Install

Initialize Docker:

docker-compose build

Initalize Middleman (if starting fresh):

1. docker-compose run web middleman init
2. n, when prompted to overwrite of Gemfile Allowing overwrite will change middleman-autoprefixer to problematic version.

Run

To serve:

docker-compose up

To build:

docker-compose run web middleman build

Reference

• https://docs.docker.com/samples/rails/
• https://gist.github.com/eemi/61617a360b55476cc5150b1853303798
• middleman/middleman#2480 (comment)