This directory contains comprehensive disaster recovery plans, business continuity strategies, and incident response procedures for the Katya project.

Disaster recovery (DR) and business continuity planning (BCP) are critical components of Katya's operational resilience. This documentation outlines strategies to minimize downtime, protect data, and ensure rapid recovery from various disaster scenarios.

• Recovery Time Objective (RTO): Maximum acceptable downtime

  • Critical systems: 4 hours
  • Important systems: 24 hours
  • Non-critical systems: 72 hours

• Recovery Point Objective (RPO): Maximum acceptable data loss

  • Critical data: 15 minutes
  • Important data: 1 hour
  • Non-critical data: 24 hours

• Hot Site: Fully configured standby environment (for critical systems)
• Warm Site: Partially configured environment with some hardware/software (for important systems)
• Cold Site: Basic infrastructure only, requires full setup (for non-critical systems)
• Cloud Recovery: Use cloud infrastructure for rapid recovery

1. User Messaging Service

   • Impact: Complete service outage affects all users
   • Recovery Priority: Critical (P1)
   • RTO: 4 hours
   • RPO: 15 minutes

2. Data Synchronization

   • Impact: Users cannot sync messages across devices
   • Recovery Priority: Critical (P1)
   • RTO: 4 hours
   • RPO: 15 minutes

3. Authentication Service

   • Impact: Users cannot log in or access encrypted content
   • Recovery Priority: Critical (P1)
   • RTO: 4 hours
   • RPO: 15 minutes

4. API Services

   • Impact: Third-party integrations fail
   • Recovery Priority: High (P2)
   • RTO: 24 hours
   • RPO: 1 hour

5. Analytics and Monitoring

   • Impact: Loss of operational visibility
   • Recovery Priority: Medium (P3)
   • RTO: 24 hours
   • RPO: 24 hours

Scenario: Complete loss of primary data center Probability: Medium Impact: Critical Response Plan:

1. Activate secondary data center
2. Redirect DNS to backup site
3. Restore from latest backup
4. Validate system functionality
5. Communicate with users

Scenario: Malicious encryption of data Probability: High Impact: Critical Response Plan:

1. Isolate affected systems
2. Activate incident response team
3. Assess damage and encryption scope
4. Restore from immutable backups
5. Implement additional security measures

Scenario: Accidental or malicious database damage Probability: Medium Impact: Critical Response Plan:

1. Stop all database write operations
2. Restore from point-in-time backup
3. Validate data integrity
4. Re-enable services gradually
5. Investigate root cause

Scenario: Loss of internet connectivity or network hardware failure Probability: Medium Impact: High Response Plan:

1. Activate backup network connections
2. Implement traffic routing changes
3. Use CDN for static content delivery
4. Communicate service status to users

Scenario: Accidental deletion or misconfiguration Probability: High Impact: Variable Response Plan:

1. Assess scope of error
2. Restore from backup if necessary
3. Implement configuration changes
4. Update procedures to prevent recurrence

Scenario: Earthquake, flood, or other natural disaster Probability: Low (location-dependent) Impact: Critical Response Plan:

1. Activate emergency operations center
2. Implement remote work procedures
3. Use cloud-based recovery infrastructure
4. Coordinate with emergency services

# Critical Systems Recovery Checklist
version: 1.0
last_updated: 2024-01-15

steps:
  - name: "Assess Situation"
    description: "Evaluate the scope and impact of the disaster"
    responsible: "Incident Response Team"
    time_estimate: "30 minutes"
    checklist:
      - Determine affected systems and services
      - Assess data loss and recovery requirements
      - Notify stakeholders and users
      - Activate incident response procedures

  - name: "Activate Recovery Site"
    description: "Bring up backup infrastructure"
    responsible: "Infrastructure Team"
    time_estimate: "2 hours"
    checklist:
      - Power on backup servers
      - Configure network connectivity
      - Validate hardware functionality
      - Update DNS records if necessary

  - name: "Restore Data"
    description: "Restore data from backups"
    responsible: "Database Team"
    time_estimate: "3 hours"
    checklist:
      - Identify latest clean backup
      - Initiate data restoration process
      - Validate data integrity
      - Perform consistency checks

  - name: "Restore Services"
    description: "Bring services back online"
    responsible: "DevOps Team"
    time_estimate: "2 hours"
    checklist:
      - Deploy application code
      - Configure service dependencies
      - Perform smoke tests
      - Enable user traffic gradually

  - name: "Validate Recovery"
    description: "Ensure full functionality"
    responsible: "QA Team"
    time_estimate: "1 hour"
    checklist:
      - Run comprehensive test suite
      - Validate user-facing functionality
      - Monitor system performance
      - Confirm data consistency

