How I moved from MetalLB to Cilium

Note: Cilium version 1.13 is still in pre-release phase. MetalLB Since running my Kubernetes cluster at home, I ran MetalLB for load-balancing in layer 2 mode. Layer 2 mode doesn’t implement load-balancing. It’s instead a fail-over mechanism should one node fail. All traffic for a service IP goes to one node, and KubeProxy forwards it. Apart from layer 2 mode, MetalLB also supports BGP mode, which is fundamentally different and more comparable with the implementation of Cilium....

January 27, 2023 · 3 min · Dario

Network sniffing on Kubernetes

Background Yesterday I faced some issues with an application running on my private k8s cluster. I assumed some kind of networking issue. Therefore, I wanted to sniff the network traffic, in order to find out what was going on. However, I had no idea how to do it. Sure, the web helped in this case. The solution was ksniff. What is ksniff? Ksniff is a plugin for kubectl that can be installed via krew, a plugin manager for kubectl....

January 27, 2022 · 2 min · Dario