Compliance / Sentinel

Hashicorp Sentinel is a policy-as-code framework integrated with HashiCorp's enterprise products, including Terraform Cloud and Terraform Enterprise. It allows organizations to define and enforce standardized, fine-grained policies across their infrastructure deployments. Sentinel policies can be written to check for security compliance, cost management, or operational best practices before Terraform applies any changes. These policies use a domain-specific language to define rules that evaluate Terraform plans and state, enabling teams to catch potential issues early in the development process. Sentinel can enforce mandatory policies that prevent non-compliant infrastructure changes from being applied, or advisory policies that warn but don't block deployments.