create prebuilts for alpine linux?

[ralphtheninja]

Alpine linux seems to be very commonly used in the docker world. For this reason it would be really nice to have prebuilt binaries for that particular environment. I'm guessing right now prebuild-install picks the wrong binaries with a segfault as a result.

See Level/levelup#484 for some background

[ralphtheninja]

Workaround for alpine linux users at the moment is to use --build-from-source when installing e.g. level (or leveldown directly)

[dcharbonnier]

I don't think it's possible with yarn @ralphtheninja

[vweevers]

Some context:

As Alpine Linux uses musl, you may run into some issues with environments expecting glibc-like behavior – especially if you try to use binaries compiled with glibc. You should recompile these binaries to use musl (compiling on Alpine is probably the easiest way to do this).
-- (source) (mhart/alpine-node#107)

A possible solution is to:

1. Compile prebuilds in an alpine Docker container
2. Add a '-musl' suffix to prebuild names
3. Use https://github.com/lovell/detect-libc at npm install time (to force compile if no matching prebuild is found) and run time (to select the right prebuild). WIP at Add detection for non-glibc libc on Linux prebuild/node-gyp-build#9

[vweevers]

Tasks:

• Create docker image: Create Alpine image prebuild/docker-images#6
• Create Travis job, named alpine, similar to the arm job, with --tag-libc