defaults: &defaults
  adapter: <%= @database_adapter %>
  host: <%%= ENV['DATABASE_HOST'] %>
  username: <%%= ENV['DATABASE_USER'] %>
  password: <%%= ENV['DATABASE_PASSWORD'] %>
  database: <%%= ENV['DATABASE_NAME'] %>

production:
  <<: *defaults

development:
  <<: *defaults

test:
  <<: *defaults

staging:
  <<: *defaults