9
Embed erb in yaml file as rails did:
# config/initializers/load_config.rb
APP_CONFIG = YAML.load_file("#{Rails.root}/config/app_config.yml")[Rails.env]
# config/app_config.yml
development:
key1: <%= # ruby code ... %>
test:
key1: <%= # ruby code ... %>
production:
key1: <%= # ruby code ... %>