Terraform
Terraform — DevOps tooling for CI/CD, infrastructure, and observability.
Stack Components
Why
Automates build, deploy, scale, and monitor workflows for reliable software delivery. Docker is used by 59% of professional developers per the Stack Overflow 2024 survey, and Terraform is used by 65% of organizations for IaC (HashiCorp 2024).
GitOps (ArgoCD, Flux) reduces deployment drift to near-zero by making git the single source of truth.
When
Use for team-based software delivery needing automation. Avoid for single-dev static sites.
How
Example
Common Problems
- ⚠Terraform config drift between environments — use IaC versioning
- ⚠Secrets in plaintext config — use Vault/SOPS for encryption
- ⚠Configuration drift between environments — use infrastructure-as-code (Terraform/Pulumi) to keep dev/staging/prod identical
Best Practices
- ✓Pin Terraform versions and review upgrade notes before updating
- ✓Store all config in Git for audit trail and rollback
- ✓Set up health checks and graceful shutdown — handle SIGTERM to drain in-flight requests before exit
FAQ
What is Terraform and what projects is it for?
Terraform — DevOps tooling for CI/CD, infrastructure, and observability. It pairs layered technologies for end-to-end type safety and out-of-the-box deploys, fitting everything from MVPs to production SaaS.
How do I spin up a working demo with Terraform in 10 minutes?
Two steps: (1) Install Terraform; (2) Configure pipeline/playbook. Get the local dev server running, then wire one real data source to verify the end-to-end loop.
What is the most common pitfall with Terraform and how do I avoid it?
The most common pitfall is: Terraform config drift between environments — use IaC versioning. Avoid it by adding the matching checklist to your PR template and running type-check + lint + unit tests in CI — three gates before merge.
What are the best practices for Terraform?
Best practices for Terraform include: Pin Terraform versions and review upgrade notes before updating; Store all config in Git for audit trail and rollback; Set up health checks and graceful shutdown — handle SIGTERM to drain in-flight requests before exit. The first one — "Pin Terraform versions and review upgrade notes before updating" — should be set up at project init to avoid costly rework later.
When should I NOT choose Terraform?
Pick something else in three cases: (1) the team has zero experience with the core framework and the deadline is tight (learning-curve risk); (2) it's a pure content/marketing site (Astro is lighter); (3) you need very high throughput (>10k RPS) or strict-consistency microservices (Go/Rust). Terraform shines for mid-to-high complexity full-stack and API work — don't over-engineer simple static pages with it.