# Add configuration values here, as shown below. defaults: &defaults mysql_host: "localhost" mysql_usr: "user" mysql_pwd: "password" full_app_url: "localhost:3000" development: <<: *defaults test: <<: *defaults production: <<: *defaults mysql_usr: "user" mysql_pwd: "password!" secret_key_base: "super-long-secret-key-base" full_app_url: "production.domain.com/sub-folder/"