Terraform

Trivy supports the scanners listed in the table below.

Scanner	Supported
Misconfiguration	✓
Secret	✓

It supports the following formats:

Format	Supported
JSON	✓
HCL	✓
Plan Snapshot	✓
Plan JSON	✓

Trivy can scan Terraform Plan files (snapshots) or their JSON representations. To create a Terraform Plan and scan it, run the following command:

terraform plan --out tfplan
trivy conf tfplan

To scan a Terraform Plan representation in JSON format, run the following command:

terraform show -json tfplan > tfplan.json
trivy conf tfplan.json

Misconfiguration

Trivy recursively searches directories and scans all found Terraform files. It also evaluates variables, imports, and other elements within Terraform files to detect misconfigurations.

Value Overrides

You can provide tf-vars files to Trivy to override default values specified in the Terraform HCL code.

trivy conf --tf-vars dev.terraform.tfvars ./infrastructure/tf

Exclude Downloaded Terraform Modules

By default, downloaded modules are also scanned. If you don't want to scan them, you can use the --tf-exclude-downloaded-modules flag.

trivy conf --tf-exclude-downloaded-modules ./configs

Secret

The secret scan is performed on plain text files, with no special treatment for Terraform.