Platform security case study
Platform Security Policy Framework
A policy-as-code framework that standardizes guardrails across Kubernetes and GCP while making exceptions auditable and time-bound.
OPAGatekeeper
SentinelTerraform policy
GCPOrg policies
GitOpsChange control
Problem
Cloud and Kubernetes platforms need consistent security guardrails, but ad hoc enforcement creates exceptions, bypasses, and unclear ownership.
What I built
I built a platform policy framework for Kubernetes and GCP resources using OPA Gatekeeper and Terraform Sentinel. The framework standardizes controls while creating a trackable exception process for legitimate deviations.
Key design choices
- Codify policies as source-controlled changes.
- Use PR workflows for review and rollout.
- Make exceptions explicit, time-bound, and auditable.
- Expose failures and trends through observability so teams can act without waiting on manual analysis.
Impact
This shifts security left while preserving engineering velocity. Teams get clearer guardrails, security gets governance, and the platform team reduces repetitive support conversations.