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Cloud Migration to AWS

Context

Supporting Patronus company in its migration to AWS: technical architecture document, technology watch, planning and cost estimation.

Objectives

  • Conduct technology watch on Cloud services
  • Produce a Technical Architecture Document (TAD)
  • Compare on-premise, IaaS and PaaS models
  • Establish a migration schedule (Gantt)
  • Estimate human and financial costs

Evaluated AWS Services

Service On-prem Equivalent Usage
EC2 Physical servers Compute
RDS MySQL/PostgreSQL Managed database
S3 NAS/SAN Object storage
CloudFront CDN Content distribution
VPC Local network Network isolation
IAM Active Directory Access management

Model Comparison

Criteria On-premise IaaS (EC2) PaaS (Elastic Beanstalk)
Control Total High Limited
Maintenance Internal Shared AWS
Scalability Limited Good Excellent
Initial cost High Low Low
Recurring cost Low Variable Variable

Deliverables

View deliverables

Skills Acquired

  • Structured technology watch
  • Understanding of Cloud models (IaaS/PaaS/SaaS)
  • Technical architecture document writing
  • Project cost and effort estimation
  • Migration planning (Gantt)
  • Stakeholder communication (kickoff)