func()

in pkg/ec2helper/ec2helper.go [1062:1118]

• 43 lines of code
• 10 McCabe index (conditional complexity)

func (h *EC2Helper) GetDefaultSimpleConfig() (*config.SimpleInfo, error) {
	simpleConfig := config.NewSimpleInfo()
	simpleConfig.Region = *h.Sess.Config.Region

	// get info about the instance type
	simpleConfig.InstanceType = "t2.micro"
	defaultInstanceType, err := h.GetDefaultFreeTierInstanceType()
	if err != nil {
		return nil, err
	}
	if defaultInstanceType != nil {
		simpleConfig.InstanceType = *defaultInstanceType.InstanceType
	}

	instanceTypeInfo, err := h.GetInstanceType(simpleConfig.InstanceType)
	if err != nil {
		return nil, err
	}

	// Use instance-store if supported
	rootDeviceType := "ebs"
	if *instanceTypeInfo.InstanceStorageSupported {
		rootDeviceType = "instance-store"
	}

	image, err := h.GetDefaultImage(&rootDeviceType)
	if err != nil {
		return nil, err
	}

	simpleConfig.ImageId = *image.ImageId

	vpc, err := h.getDefaultVpc()
	if err != nil {
		return nil, err
	}

	// Only set up network configuration when default VPC exists
	if vpc != nil {
		// Simply get all subnets and pick the first available subnet
		subnets, err := h.GetSubnetsByVpc(*vpc.VpcId)
		if err != nil {
			return nil, err
		}
		subnet := subnets[0]
		simpleConfig.SubnetId = *subnet.SubnetId

		// Get the default security group
		defaultSg, err := h.getDefaultSecurityGroup(*vpc.VpcId)
		if err != nil {
			return nil, err
		}
		simpleConfig.SecurityGroupIds = []string{*defaultSg.GroupId}
	}

	return simpleConfig, nil
}