Scalable and Multi-tenant Kubernetes Ingress Infrastructure

Explore CERN's scalable and multi-tenant Kubernetes ingress infrastructure in this DevConf.CZ 2024 conference talk. Discover how the European Organization for Nuclear Research, birthplace of the Web, leverages OpenShift Kubernetes Distribution to host a private platform-as-a-service optimized for web applications. Learn about the reliable framework handling thousands of websites per ingress controller, managing long-lived connections, and supporting high-traffic applications. Gain insights into CERN's web hosting infrastructure, including the use of open-source and in-house developed software for seamless user experience. Examine strategies for setting up Kubernetes Ingress Controllers in multi-tenant clusters and methods for scaling and sharding ingress controllers based on application requirements, with a focus on HAProxy ingress controllers. Delve into integrations for hostname registration, certificate provisioning, access control policies, and enforcing unique hostnames across multiple Kubernetes clusters.