Kubernetes Athens vol28

We are pleased to bring you two talks this time. This event will be held in the offices of our sponsor Plum, Stadiou 3a, Athina 105 62.

1st talk: "Working with Kubeflow: A cloud-native machine learning platform for Kubernetes" by Manos Vlassis

Abstract: Kubeflow is the foundation of tools for AI platforms on Kubernetes. The platform itself is composable, modular, portable, and scalable, backed by an ecosystem of Kubernetes-native projects for each stage of the AI lifecycle. This talk explores the architecture of Kubeflow, the advantages it offers to engineers and scientists, and a use case of how it can be used to speed up processes.
Presenter: Manos is a Software Engineer at Canonical, working at the Machine Learning Operators (MLOps) team. He is working on a distribution of Kubeflow to facilitate machine learning workflows on Kubernetes-based systems.

2nd talk: "ingress-nginx is archived: How we migrated to kgateway (and Didn’t Break Prod)" by Konstantinos Stavropoulos

Abstract: With ingress-nginx being archived in March 2026, Plum's SRE team used it as an opportunity to migrate to kgateway - a CNCF-backed Gateway API implementation chosen after benchmarking several alternatives. The 12-week migration relied on running both controllers in parallel, building custom Loki-based observability before cutover, and using staging to catch breaking differences like stricter path matching and a shorter default timeout. The result was zero production incidents and zero customer-facing downtime across all migrated services.
Presenter: Konstantinos Stavropoulos is the SRE Lead at Plum, where he leads the team responsible for the reliability and evolution of the company's infrastructure. With a background spanning fintech, cybersecurity, and logistics across Greece and the Netherlands, he specialises in Kubernetes, CI/CD, cloud-native infrastructure, and security - with a proven track record of leading complex migrations from legacy stacks to modern, cloud-native architectures. Beyond hands-on engineering, Konstantinos is a community builder who delivers internal workshops and mentors teams through technical and leadership growth.