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I made a quick little Dockerfile search engine over the weekend that hits the Sourcegraph API. My goal is to make it easier to find how to install or configure things in Dockerfiles by seeing how other open-source projects have done it.

It has instant search, and it also has tooltips in the Dockerfile source (just mouse over an instruction, like FROM/ADD/CMD/etc., or a base image).

Hope some other folks find this useful, and I’d love to hear feedback! (Search highlighting is a bit wonky.)