Dockerfile template support

[jmpinit]

I'm interested in using Dockerfile templates to deploy my application to multiple platforms, but without rdt support the feature is not very useful because I'd like to use rdt during development and resin.io for deployment.

• rdt version: 0.0.8
• Operating system and architecture: macOS Sierra (10.12.2)
• rdt output with --verbose flag enabled and Dockerfile.template present:

> rdt push --verbose --source .
No Dockerfile was found in the project directory: .

If you need help, or just want to say hi, don't hesitate in reaching out at:

    GitHub: https://github.com/resin-os/resin-device-toolbox/issues/new
    Gitter: https://gitter.im/resin-io/chat

Just want to share my use-case - I understand other things are likely higher priority.

[Page-]

Hey, we (@CameronDiver mainly) are actually working on separating the dockerfile template building logic into an open module that can be used in a standalone way and will almost certainly get built into rdt push

[jmpinit]

Cool! Glad it's headed in that direction. And thanks for the fast response. Feel free to close this issue if you'd like.

[Page-]

It's worth keeping it open to track progress imo :)