# File lib/fog/aws/compute.rb, line 311
        def initialize(options={})
          require 'fog/core/parser'

          @use_iam_profile = options[:use_iam_profile]
          setup_credentials(options)
          @connection_options     = options[:connection_options] || {}
          @region                 = options[:region] ||= 'us-east-1'
          @instrumentor           = options[:instrumentor]
          @instrumentor_name      = options[:instrumentor_name] || 'fog.aws.compute'
          @version                = options[:version]     ||  '2012-07-20'

          if @endpoint = options[:endpoint]
            endpoint = URI.parse(@endpoint)
            @host = endpoint.host
            @path = endpoint.path
            @port = endpoint.port
            @scheme = endpoint.scheme
          else
            @host = options[:host] || "ec2.#{options[:region]}.amazonaws.com"
            @path       = options[:path]        || '/'
            @persistent = options[:persistent]  || false
            @port       = options[:port]        || 443
            @scheme     = options[:scheme]      || 'https'
          end
          @connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
        end