Example with Docker Compose

[vovimayhem]

I added a docker compose example file to quickly launch the example with Docker Compose.

Example usage:

# Move to the directory:
cd actioncable-examples

# FIRST TIME ONLY: Run the setup script inside a temporary app container:
docker-compose run --no-deps --rm web setup

# Launch the redis, web & cable containers - will download & launch a working redis container automatically:
docker-compose up

Merge to master in case you guys are interested on it :) Cheers!

[syndbg]

Why not an image from https://registry.hub.docker.com/_/rails/ ?

[vovimayhem]

@syndbg The example rails app uses an unreleased version of Rails 5.0 (as it's currently being developed), so you'll not find it on the official Docker library.

I also admit that although there's an official Ruby image, I find this one easier to use, as it does not require any building step besides the bundle install. (I remember having to run some sort of building step in the official ruby image)

[syndbg]

@vovimayhem Aha, I see! Good to know. :)