def get_rds_details(options = {})
      stack_resources = resources(options)
      rds_resource_ids = get_resource_ids(stack_resources, "AWS::RDS::DBInstance")
      rds = Fog::AWS::RDS.new(:aws_access_key_id => @access_key_id, :aws_secret_access_key => @secret_access_key, :region => @region)
      rds_details = {}
      rds_resource_ids.each do |key, value|
        rds_instance_details = rds.describe_db_instances(value)
        rds_details[key] = rds_instance_details.body["DescribeDBInstancesResult"]["DBInstances"][0] rescue nil
      end 
      return rds_details
    end
def get_rds_details(options = {})
      stack_resources = resources(options)
      rds_resource_ids = get_resource_ids(stack_resources, "AWS::RDS::DBInstance")
      rds = Fog::AWS::RDS.new(:aws_access_key_id => @access_key_id, :aws_secret_access_key => @secret_access_key, :region => @region)
      rds_details = {}
      rds_resource_ids.each do |key, value|
        rds_instance_details = rds.describe_db_instances(value)
        rds_details[key] = rds_instance_details.body["DescribeDBInstancesResult"]["DBInstances"][0] rescue nil
      end 
      return rds_details
    end
Get details of all RDS resources in a stack

 ==== Examples
   cloud = Cloudster::Cloud.new(
    :access_key_id => 'aws_access_key_id',
    :secret_access_key => 'aws_secret_access_key',
    :region => 'us-east-1'
   )
   cloud.get_rds_details(:stack_name => 'ShittyStack')

 ==== Parameters
 * options<~Hash>
   * :stack_name : A string which will contain the name of the stack

 ==== Returns
 * A hash of RDS details where the key is the logical name and value is the RDS detail