if ENV.key?('I3S_SSL_ENABLED')
          if %w[true false 1 0].include?(ENV['I3S_SSL_ENABLED'])
            @ssl_enabled = !%w[false 0].include?(ENV['I3S_SSL_ENABLED'])
          else
            @logger.warn "Unrecognized ssl_enabled value '#{ENV['I3S_SSL_ENABLED']}'. Valid options are 'true' & 'false'"