fnctl: should we add a "vendor" or "deps" command to ensure the dependencies are built on alpine

[treeder]

For instance, see the ruby vendoring: https://github.com/iron-io/dockerworker/tree/master/ruby

Or the node vendoring: https://github.com/iron-io/dockerworker/tree/master/node

If the dependencies have any native extensions, it won't work if built on the user's host system (unless they're running a system with musl).

[ucirello]

My take on this is that when the application gets complex enough, that's when our bootstrap tools go away from the scene and the advanced documentation kicks in. If you have a sufficiently complex application, you should be probably be using custom func.yaml and Dockerfile.

[ucirello]

With the advent of package lang and PreBuild() call, this is rather trivial now.