Dive into the world of Policy-as-Code (PaC) with this practical, no-fluff guide designed for DevOps Engineers, Platform Engineers, and SREs. Whether you're battling compliance nightmares, shifting security left, or automating guardrails for Kubernetes, Terraform, or CI/CD pipelines, this book equips you with real-world scenarios, production-ready snippets, and decision frameworks to implement PaC with confidence.
Explore the four leading tools—OPA (Open Policy Agent), Kyverno, Conftest, and HashiCorp Sentinel—through hands-on examples:
- OPA & Gatekeeper: Master Rego for Kubernetes admission control and complex policy logic.
- Kyverno: Write policies in pure YAML for validation, mutation, and generation—no new language required.
- Conftest: Catch misconfigurations in Dockerfiles, Terraform plans, and Kubernetes manifests before they hit production.
- Sentinel: Enforce cost, security, and compliance rules in Terraform Cloud with tight pipeline integration.
From installation to production hardening, learn how to:
Shift left with pre-commit hooks, CI checks, and GitOps workflows.
Enforce standards for containers, registries, labels, and cloud resources.
Audit and harden with logging, exception workflows, and continuous compliance.
Choose the right tool for your stack with a decision matrix and hybrid patterns.
Packed with code snippets, architecture diagrams, and battle-tested advice, this 2025 Edition is your roadmap to scalable, maintainable, and audit-ready Policy-as-Code—so you can sleep soundly while your policies do the heavy lifting.
Perfect for: Teams adopting Kubernetes, Terraform, or GitOps who want to automate compliance, reduce human error, and build trust in their infrastructure.
