Lord of the Rules: The 'You Shall Not Pass!' of Kubernetes Networking - Philip Welz & Christoph Puhl

This talk covers the importance of Cilium Clusterwide Network Policies in securing network traffic within Kubernetes clusters. The speaker explores the challenges of managing compliance with Network Policies for new application deployments and presents how Clusterwide Network Policies can help establish consistent security guardrails for development teams. Key topics include the differences between Network Policies and Clusterwide Network Policies, the implications of explicit vs. implicit deny rules, and the advantages of their combined use. The session aims to provide valuable insights into implementing these policies for enhanced security in Kubernetes environments.