Example Mysql config Rails

database.yml

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  socket: /tmp/mysql.sock

development:
  <<: *default
  database: db_dev
  username: root
  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: db_test
  username: root
  password:

production:
  <<: *default
  database: db_prod
  username: root
  password: