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Terraform & Infrastructure as Code · Module 10 of 10

Best practices and certification

Write maintainable Terraform and get certified.

📖 Key ideas

  1. Structure: main.tf, variables.tf, outputs.tf, versions.tf.
  2. Small, composable modules; avoid giant root modules.
  3. Never hard-code secrets; use secret managers.
  4. Document modules with READMEs and examples.
  5. Certification: HashiCorp Terraform Associate.
💡 Real-life example: Clean Terraform is a well-labelled toolbox: anyone on the team can find and use the right tool.
versions.tfFile pinning Terraform/provider versions
Blast radiusScope of damage from a change
Terraform AssociateHashiCorp certification
terraform-docsGenerates module documentation