Terraform Best Practices for DevOps Teams

Terraform Best Practices for DevOps Teams#

Learn practical Terraform best practices for secure, reusable, reliable, and team-friendly Infrastructure as Code.

Quick answer#

Use remote state#

Teams should avoid local-only state.

Use modules carefully#

Reuse patterns, but do not hide complexity.

Protect secrets#

Never commit credentials or secret tfvars files.

Core best practices#

• Use clear file structure.
• Use remote backend with locking.
• Use variables and outputs consistently.
• Keep modules small and documented.
• Pin provider versions.
• Use consistent naming and tags.
• Review terraform plan before apply.
• Run terraform fmt and terraform validate .
• Separate environments clearly.
• Store secrets outside Git.

CI/CD best practices#

• Run fmt and validate on merge requests.
• Generate plan for review.
• Require approval before production apply.
• Use protected variables and trusted runners.
• Keep state credentials secure.

Common mistakes#

• Committing state files.
• Hardcoding secrets.
• Using one giant root module.
• Running apply from random laptops for production.
• Ignoring drift.

Related guides#

• Terraform Learning Path
• Terraform Remote Backend