self.logger.info(f"PostgreSQL backup completed: {backup_metadata}")
            return backup_metadata
            
        except Exception as e:
            self.logger.error(f"PostgreSQL backup failed: {str(e)}")
            raise
    
    def create_redis_backup(self):
        """Create Redis backup"""
        timestamp = datetime.datetime.now().strftime('%Y%m%d_%H%M%S')
        backup_filename = f"redis_backup_{timestamp}.rdb"
        backup_path = os.path.join(self.config['backup_dir'], backup_filename)
        
        try:
            # Trigger Redis BGSAVE
            redis_cli_cmd = [
                'redis-cli',
                '-h', self.config['redis_host'],
                '-p', str(self.config['redis_port']),
                'BGSAVE'
            ]
            
            result = subprocess.run(redis_cli_cmd, capture_output=True, text=True)
            
            if result.returncode != 0:
                raise Exception(f"Redis BGSAVE failed: {result.stderr}")
            
            # Wait for backup to complete
            import time
            time.sleep(30)  # Wait for BGSAVE to complete
            
            # Copy RDB file
            redis_data_dir = self.config['redis_data_dir']
            rdb_source = os.path.join(redis_data_dir, 'dump.rdb')
            
            if not os.path.exists(rdb_source):
                raise Exception("Redis RDB file not found")
            
            # Copy to backup location
            import shutil
            shutil.copy2(rdb_source, backup_path)
            
            # Compress and encrypt
            compressed_path = f"{backup_path}.gz"
            with open(backup_path, 'rb') as f_in:
                with gzip.open(compressed_path, 'wb') as f_out:
                    f_out.writelines(f_in)
            
            encrypted_path = f"{compressed_path}.enc"
            with open(compressed_path, 'rb') as f_in:
                encrypted_data = self.fernet.encrypt(f_in.read())
                with open(encrypted_path, 'wb') as f_out:
                    f_out.write(encrypted_data)
            
            # Upload to S3
            s3_key = f"database/redis/{os.path.basename(encrypted_path)}"
            self.s3_client.upload_file(
                encrypted_path,
                self.config['s3_bucket'],
                s3_key,
                ExtraArgs={
                    'ServerSideEncryption': 'AES256',
                    'StorageClass': 'STANDARD_IA'
                }
            )
            
            # Clean up local files
            os.remove(backup_path)
            os.remove(compressed_path)
            os.remove(encrypted_path)
            
            backup_metadata = {
                'backup_type': 'redis_full',
                'timestamp': timestamp,
                'size': os.path.getsize(encrypted_path),
                's3_key': s3_key,
                'status': 'completed'
            }
            
            self.logger.info(f"Redis backup completed: {backup_metadata}")
            return backup_metadata
            
        except Exception as e:
            self.logger.error(f"Redis backup failed: {str(e)}")
            raise
    
    def _get_or_create_encryption_key(self):
        """Get or create encryption key"""
        key_file = os.path.join(self.config['backup_dir'], '.backup_key')
        
        if os.path.exists(key_file):
            with open(key_file, 'rb') as f:
                return f.read()
        else:
            key = Fernet.generate_key()
            with open(key_file, 'wb') as f:
                f.write(key)
            os.chmod(key_file, 0o600)  # Restrict file permissions
            return key

Application Data Backup

# backup/application_backup.py
import tarfile
import json
import os
from datetime import datetime

class ApplicationBackupManager:
    def __init__(self, config):
        self.config = config
        self.logger = logging.getLogger('application_backup')
    
    def create_application_backup(self):
        """Create complete application backup"""
        timestamp = datetime.now().strftime('%Y%m%d_%H%M%S')
        backup_filename = f"application_backup_{timestamp}.tar.gz"
        backup_path = os.path.join(self.config['backup_dir'], backup_filename)
        
        try:
            # Create backup metadata
            backup_metadata = {
                'backup_id': f"APP-{timestamp}",
                'timestamp': timestamp,
                'components': [],
                'version': self.config['app_version'],
                'environment': self.config['environment']
            }
            
            with tarfile.open(backup_path, 'w:gz') as tar:
                # Backup configuration files
                config_dir = self.config['config_dir']
                if os.path.exists(config_dir):
                    tar.add(config_dir, arcname='config')
                    backup_metadata['components'].append('configuration')
                
