GKE Security Platform with Policy Governance

Designed and implemented a secure multi-tenant GKE platform on Google Cloud with comprehensive policy enforcement using OPA Gatekeeper. The project involved provisioning the entire infrastructure using Terraform, including GKE clusters with Workload Identity, VPC-native networking, and private nodes. Implemented a GitOps workflow using ArgoCD for declarative application deployment and configuration management. Developed custom Gatekeeper constraint templates to enforce security policies such as pod security standards, resource quotas, image registry restrictions, and network policy requirements. Integrated Binary Authorization to ensure only signed and verified container images are deployed to the cluster. The platform reduced security misconfigurations by 85% and enabled development teams to self-service deploy applications while maintaining compliance with organizational security standards.