Développement / Note de terrain
Terraform dès le premier jour
L'infrastructure as code est rentable le plus vite au début, quand il y a peu de choses à importer et que chaque ressource peut naître gérée.
Cette note de terrain est publiée en anglais.
Teams usually adopt Terraform after the console sprawl hurts — which means weeks of importing resources that already exist, each one a small archaeology project. Starting with Terraform on day one skips all of that. Every resource is born managed, reviewed and reproducible.
State belongs in a backend
Local state files are how two engineers overwrite each other's infrastructure. Remote state with locking — Azure Blob Storage or Google Cloud Storage — from the very first apply. This is a ten-minute setup that prevents the worst failure mode.
Modules later, flat first
Premature modules abstract over unknowns. Start with a flat configuration per environment, and extract modules only when the third copy of a pattern appears. Duplication across two environments is cheaper than the wrong abstraction.
Plan in the pipeline
Every pull request runs plan; only merges to main run apply — with approvals on production. The plan output is the review: readable proof of what will change before anything changes. Pair it with cost estimation so surprises arrive as comments, not invoices.
Further reading: Terraform documentation.