  - name: "Communicate Status"
    description: "Update stakeholders and users"
    responsible: "Communications Team"
    time_estimate: "30 minutes"
    checklist:
      - Update status page
      - Send user notifications
      - Provide stakeholder updates
      - Schedule post-mortem meeting

#!/bin/bash
# Database Recovery Script
# This script automates the database recovery process

set -e

# Configuration
BACKUP_DIR="/backups/database"
RECOVERY_DIR="/recovery/database"
LOG_FILE="/var/log/db_recovery.log"

# Logging function
log() {
    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE"
}

# Step 1: Stop application services
log "Stopping application services..."
systemctl stop katya-app
systemctl stop katya-api

# Step 2: Identify latest backup
LATEST_BACKUP=$(ls -t "$BACKUP_DIR"/*.sql.gz | head -1)
log "Using backup: $LATEST_BACKUP"

# Step 3: Create recovery directory
mkdir -p "$RECOVERY_DIR"
log "Created recovery directory: $RECOVERY_DIR"

# Step 4: Extract backup
log "Extracting backup..."
gunzip -c "$LATEST_BACKUP" > "$RECOVERY_DIR/backup.sql"

# Step 5: Restore database
log "Restoring database..."
mysql -u katya_user -p"$DB_PASSWORD" katya_db < "$RECOVERY_DIR/backup.sql"

# Step 6: Validate restoration
log "Validating restoration..."
mysql -u katya_user -p"$DB_PASSWORD" -e "USE katya_db; SELECT COUNT(*) FROM users;" > /dev/null

# Step 7: Start services
log "Starting application services..."
systemctl start katya-app
systemctl start katya-api

# Step 8: Run health checks
log "Running health checks..."
curl -f http://localhost:3000/health || exit 1

log "Database recovery completed successfully"

• Full Backup: Complete system backup (weekly)
• Incremental Backup: Changes since last backup (daily)
• Differential Backup: Changes since last full backup (daily)
• Snapshot Backup: Point-in-time system image (hourly for critical data)

• Primary Storage: On-site backup server
• Secondary Storage: Cloud storage (AWS S3, Azure Blob)
• Tertiary Storage: Off-site tape backup
• Immutable Storage: Write-once-read-many (WORM) storage for ransomware protection

• Incident Commander: Overall coordination
• Technical Lead: Technical decision making
• Communications Lead: Stakeholder communication
• Recovery Coordinator: Recovery execution
• Legal/Compliance: Regulatory compliance

1. Preparation: Train team, prepare tools and procedures
2. Identification: Detect and assess security incidents
3. Containment: Stop the incident from spreading
4. Eradication: Remove root cause and vulnerabilities
5. Recovery: Restore systems and validate functionality
6. Lessons Learned: Document and improve processes

• Internal Communication: Slack channels for team coordination
• External Communication: Status page and social media updates
• User Communication: Email notifications and in-app messages
• Stakeholder Communication: Regular updates to key stakeholders
• Media Communication: Prepared statements for media inquiries

• Quarterly: Full disaster recovery test
• Monthly: Component-level recovery tests
• Weekly: Backup integrity validation
• Daily: Automated backup verification

• Tabletop Exercises: Discussion-based scenario planning
• Functional Tests: Individual component recovery testing
• Full-Scale Tests: Complete disaster recovery simulation
• Failover Tests: Automatic failover mechanism testing

• Backup Verification: Regular backup integrity checks
• Documentation Updates: Keep recovery procedures current
• Team Training: Regular incident response training
• Equipment Maintenance: Ensure backup systems are operational

• Redundancy: Multiple data centers and cloud regions
• Monitoring: 24/7 system and security monitoring
• Access Controls: Least privilege access and multi-factor authentication
• Regular Updates: Security patches and system updates
• Employee Training: Security awareness and incident response training

• Cyber Insurance: Coverage for cyber attacks and data breaches
• Business Interruption: Coverage for revenue loss during outages
• Data Recovery: Coverage for data restoration costs
• Legal Expenses: Coverage for incident response legal costs

• GDPR: Data protection and breach notification (72 hours)
• CCPA: California consumer privacy regulations
• SOX: Financial data protection and recovery
• HIPAA: Healthcare data protection (if applicable)

• Data Breach Notification: Notify affected users within required timeframe
• Regulatory Reporting: Report incidents to relevant authorities
• Contractual Obligations: Meet SLA commitments with customers
• Insurance Claims: Document incidents for insurance purposes

• MTTR (Mean Time to Recovery): Average time to restore services
• MTTD (Mean Time to Detection): Average time to detect incidents
• RTO Achievement: Percentage of incidents meeting RTO
• RPO Achievement: Percentage of incidents meeting RPO

• Critical: Immediate response required (service down)
• High: Urgent response needed (degraded performance)
• Medium: Response needed within hours
• Low: Response needed within days

