Build an OpenStack/Ceph cluster with Cumulus Networks in GNS3: part 1
Introduction
I must have built OpenStack demos a dozen times or more over the past few years, for the purposes of learning, training others, or providing proof of concept environments to clients. However these environments always had one thing in common – they were purely demo environments, bearing little relation to how you would build OpenStack in a real production environment. Indeed, most of them were “all-in-one” environments, where every single service runs on a single node, and the loss of that node would mean the loss of the entire environment – never mind the lack of scalability!
Having been tasked with building a prototype OpenStack environment for an internal proof of concept, I decided that it was time to start looking at how to build OpenStack “properly”. However I had a problem – I didn’t have at my disposal the half-dozen or so physical nodes one might typically build a production cluster on, never mind a highly resilient switch core for the network. The on-going lockdown in which I write this didn’t help – in fact it made obtaining hardware more difficult.
I’ve always been inspired by the “cldemo” environments on Cumulus Networks’ GitHub and my first thought was Continue reading