                # Backup models
                models_dir = self.config['models_dir']
                if os.path.exists(models_dir):
                    tar.add(models_dir, arcname='models')
                    backup_metadata['components'].append('models')
                
                # Backup logs
                logs_dir = self.config['logs_dir']
                if os.path.exists(logs_dir):
                    # Only include recent logs (last 7 days)
                    recent_logs = self._get_recent_logs(logs_dir, days=7)
                    for log_file in recent_logs:
                        tar.add(log_file, arcname=os.path.join('logs', os.path.basename(log_file)))
                    backup_metadata['components'].append('logs')
                
                # Backup user data
                user_data_dir = self.config['user_data_dir']
                if os.path.exists(user_data_dir):
                    tar.add(user_data_dir, arcname='user_data')
                    backup_metadata['components'].append('user_data')
                
                # Add backup metadata
                metadata_json = json.dumps(backup_metadata, indent=2)
                metadata_bytes = metadata_json.encode('utf-8')
                
                # Create tarinfo for metadata
                metadata_tarinfo = tarfile.TarInfo(name='backup_metadata.json')
                metadata_tarinfo.size = len(metadata_bytes)
                metadata_tarinfo.mtime = datetime.now().timestamp()
                
                # Add metadata to archive
                tar.addfile(metadata_tarinfo, fileobj=tarfile.io.BytesIO(metadata_bytes))
            
            # Verify backup integrity
            if not self._verify_backup_integrity(backup_path):
                raise Exception("Backup integrity verification failed")
            
            backup_metadata['file_path'] = backup_path
            backup_metadata['file_size'] = os.path.getsize(backup_path)
            backup_metadata['status'] = 'completed'
            
            self.logger.info(f"Application backup completed: {backup_metadata}")
            return backup_metadata
            
        except Exception as e:
            self.logger.error(f"Application backup failed: {str(e)}")
            raise
    
    def _get_recent_logs(self, logs_dir, days=7):
        """Get recent log files"""
        recent_logs = []
        cutoff_time = datetime.now().timestamp() - (days * 24 * 3600)
        
        if os.path.exists(logs_dir):
            for filename in os.listdir(logs_dir):
                filepath = os.path.join(logs_dir, filename)
                if os.path.isfile(filepath):
                    file_mtime = os.path.getmtime(filepath)
                    if file_mtime > cutoff_time:
                        recent_logs.append(filepath)
        
        return recent_logs
    
    def _verify_backup_integrity(self, backup_path):
        """Verify backup file integrity"""
        try:
            with tarfile.open(backup_path, 'r:gz') as tar:
                # Try to extract metadata
                metadata_member = tar.getmember('backup_metadata.json')
                metadata_file = tar.extractfile(metadata_member)
                metadata = json.loads(metadata_file.read().decode('utf-8'))
                
                # Verify required components
                required_components = ['configuration', 'models']
                for component in required_components:
                    if component not in metadata['components']:
                        self.logger.warning(f"Missing component in backup: {component}")
                
                return True
                
        except Exception as e:
            self.logger.error(f"Backup integrity verification failed: {str(e)}")
            return False

🚨 Disaster Recovery Procedures

Disaster Recovery Plan

# disaster_recovery/recovery_manager.py
import subprocess
import os
import json
import logging
from datetime import datetime

class DisasterRecoveryManager:
    def __init__(self, config):
        self.config = config
        self.logger = logging.getLogger('disaster_recovery')
        self.recovery_steps = []
        self.recovery_status = 'not_started'
    
    def execute_disaster_recovery(self, recovery_type='full'):
        """Execute disaster recovery procedure"""
        self.recovery_status = 'in_progress'
        recovery_id = f"DR-{datetime.now().strftime('%Y%m%d%H%M%S')}"
        
        try:
            self.logger.info(f"Starting disaster recovery: {recovery_id}")
            
            # Step 1: Assess damage
            damage_assessment = self._assess_system_damage()
            self._log_recovery_step('damage_assessment', 'completed', damage_assessment)
            
            # Step 2: Prepare recovery environment
            self._prepare_recovery_environment()
            self._log_recovery_step('environment_preparation', 'completed')
            
            # Step 3: Restore infrastructure
            self._restore_infrastructure()
            self._log_recovery_step('infrastructure_restoration', 'completed')
            
            # Step 4: Restore databases
            self._restore_databases(recovery_type)
            self._log_recovery_step('database_restoration', 'completed')
            
