Turn Your Kubernetes Cluster Into a Castle Using Advanced Cilium Network Policies - Philip Schmid

This session focuses on the importance of maintaining strict communication within Kubernetes clusters, emphasizing the need for enhanced security measures. The speaker introduces Cilium Network Policies (CNP), showcasing how to effectively secure a cluster by implementing various policies. Topics include the use of Host Policies to standardize firewall management, restricting outgoing traffic to select DNS domains, and denying access to unrelated workloads and Kubernetes control plane components. The talk also highlights the importance of monitoring incoming traffic to protect critical application endpoints and infrastructure components. By the end of the session, attendees will gain a comprehensive understanding of CNPs and how to utilize them to establish a robust rule set for their own Kubernetes environments.