This blog post discusses the implementation of Firewall-as-a-Service (FWaaS) in OpenStack running on OpenShift, emphasizing its importance for enhancing security in multi-tenant applications. It outlines the capabilities, benefits, and configuration steps for enabling FWaaS, including key use cases such as tenant isolation and granular traffic control. The article ultimately highlights best practices for deploying FWaaS effectively while maintaining a robust security posture.