This repository contains a production-grade Proof of Concept (POC) for migrating an on-premises MySQL database to AWS RDS Aurora MySQL. The project implements industry best practices for database migration, infrastructure as code, and continuous integration/deployment.
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β On-Premises β β AWS Services β β GitHub CI β
β MySQL DB β β β β β
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β β β
β β β
βΌ βΌ βΌ
βββββββββββββββββββ βββββββββββββββββββ βββββββββββββββββββ
β Flyway Schema β β AWS RDS Aurora β β GitHub Actions β
β Migration β β MySQL β β Workflows β
ββββββββββ¬βββββββββ ββββββββββ¬βββββββββ ββββββββββ¬βββββββββ
β β β
β β β
βΌ βΌ βΌ
βββββββββββββββββββ βββββββββββββββββββ βββββββββββββββββββ
β Data Migration β β Infrastructure β β Verification & β
β Pipeline β β (Terraform) β β Rollback β
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ecommerce-db-migration-poc/
βββ .github/
β βββ workflows/
β βββ ci.yml # Continuous Integration pipeline
β βββ cd.yml # Continuous Deployment pipeline
βββ terraform/
β βββ environments/
β β βββ dev/ # Development environment configuration
β βββ modules/
β β βββ rds/ # RDS Aurora module
β β βββ vpc/ # VPC module
β β βββ security/ # Security groups and IAM
β βββ provider.tf # AWS provider configuration
β βββ backend.tf # Terraform state backend
βββ db/
β βββ migrations/
β β βββ V1.0.0__initial_schema.sql
β β βββ V1.0.1__add_index_and_trigger.sql
β βββ scripts/
β βββ validation/ # Data validation scripts
β βββ monitoring/ # Migration monitoring scripts
βββ docs/
βββ architecture.md # Detailed architecture documentation
βββ migration-guide.md # Migration process documentation
- Terraform (v1.5.0)
- Modular infrastructure design
- State management with remote backend
- Environment-specific configurations
- Flyway (v9.22.3)
- Version-controlled database migrations
- Repeatable migrations
- Schema and data migration support
- GitHub Actions
- Automated testing and validation
- Infrastructure deployment
- Database migration orchestration
- Rollback mechanisms
- AWS RDS Aurora MySQL
- High availability
- Automated backups
- Point-in-time recovery
- AWS DMS
- Continuous data replication
- Change data capture
- Minimal downtime migration
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β Pull Request β
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β
βΌ
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β CI Pipeline (ci.yml) β
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β Terraform β Database β Security β
β Validation β Migration β Scanning β
β - Format β Validation β - tfsec β
β - Init β - Schema β - tflint β
β - Validate β - Data β β
β - Plan β β β
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β β β
βΌ βΌ βΌ
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β CD Pipeline (cd.yml) β
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β Pre-deployment β Deployment β Verification β
β - Environment β - Infrastructure β - Data Integrity β
β Validation β - Database β - Constraints β
β - Connectivity β Migration β - Smoke Tests β
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β β β
βΌ βΌ βΌ
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β Rollback Pipeline β
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β Database β Infrastructure β Verification β
β Restore β Rollback β - Status Check β
β - Backup β - State β - Health Check β
β - Data β Restoration β β
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- Checksum verification
- Row count validation
- Constraint verification
- Data type compatibility checks
- Batch processing for large tables
- Parallel migration for independent tables
- Progress tracking and reporting
- Performance monitoring
- Encrypted data in transit and at rest
- Role-based access control
- Audit logging
- Compliance checks
- Comprehensive error handling
- Automatic retry mechanisms
- Point-in-time recovery
- Transaction-level rollback
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Prerequisites
# Required tools - Terraform >= 1.5.0 - Flyway >= 9.22.3 - AWS CLI - MySQL Client
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Environment Setup
# Clone the repository git clone https://github.com/pxkundu/ecommerce-db-migration-poc.git cd ecommerce-db-migration-poc # Configure AWS credentials aws configure # Initialize Terraform cd terraform/environments/dev terraform init
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GitHub Secrets Setup Required secrets:
AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY
ON_PREM_DB_HOST
ON_PREM_DB_USER
ON_PREM_DB_PASSWORD
AURORA_DB_HOST
AURORA_DB_USER
AURORA_DB_PASSWORD
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Run Migration
# Validate migration flyway validate # Execute migration flyway migrate
- Real-time progress tracking
- Detailed logging
- Performance metrics
- Error reporting
- Row count comparison
- Checksum verification
- Constraint validation
- Data type validation
- Database connectivity
- Application integration
- Performance metrics
- Error rates
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Data Protection
- Encryption at rest and in transit
- Secure credential management
- Regular security audits
- Access control policies
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Infrastructure Security
- VPC configuration
- Security groups
- IAM roles and policies
- Network ACLs
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Compliance
- Audit logging
- Data retention policies
- Access monitoring
- Security scanning
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Database Rollback
- Automated backup restoration
- Transaction rollback
- Schema version control
- Data consistency checks
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Infrastructure Rollback
- State management
- Resource cleanup
- Configuration restoration
- Health verification
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Migration Performance
- Batch processing
- Parallel execution
- Resource optimization
- Progress monitoring
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Database Performance
- Index optimization
- Query optimization
- Resource allocation
- Monitoring and tuning
- Fork the repository
- Create a feature branch
- Commit your changes
- Push to the branch
- Create a Pull Request
This project is licensed under the MIT License - see the LICENSE file for details.