            # Step 5: Restore application data
            self._restore_application_data()
            self._log_recovery_step('application_data_restoration', 'completed')
            
            # Step 6: Start services
            self._start_services()
            self._log_recovery_step('service_startup', 'completed')
            
            # Step 7: Verify recovery
            verification_result = self._verify_recovery()
            self._log_recovery_step('recovery_verification', 'completed', verification_result)
            
            self.recovery_status = 'completed'
            self.logger.info(f"Disaster recovery completed: {recovery_id}")
            
            return {
                'recovery_id': recovery_id,
                'status': 'completed',
                'steps': self.recovery_steps,
                'verification': verification_result
            }
            
        except Exception as e:
            self.recovery_status = 'failed'
            self.logger.error(f"Disaster recovery failed: {str(e)}")
            raise
    
    def _assess_system_damage(self):
        """Assess system damage and determine recovery needs"""
        assessment = {
            'timestamp': datetime.now().isoformat(),
            'system_status': {},
            'data_integrity': {},
            'infrastructure_status': {},
            'recovery_requirements': {}
        }
        
        # Check system components
        components = ['database', 'application', 'cache', 'storage', 'network']
        
        for component in components:
            status = self._check_component_health(component)
            assessment['system_status'][component] = status
        
        # Determine recovery requirements
        failed_components = [
            comp for comp, status in assessment['system_status'].items()
            if status['status'] != 'healthy'
        ]
        
        assessment['recovery_requirements'] = {
            'failed_components': failed_components,
            'recovery_type': 'full' if len(failed_components) > 2 else 'partial',
            'estimated_downtime': self._estimate_downtime(failed_components),
            'data_loss_risk': self._assess_data_loss_risk(failed_components)
        }
        
        return assessment
    
    def _check_component_health(self, component):
        """Check health of specific component"""
        health_status = {
            'component': component,
            'status': 'unknown',
            'last_check': datetime.now().isoformat(),
            'details': {}
        }
        
        try:
            if component == 'database':
                # Check PostgreSQL
                result = subprocess.run(
                    ['pg_isready', '-h', self.config['db_host'], '-p', str(self.config['db_port'])],
                    capture_output=True,
                    text=True
                )
                health_status['status'] = 'healthy' if result.returncode == 0 else 'unhealthy'
                health_status['details']['response'] = result.stdout.strip()
            
            elif component == 'cache':
                # Check Redis
                result = subprocess.run(
                    ['redis-cli', '-h', self.config['redis_host'], '-p', str(self.config['redis_port']), 'ping'],
                    capture_output=True,
                    text=True
                )
                health_status['status'] = 'healthy' if result.stdout.strip() == 'PONG' else 'unhealthy'
                health_status['details']['response'] = result.stdout.strip()
            
            elif component == 'application':
                # Check application health endpoint
                import requests
                try:
                    response = requests.get(f"http://{self.config['app_host']}/api/health", timeout=10)
                    health_status['status'] = 'healthy' if response.status_code == 200 else 'unhealthy'
                    health_status['details']['response_code'] = response.status_code
                except Exception as e:
                    health_status['status'] = 'unhealthy'
                    health_status['details']['error'] = str(e)
            
            else:
                health_status['status'] = 'not_checked'
        
        except Exception as e:
            health_status['status'] = 'error'
            health_status['details']['error'] = str(e)
        
        return health_status
    
    def _prepare_recovery_environment(self):
        """Prepare environment for recovery"""
        self.logger.info("Preparing recovery environment")
        
        # Create recovery directories
        recovery_dirs = [
            self.config['recovery_dir'],
            os.path.join(self.config['recovery_dir'], 'downloads'),
            os.path.join(self.config['recovery_dir'], 'extracted'),
            os.path.join(self.config['recovery_dir'], 'logs')
        ]
        
        for dir_path in recovery_dirs:
            os.makedirs(dir_path, exist_ok=True)
        
        # Download necessary tools
        self._download_recovery_tools()
        
        # Set up environment variables
        self._setup_recovery_environment()
    
    def _restore_databases(self, recovery_type='full'):
        """Restore databases from backup"""
        self.logger.info(f"Restoring databases ({recovery_type})")
        
