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 do zero downtime for our web & api systems. Our databases are on AWS aurora and the built in blue/green deploys have downtime, which I hate. My previous company has zero downtime database blue/green but it required a lot of custom code and ran the DB on EC2 unmanaged.