Curious to know how many people do zero-downtime deployment of backend code and how many people regularly take their service down, even if very briefly, to roll out new code.
Zero-downtime deployment is valuable in some applications and a complete waste of effort in others, of course, but that doesn’t mean people do it when they should and skip it when it’s not useful.
We have a clustered/load balanced application and do zero downtime deployments with elastic beanstalk on aws. I’m uncertain as to how popular elastic beanstalk is, but it makes managing this sort of stuff really easy.