How to Scan Terraform for Cloud Security Misconfigurations Before Deployment

Scan Terraform before deployment for cloud security misconfigurations.

Pipeline

Terraform -> Validate -> Checkov -> Trivy -> Policy -> Plan -> Review -> Apply

Validate

terraform fmt -check
terraform validate

Scan

checkov -d .
trivy config .

Check for public resources, weak permissions, missing encryption, open network paths, and insecure Kubernetes/IaC settings.

Security Gates

A starting model:

Critical -> Block
High -> Block or Approval
Medium -> Review
Low -> Track

Tune thresholds using real false-positive and risk data.

Organization Policies

Examples:

• Production storage must be private.
• Production databases require encryption.
• CI identities cannot have Owner.
• Internet-facing resources require approved controls.

Exceptions

Record reason, owner, compensating control, and expiration.

Final Takeaway

IaC scanning works best when it is part of normal pull-request engineering rather than a post-deployment audit.