AWS β Another Cloud Migration
Cloud Infrastructure Migration from AWS to a Cost-Optimized Private Cloud Client Confidential
Challenge The client needed to migrate their entire AWS infrastructure to an alternative cloud provider to reduce costs and eliminate vendor lock-in. The key requirements were minimal downtime, zero functionality loss, and a reliable rollback strategy.
Solution 1. Audit & Planning Full inventory of AWS resources (EC2, RDS, S3, VPC) Service mapping: AWS β target cloud equivalents Phased migration plan with clear milestones Rollback strategy for each stage 2. Infrastructure Preparation Terraform for IaC on the target platform VPC, subnets, and security groups configuration Managed PostgreSQL and Redis deployment Object Storage setup (S3-compatible) 3. Data Migration Database replication via DMS S3 β Object Storage sync Docker image transfer to private Container Registry Full validation on staging environment 4. Production Cutover DNS failover for gradual traffic switching Real-time metrics monitoring during cutover AWS kept on standby for emergency rollback Final cutover completed in 2 hours Technologies AWS Terraform Prometheus Grafana GitLab CI Results β
Cost reduction: 40% savings (from $15k to $9k/month)
β
Downtime: only 2 hours vs. 8 hours planned
β
Vendor independence: full exit from AWS with no functionality loss
β
Performance: maintained at the same level post-migration
β
Compliance: data residency and security requirements met
