#Serverless + #Devops = BFF
summary
RealSelf moves from EC2 to AWS Lambda for operations automation, first attempt in 2016 fails, then decommissioned last VM for automation in mid‑2017 and three lambdas deployed for customer features in December 2017. Serverless suits short, single‑step tasks like webhooks and cron jobs, not general‑purpose compute; watch execution time limits and surprising behaviors such as global variables persisting between invocations. Example cost: an app handling 1 request/sec at ~200ms can run for about $0.15/month.
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