rails newでアプリを作成したらすること - Qiita

# MySQL. Versions 5.5.8 and up are supported. # # Install the MySQL driver # gem install mysql2 # # Ensure the MySQL gem is defined in your Gemfile # gem "mysql2" # # And be sure to use new-style password hashing: # https://dev.mysql.com/doc/refman/5.7/en/password-hashing.html # default: &default adapter: mysql2 encoding: utf8mb4 pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %> username: root pas