Switching your CNI — Simone Sciarrati & Federico Hernandez

This talk explores the migration of Kubernetes clusters at Meltwater from the AWS VPC CNI plugin to Cilium, which supports over 40 engineering teams and manages more than 3,000 deployments and 10,000 pods. The speaker discusses the reasoning behind the transition, the approach taken to familiarize the team with Cilium, and the tools developed to ensure a successful deployment in production. The session covers the requirements and challenges faced during the in-place migration, as well as the testing methods employed. Attendees will gain insights into managing migration projects, lessons applicable not just to Cilium but to similar technological transitions.