Getting Started with OPA and Rego for Cloud Security Policies
Summary
A tutorial introduces Open Policy Agent and Rego, then explains a sample policy that checks whether AWS security-group egress rules allow unrestricted access to the public internet.
Key points
- Rego lets Open Policy Agent evaluate data and make policy decisions across cloud environments.
- The example policy checks AWS security-group egress rules for destinations that allow all internet IP ranges.
- The tutorial walks through the policy’s package, imports, default result, IP ranges, and egress-rule evaluation.
- The article points readers to a Rego guide, Styra Academy, and the Rego Playground for further learning.
Article Details
- Topic
- Using Open Policy Agent (OPA) and Rego to write cloud security policies
People
Vendors
Products
Open Policy Agent (OPA)Rego is a policy language that supports Open Policy Agent (OPA) and is used to write policies across the cloud stack. At its core, Rego inspects and transforms data, allowing OPA to make policy decisions. Rego, createdRegoIt is often overlooked how these policies are created and what goes into customizing them. We use Rego, the language used by OPA (Open Policy Agent), to write these policies because Rego is easy to use andWizwe are empowering organizations to more easily build authorization policy that is easy to read and write. Wiz’s use of Rego to configure CSPM checks on cloud resources is a notable example of how we are enabling