How we migrated the database behind every Vercel build

T1Covered by 1 source · first reported by Vercel (blog + changelog) at 11 Aug, 22:00 UTC

Every build on Vercel starts in the build warm pool, which is a set of standby containers that let builds begin without waiting for new compute. The pool runs on state that tracks which containers are ready, the tokens each one uses to authenticate, and the mapping that ties every running build…