docker-compose.yml
version: '2'
services:
web:
image: ruby:2.3
links:
- db
volumes:
- .:/app
command: bash -c 'cd /app && rm -f tmp/pids/server.pid && bundle && bundle exec rails server --bind 0.0.0.0'
ports:
- 3000:3000
db:
image: mysql:5.7
environment:
- MYSQL_ALLOW_EMPTY_PASSWORD=yes