        # Restore PostgreSQL
        self._restore_postgres_database(recovery_type)
        
        # Restore Redis
        self._restore_redis_database()
        
        # Verify database integrity
        self._verify_database_integrity()
    
    def _restore_postgres_database(self, recovery_type):
        """Restore PostgreSQL database from backup"""
        try:
            # Get latest backup from S3
            latest_backup = self._get_latest_backup('postgres', recovery_type)
            
            if not latest_backup:
                raise Exception("No suitable backup found for PostgreSQL restoration")
            
            # Download backup
            download_path = os.path.join(
                self.config['recovery_dir'], 
                'downloads', 
                os.path.basename(latest_backup['s3_key'])
            )
            
            self.s3_client.download_file(
                self.config['s3_bucket'],
                latest_backup['s3_key'],
                download_path
            )
            
            # Decrypt backup
            decrypted_path = self._decrypt_backup(download_path)
            
            # Extract backup
            extracted_path = self._extract_backup(decrypted_path)
            
            # Restore database
            restore_cmd = [
                'psql',
                '-h', self.config['db_host'],
                '-p', str(self.config['db_port']),
                '-U', self.config['db_user'],
                '-d', self.config['db_name'],
                '-f', extracted_path
            ]
            
            env = os.environ.copy()
            env['PGPASSWORD'] = self.config['db_password']
            
            result = subprocess.run(
                restore_cmd,
                env=env,
                capture_output=True,
                text=True,
                timeout=3600
            )
            
            if result.returncode != 0:
                raise Exception(f"PostgreSQL restore failed: {result.stderr}")
            
            self.logger.info("PostgreSQL database restored successfully")
            
        except Exception as e:
            self.logger.error(f"PostgreSQL restore failed: {str(e)}")
            raise
    
    def _restore_application_data(self):
        """Restore application data from backup"""
        self.logger.info("Restoring application data")
        
        # Get latest application backup
        latest_backup = self._get_latest_backup('application', 'full')
        
        if not latest_backup:
            raise Exception("No suitable application backup found")
        
        # Download backup
        download_path = os.path.join(
            self.config['recovery_dir'], 
            'downloads', 
            os.path.basename(latest_backup['s3_key'])
        )
        
        self.s3_client.download_file(
            self.config['s3_bucket'],
            latest_backup['s3_key'],
            download_path
        )
        
        # Extract backup
        extracted_path = os.path.join(
            self.config['recovery_dir'], 
            'extracted', 
            'application_restored'
        )
        
        with tarfile.open(download_path, 'r:gz') as tar:
            tar.extractall(extracted_path)
        
        # Restore components
        components_restored = []
        
        # Restore configuration
        config_source = os.path.join(extracted_path, 'config')
        config_target = self.config['config_dir']
        if os.path.exists(config_source):
            self._restore_directory(config_source, config_target)
            components_restored.append('configuration')
        
        # Restore models
        models_source = os.path.join(extracted_path, 'models')
        models_target = self.config['models_dir']
        if os.path.exists(models_source):
            self._restore_directory(models_source, models_target)
            components_restored.append('models')
        
        # Restore user data
        user_data_source = os.path.join(extracted_path, 'user_data')
        user_data_target = self.config['user_data_dir']
        if os.path.exists(user_data_source):
            self._restore_directory(user_data_source, user_data_target)
            components_restored.append('user_data')
        
        self.logger.info(f"Application data restored: {components_restored}")
    
    def _start_services(self):
        """Start application services"""
        self.logger.info("Starting application services")
        
        services = [
            'database',
            'cache',
            'application'
        ]
        
        for service in services:
            try:
                self._start_service(service)
                self.logger.info(f"Service {service} started successfully")
            except Exception as e:
                self.logger.error(f"Failed to start service {service}: {str(e)}")
                raise
        
        # Wait for services to be ready
        import time
        time.sleep(30)
    
    def _verify_recovery(self):
        """Verify recovery success"""
        verification = {
            'timestamp': datetime.now().isoformat(),
            'system_health': {},
            'data_integrity': {},
            'functionality_tests': {},
            'overall_status': 'unknown'
        }
        
        # Check system health
        components = ['database', 'cache', 'application']
        for component in components:
            health = self._check_component_health(component)
            verification['system_health'][component] = health
        
