docker-rails-mysql

create rails

$ docker-compose run web rails new . --force --no-deps --database=mysql

docker build

$ docker-compose build

rails setting

development:
  <<: *default
  database: myapp_development
  host: db
  username: root
  password: password

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: myapp_test
  host: db
  username: root
  password: password

mysql create

$ docker-compose run web rails db:create

Hello world!

$ docker-compose up