xconf.io is a config file search engine.
It currently supports Dockerfiles and lets you search by any text contained in a Dockerfile on Sourcegraph, and you can click on Dockerfile instructions and base images to jump to documentation and homepages.
Try it at xconf.io, and browse the code at sourcegraph.com/sourcegraph/xconf.
It's powered by the Sourcegraph API, srclib, and the srclib-docker toolchain.