• Infrastructure Monitoring: Prometheus, Grafana
• Application Monitoring: New Relic, DataDog
• Security Monitoring: SIEM systems, IDS/IPS
• Backup Monitoring: Automated backup verification

• Communication: Maintain communication with users and stakeholders
• Data Access: Ensure access to critical business data
• Operations: Continue core business operations
• Customer Support: Maintain customer service capabilities

• Remote Work: Enable work from alternative locations
• Cloud Migration: Use cloud services for business continuity
• Supplier Diversification: Multiple suppliers for critical services
• Process Documentation: Document critical processes and procedures

• Business Continuity Tests: Test continuity procedures
• Supplier Failover: Test switching to backup suppliers
• Remote Work Tests: Test remote work capabilities
• Communication Tests: Test emergency communication systems

# Automated Recovery Orchestrator
import boto3
import paramiko
import time

class DisasterRecovery:
    def __init__(self):
        self.ec2 = boto3.client('ec2')
        self.rds = boto3.client('rds')

    def initiate_recovery(self, disaster_type):
        """Initiate automated recovery based on disaster type"""
        if disaster_type == 'datacenter_failure':
            return self.recover_from_datacenter_failure()
        elif disaster_type == 'database_corruption':
            return self.recover_database()
        elif disaster_type == 'service_outage':
            return self.recover_service()

    def recover_from_datacenter_failure(self):
        """Recover from complete data center failure"""
        # Launch backup instances
        instances = self.launch_backup_instances()

        # Restore database from backup
        self.restore_database_from_backup()

        # Update DNS to point to backup site
        self.update_dns_records()

        # Validate recovery
        self.validate_recovery()

        return {
            'status': 'success',
            'instances': instances,
            'recovery_time': time.time()
        }

    def launch_backup_instances(self):
        """Launch backup EC2 instances"""
        response = self.ec2.run_instances(
            ImageId='ami-12345678',
            MinCount=2,
            MaxCount=2,
            InstanceType='t3.large',
            KeyName='katya-backup-key'
        )
        return response['Instances']

    def restore_database_from_backup(self):
        """Restore database from latest backup"""
        # Implementation for database restoration
        pass

    def update_dns_records(self):
        """Update DNS to point to backup infrastructure"""
        # Implementation for DNS updates
        pass

    def validate_recovery(self):
        """Validate that recovery was successful"""
        # Implementation for recovery validation
        pass

# Terraform configuration for disaster recovery infrastructure
terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 4.0"
    }
  }
}

# Backup VPC
resource "aws_vpc" "backup_vpc" {
  cidr_block = "10.1.0.0/16"
  tags = {
    Name = "katya-backup-vpc"
    Environment = "backup"
  }
}

# Backup EC2 instances
resource "aws_instance" "backup_app" {
  count         = 2
  ami           = var.backup_ami_id
  instance_type = "t3.large"
  vpc_security_group_ids = [aws_security_group.backup_sg.id]

  tags = {
    Name = "katya-backup-app-${count.index + 1}"
    Environment = "backup"
  }
}

# Backup RDS instance
resource "aws_db_instance" "backup_db" {
  allocated_storage    = 100
  engine              = "mysql"
  engine_version      = "8.0"
  instance_class      = "db.t3.medium"
  db_name             = "katya_backup"
  username            = var.db_username
  password            = var.db_password
  skip_final_snapshot = true

  tags = {
    Name = "katya-backup-db"
    Environment = "backup"
  }
}

• Run Books: Step-by-step recovery procedures
• Contact Lists: Emergency contact information
• Vendor Contacts: Third-party vendor contact details
• System Diagrams: Infrastructure and dependency diagrams

• Incident Response Training: Regular simulation exercises
• Technical Training: Recovery tool and procedure training
• Communication Training: Crisis communication training
• Cross-Training: Ensure multiple team members can perform critical tasks

• Root Cause Analysis: Identify underlying causes
• Timeline Reconstruction: Document incident timeline
• Impact Assessment: Evaluate actual vs. expected impact
• Lessons Learned: Document improvements and preventive measures

• Recovery Time Reduction: Streamline recovery procedures
• Automation Increase: Automate more recovery steps
• Monitoring Enhancement: Improve detection and alerting
• Training Improvement: Update training based on incidents

• Disaster Recovery Coordinator: dr@katya.rechain.network
• Incident Response Team: incident@katya.rechain.network
• Infrastructure Team: infra@katya.rechain.network
• Security Team: security@katya.rechain.network
• Communications Team: comms@katya.rechain.network

• Backup Procedures
• Incident Response Plan
• Business Continuity Plan
• Recovery Testing Procedures

This disaster recovery plan ensures Katya can quickly recover from various disaster scenarios while maintaining service availability and data integrity. Regular testing and updates are essential to maintain effectiveness.