Cilium 1.20: Gateway API ExternalAuth, TCPRoute/UDPRoute, ENI IPAM for IPv6, and more
Cilium 1.20, the second major open source Cilium release of 2026 after Cilium 1.19, is finally here. Three themes stand out in this release: Thank you to every contributor, reviewer and maintainer who made Cilium 1.20…
When Kubeflow meets Cilium: Debugging 60% idle GPUs in Kubernetes
The symptom that made no sense The first time we saw it, we didn’t trust the dashboard. A distributed training job was scheduled and healthy — every pod was running, no crashes, no OOMKills, nothing in…
The Kubernetes integration tax: Prometheus, Cilium and production reality
I still remember the first time we lost sleep over something that wasn’t a bug. It was a Tuesday. Grafana dashboards showed blank panels for Cilium network metrics. Hubble was working fine — DNS visibility, TCP…
The New Stack: “Why Prometheus couldn’t see Cilium metrics at 2 a.m.”
Tame the Kubernetes “integration tax.” Learn how to wire CNCF projects like Prometheus and Cilium for production-grade reliability.
KubeCon + CloudNativeCon Europe 2026 Co-located Event Deep Dive: CiliumCon
Three years later, CiliumCon is back where it started—at KubeCon + CloudNativeCon Europe in Amsterdam. This will be our seventh time hosting the event, and it comes on the heels of the tenth anniversary of Cilium’s…
Navigating the ingress-nginx archival: why now is the time to move to Cilium
This Member Blog was originally published on the Isovalent blog and is republished here with permission. If you’re running Kubernetes, there’s a good chance you rely on ingress-nginx to route external traffic to your workloads. For…
Cilium releases 2025 annual report: A decade of cloud native networking
A decade on from its first commit in 2015, 2025 marks a significant milestone for the Cilium project. The community has published the 2025 Cilium Annual Report: A Decade of Cloud Native Networking, which reflects on…
Safely managing Cilium network policies in Kubernetes: Testing and simulation techniques
Network policy changes are among the most frequent operations in a Kubernetes cluster. They are also among the most delicate, as even a small mistake can lead to widespread traffic disruption. This tutorial walks through several…
Connecting distributed Kubernetes with Cilium and SD-WAN: Building an intelligent network fabric
Learn how Kubernetes-native traffic management and SD-WAN integration can deliver consistent security, observability, and performance across distributed clusters. The challenge of distributed Kubernetes networking Modern businesses are rapidly adopting distributed architectures to meet growing demands for…