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So... I'm quite sleep deprived due to a sick kid (nothing serious) and haven't really followed Docker much in any case.

Why would I "Dockerize" my infrastructure, and what benefits and challenges does that entail? I mostly do fairly simple RoR web apps that run on something like Linode.

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I'm not sure this has a one sentence answer: http://www.docker.io/the_whole_story/

http://lmgtfy.com/?q=why+use+docker

That's not a very helpful reply, really, as a lot of the first hits on Google are kind of vague, and I have no idea whether the whole thing really applies to what I do in any case.

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