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Re:Ask HN: As a web developer, do I have to know what Docker... by michaelmior on Thursday October 26, 2017 @05:24AM (#15557456)
It's fairly common to use Docker to run other services (database, cache, etc.) needed when developing a web app.
Re:Ask HN: As a web developer, do I have to know what Docker... by stephenr on Friday October 27, 2017 @02:54AM (#15566255)
I assume you're talking about running multiple images concurrently, each one focussed on it's own specific role.

Sure, you can do that too with Vagrant. Vagrant isn't limited to running a single machine for a given Vagrantfile.