KubeVirt VMs all the way down: a custom-sized networking solution for inceptionist clusters

KubeVirt Summit Day 2
"KubeVirt VMs all the way down: a custom-sized networking solution for inceptionist clusters"
Presented by Miguel Duarte Barroso & Enrique Llorente Pastora

Abstract: Setting up a Kubernetes cluster is a complex process that relies on several components being configured properly. There are multiple distributions and installers helping with this task, each with different default configurations for clusters and infrastructure providers; while these bootstrap providers reduce installation complexity, they don’t address how to manage a cluster day-to-day or a Kubernetes environment long term. You are still missing important features like automated cluster lifecycle management.

The Cluster API project provides declarative, Kubernetes-style APIs to automate cluster creation, configuration, and management. In this presentation, we will focus on CAP-K: a Cluster API provider implemented using KubeVirt VMs. We will discuss some of the challenging requirements that running nested Kubernetes has. Finally, we will offer a comprehensive solution based on OVN, an SDN solution to provide L2/L3 virtual topologies, ACLs, fully distributed DHCP support, and L3 gateways from logical to physical networks.

The audience should be familiar with virtualization, and have a basic knowledge of networking.

The audience will learn the networking requirements of Kubernetes, how to run nested Kubernetes/KubeVirt clusters, understand what are the challenges of isolating traffic on these nested clusters, and finally, how this can be achieved using OVN to implement the networking infrastructure.

[ekambaramvarathan]

Need a help..., , I am trying to connect kubevirt VM from outside k8s cluster network(host network 100.96.1.x/24), pod network cidir (10.1.1.x/24) but its not working... please provide example yaml scripts