def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
@aws_credentials_expire_at = Time::now + 20
setup_credentials(options)
@region = options[:region] || 'us-east-1'
if @endpoint = options[:endpoint]
endpoint = URI.parse(@endpoint)
@host = endpoint.host or raise InvalidURIError.new("could not parse endpoint: #{@endpoint}")
@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
Fog::AWS.validate_region!(@region, @host)
end