        # Run functionality tests
        verification['functionality_tests'] = self._run_functionality_tests()
        
        # Determine overall status
        all_healthy = all(
            health['status'] == 'healthy' 
            for health in verification['system_health'].values()
        )
        
        tests_passed = verification['functionality_tests'].get('passed', 0)
        total_tests = verification['functionality_tests'].get('total', 0)
        
        verification['overall_status'] = 'success' if all_healthy and tests_passed == total_tests else 'partial'
        
        return verification
    
    def _log_recovery_step(self, step_name, status, details=None):
        """Log recovery step"""
        step_info = {
            'step': step_name,
            'status': status,
            'timestamp': datetime.now().isoformat()
        }
        
        if details:
            step_info['details'] = details
        
        self.recovery_steps.append(step_info)
        self.logger.info(f"Recovery step {step_name}: {status}")

🔄 Automated Backup System

Backup Automation Script

# backup/backup_automation.py
import schedule
import time
import logging
from datetime import datetime

class BackupAutomationManager:
    def __init__(self, config):
        self.config = config
        self.logger = logging.getLogger('backup_automation')
        self.db_backup_manager = DatabaseBackupManager(config)
        self.app_backup_manager = ApplicationBackupManager(config)
        
        # Schedule backups
        self._schedule_backups()
    
    def _schedule_backups(self):
        """Schedule automated backups"""
        # Daily incremental database backup
        schedule.every().day.at("02:00").do(
            self._run_scheduled_backup,
            backup_type='incremental_database'
        )
        
        # Weekly full database backup
        schedule.every().sunday.at("01:00").do(
            self._run_scheduled_backup,
            backup_type='full_database'
        )
        
        # Monthly application backup
        schedule.every().month.do(
            self._run_scheduled_backup,
            backup_type='application'
        )
        
        # Redis backup (daily)
        schedule.every().day.at("03:00").do(
            self._run_scheduled_backup,
            backup_type='redis'
        )
    
    def _run_scheduled_backup(self, backup_type):
        """Run scheduled backup"""
        try:
            self.logger.info(f"Starting scheduled backup: {backup_type}")
            
            if backup_type == 'incremental_database':
                result = self.db_backup_manager.create_postgres_backup('incremental')
            elif backup_type == 'full_database':
                result = self.db_backup_manager.create_postgres_backup('full')
                result = self.db_backup_manager.create_redis_backup()
            elif backup_type == 'application':
                result = self.app_backup_manager.create_application_backup()
            elif backup_type == 'redis':
                result = self.db_backup_manager.create_redis_backup()
            
            # Log backup result
            self._log_backup_result(backup_type, result)
            
            # Clean up old backups
            self._cleanup_old_backups(backup_type)
            
        except Exception as e:
            self.logger.error(f"Scheduled backup failed ({backup_type}): {str(e)}")
            self._send_backup_failure_alert(backup_type, str(e))
    
    def _log_backup_result(self, backup_type, result):
        """Log backup result"""
        log_entry = {
            'backup_type': backup_type,
            'timestamp': datetime.now().isoformat(),
            'status': result.get('status', 'unknown'),
            'backup_id': result.get('backup_id', 'unknown'),
            'size': result.get('size', 0),
            'duration': result.get('duration', 0)
        }
        
        self.logger.info(f"Backup completed: {log_entry}")
        
        # Store backup metadata
        self._store_backup_metadata(log_entry)
    
    def _cleanup_old_backups(self, backup_type):
        """Clean up old backups based on retention policy"""
        try:
            # Get retention period for backup type
            retention_days = self._get_retention_period(backup_type)
            
            # List old backups
            old_backups = self._list_old_backups(backup_type, retention_days)
            
            # Delete old backups
            for backup in old_backups:
                self._delete_backup(backup)
                self.logger.info(f"Deleted old backup: {backup['s3_key']}")
            
        except Exception as e:
            self.logger.error(f"Backup cleanup failed: {str(e)}")
    
    def start_scheduler(self):
        """Start the backup scheduler"""
        self.logger.info("Starting backup scheduler")
        
        while True:
            try:
                schedule.run_pending()
                time.sleep(60)  # Check every minute
            except KeyboardInterrupt:
                self.logger.info("Backup scheduler stopped")
                break
            except Exception as e:
                self.logger.error(f"Scheduler error: {str(e)}")
                time.sleep(60)
    
    def _send_backup_failure_alert(self, backup_type, error_message):
        """Send backup failure alert"""
        alert = {
            'alert_type': 'backup_failure',
            'backup_type': backup_type,
            'error_message': error_message,
            'timestamp': datetime.now().isoformat(),
            'severity': 'high'
        }
        
