Cloud Migration

Project Overview

A comprehensive cloud migration project that transformed a legacy on-premise infrastructure into a modern, scalable AWS-based solution. The project focused on improving reliability, reducing costs, and enabling faster feature delivery through infrastructure as code and containerization.

Key Achievements

Infrastructure Transformation

• Migrated from bare-metal servers to AWS cloud infrastructure
• Implemented Infrastructure as Code using Terraform
• Containerized all applications using Docker
• Deployed Kubernetes cluster for orchestration

Cost Optimization

• Reduced monthly infrastructure costs by 40%
• Implemented auto-scaling to handle peak loads
• Utilized reserved instances for predictable workloads
• Optimized storage with lifecycle policies

Reliability Improvements

• Achieved 99.9% uptime SLA
• Implemented multi-AZ deployment
• Created automated disaster recovery
• Set up comprehensive monitoring and alerting

Technical Stack

• Cloud Provider: AWS (EC2, RDS, S3, Route53, CloudFront)
• Infrastructure: Terraform, AWS CloudFormation
• Containers: Docker, Amazon EKS
• CI/CD: GitHub Actions, ArgoCD
• Monitoring: Prometheus, Grafana, CloudWatch
• Security: AWS IAM, Vault, WAF

Implementation Details

Phase 1: Assessment and Planning

• Analyzed existing infrastructure
• Created migration roadmap
• Designed target architecture
• Established security compliance requirements

Phase 2: Foundation Setup

• Created AWS organization structure
• Implemented Terraform modules
• Set up networking (VPC, subnets, security groups)
• Configured CI/CD pipelines

Phase 3: Application Migration

• Containerized legacy applications
• Deployed to Kubernetes
• Migrated databases to RDS
• Implemented blue-green deployment

Phase 4: Optimization

• Fine-tuned auto-scaling policies
• Implemented cost optimization
• Enhanced monitoring dashboards
• Conducted disaster recovery testing

Results

The migration project delivered significant improvements across all key metrics:

• Cost Reduction: 40% monthly savings
• Reliability: 99.9% uptime achieved
• Deployment Speed: 3x faster releases
• Scalability: Handles 10x peak loads
• Security: Full compliance achieved

Client Testimonial

“The cloud migration was executed flawlessly. Our infrastructure is now more reliable, scalable, and cost-effective. The team’s expertise in AWS and Kubernetes was evident throughout the project.”

— Jan Novák, CEO, TechStartup s.r.o.

Lessons Learned

1. Start with a thorough assessment before migration
2. Implement infrastructure as code from day one
3. Test disaster recovery procedures regularly
4. Monitor costs continuously and optimize
5. Document everything for future maintenance