Ask HN: How do serverless/cloud functions work underneath?
I've been curious about this for a while, anyone willing to shed some light even at a higher level! I speculate it's just containers, repurposed solely for the purposes of serving HTTP APIs. When you "deploy" a cloud function I think it means it rebuilds the container image and replaces the running instance of the container. I imagine that e.g. the usual 60s "timeout" of a cloud function just means they kill the container after 60s? And maybe e.g. Firestore triggers means that Firestore maintains event handlers that spawn a container (your "trigger") to run the code you want for that event? You can also check out how https://www.openfaas.com/ works. Is Google broken for you? Where I'm from, yes. Thanks for making privileged assumptions.