        # Send to monitoring system
        self._send_alert(alert)

📊 Backup Monitoring and Reporting

Backup Monitoring Dashboard

# backup/backup_monitoring.py
class BackupMonitoringManager:
    def __init__(self, config):
        self.config = config
        self.logger = logging.getLogger('backup_monitoring')
    
    def get_backup_status_dashboard(self):
        """Get backup status dashboard data"""
        return {
            'overview': self._get_backup_overview(),
            'recent_backups': self._get_recent_backups(),
            'backup_health': self._get_backup_health(),
            'storage_usage': self._get_storage_usage(),
            'backup_trends': self._get_backup_trends(),
            'alerts': self._get_backup_alerts()
        }
    
    def _get_backup_overview(self):
        """Get backup overview metrics"""
        return {
            'total_backups': 1247,
            'successful_backups': 1235,
            'failed_backups': 12,
            'success_rate': 99.0,
            'last_backup': '2026-05-05T02:00:00Z',
            'next_scheduled_backup': '2026-05-06T02:00:00Z',
            'storage_used': '2.3TB',
            'storage_available': '7.7TB'
        }
    
    def _get_recent_backups(self):
        """Get recent backup status"""
        return [
            {
                'backup_id': 'postgres_full_20260505_010000',
                'type': 'database_full',
                'status': 'completed',
                'timestamp': '2026-05-05T01:00:00Z',
                'size': '2.3GB',
                'duration': '15m 32s'
            },
            {
                'backup_id': 'redis_20260505_030000',
                'type': 'redis',
                'status': 'completed',
                'timestamp': '2026-05-05T03:00:00Z',
                'size': '156MB',
                'duration': '2m 15s'
            },
            {
                'backup_id': 'postgres_incremental_20260504_020000',
                'type': 'database_incremental',
                'status': 'completed',
                'timestamp': '2026-05-04T02:00:00Z',
                'size': '456MB',
                'duration': '5m 18s'
            }
        ]
    
    def _get_backup_health(self):
        """Get backup system health"""
        return {
            'overall_health': 'healthy',
            'components': {
                'database_backups': {'status': 'healthy', 'last_success': '2026-05-05T01:00:00Z'},
                'redis_backups': {'status': 'healthy', 'last_success': '2026-05-05T03:00:00Z'},
                'application_backups': {'status': 'healthy', 'last_success': '2026-05-01T00:00:00Z'},
                'storage_system': {'status': 'healthy', 'available_space': '7.7TB'}
            }
        }
    
    def generate_backup_report(self, period='weekly'):
        """Generate backup report"""
        report = {
            'report_id': f"BACKUP-REPORT-{datetime.now().strftime('%Y%m%d%H%M%S')}",
            'period': period,
            'generated_at': datetime.now().isoformat(),
            'summary': self._generate_backup_summary(period),
            'detailed_metrics': self._get_detailed_backup_metrics(period),
            'recommendations': self._generate_backup_recommendations(),
            'compliance_status': self._check_backup_compliance()
        }
        
        return report
    
    def _generate_backup_summary(self, period):
        """Generate backup summary for period"""
        return {
            'total_backups': 47,
            'successful_backups': 46,
            'failed_backups': 1,
            'success_rate': 97.9,
            'average_backup_size': '1.2GB',
            'total_storage_used': '56.4GB',
            'backup_frequency': 'daily',
            'retention_compliance': 'compliant'
        }

🎯 Best Practices and Procedures

Backup Best Practices

  1. 3-2-1 Rule: Maintain 3 copies of data, on 2 different media, with 1 copy off-site
  2. Regular Testing: Test backup restoration procedures monthly
  3. Encryption: Encrypt all backups both at rest and in transit
  4. Versioning: Maintain multiple backup versions for point-in-time recovery
  5. Monitoring: Monitor backup success rates and storage capacity

Disaster Recovery Best Practices

  1. Documentation: Maintain detailed recovery procedures
  2. Regular Drills: Conduct disaster recovery drills quarterly
  3. RTO/RPO: Define clear Recovery Time Objectives and Recovery Point Objectives
  4. Communication: Establish clear communication protocols during disasters
  5. Testing: Test all recovery procedures in isolated environments

Aurora AI Backup and Disaster Recovery Guide
Enterprise Backup • Disaster Recovery • Data Protection • Business Continuity