DigitalOcean → Terraform → CI/CD → Environment separation
Infrastructure Modernization
Moving from hand-built infrastructure to a versioned, automated, reproducible environment.
Context
A growing workload running on manually configured cloud servers. Every change was snowflake-style: undocumented, risky, and impossible to reproduce. Deploys were downtime events.
Constraints
No maintenance windows to spare, a small team, and zero appetite for a big-bang migration. The system had to keep running throughout.
Approach
Incremental codification rather than rebuild. Infrastructure was captured as code piece by piece, environments were separated (development, staging, production), and every change flowed through version control and review.
Implementation
Terraform modules for the core infrastructure, a CI/CD pipeline for both application and infrastructure changes, and clearly separated environments with controlled promotion between them.
Result
Infrastructure became reproducible and reviewable. Deploy risk dropped measurably, and environment drift — the old silent killer — disappeared. What used to be a weekend of manual work became a routine, reviewed pull request.