One thing I can't see mentioned is disaster recovery. We expect the cloud to be largely bulletproof but that has been proven wrong, we could easily lose somethi

One thing I can't see mentioned is disaster recovery. We expect the cloud to be largely bulletproof but that has been proven wrong, we could easily lose something for multiple hours, which for a SaaS business is very bad for business. When Azure London went down for 6 hours, or whatever, we should have been able to recreate our microservices cluster in another centre but we simply didn't have it setup like that and had to live with the outage. If we had to recreate any of our cloud system manually, it would take an enormous amount of time and would probably not work properly since we forgot those registry settings/frameworks/configurations that we did 2 years ago. Part of the point of IaC is the ability to recreate all of most of what we need at the click of a button. Even if you had everything documented, the physical time would be prohibitive.