Rails.application.secrets.namespace returns
my_app_production in the production environment.
# File railties/lib/rails/application.rb, line 394
def secrets
@secrets ||= begin
secrets = ActiveSupport::OrderedOptions.new
files = config.paths["config/secrets"].existent
files = files.reject { |path| path.end_with?(".enc") } unless config.read_encrypted_secrets
secrets.merge! Rails::Secrets.parse(files, env: Rails.env)
# Fallback to config.secret_key_base if secrets.secret_key_base isn't set
secrets.secret_key_base ||= config.secret_key_base
# Fallback to config.secret_token if secrets.secret_token isn't set
secrets.secret_token ||= config.secret_token
if secrets.secret_token.present?
ActiveSupport::Deprecation.warn(
"`secrets.secret_token` is deprecated in favor of `secret_key_base` and will be removed in Rails 6.0."
)
end
secrets
end
end