Golang CpuPower Examples

Example #1

File: image.go Project: jameinel/core

// findInstanceSpec returns an InstanceSpec satisfying the supplied instanceConstraint.
func findInstanceSpec(
	sources []simplestreams.DataSource, stream string, ic *instances.InstanceConstraint) (*instances.InstanceSpec, error) {

	if ic.Constraints.CpuPower == nil {
		ic.Constraints.CpuPower = instances.CpuPower(defaultCpuPower)
	}
	ec2Region := allRegions[ic.Region]
	imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
		CloudSpec: simplestreams.CloudSpec{ic.Region, ec2Region.EC2Endpoint},
		Series:    []string{ic.Series},
		Arches:    ic.Arches,
		Stream:    stream,
	})
	matchingImages, _, err := imagemetadata.Fetch(
		sources, simplestreams.DefaultIndexPath, imageConstraint, signedImageDataOnly)
	if err != nil {
		return nil, err
	}
	if len(matchingImages) == 0 {
		logger.Warningf("no matching image meta data for constraints: %v", ic)
	}
	suitableImages := filterImages(matchingImages)
	images := instances.ImageMetadataToImages(suitableImages)

	// Make a copy of the known EC2 instance types, filling in the cost for the specified region.
	regionCosts := allRegionCosts[ic.Region]
	if len(regionCosts) == 0 && len(allRegionCosts) > 0 {
		return nil, fmt.Errorf("no instance types found in %s", ic.Region)
	}

	var itypesWithCosts []instances.InstanceType
	for _, itype := range allInstanceTypes {
		cost, ok := regionCosts[itype.Name]
		if !ok {
			continue
		}
		itWithCost := itype
		itWithCost.Cost = cost
		itypesWithCosts = append(itypesWithCosts, itWithCost)
	}
	return instances.FindInstanceSpec(images, ic, itypesWithCosts)
}

Example #2

File: instancetype.go Project: jameinel/core

	both  = []string{arch.AMD64, arch.I386}
)

// allRegions is defined here to allow tests to override the content.
var allRegions = aws.Regions

// allInstanceTypes holds the relevant attributes of every known
// instance type.
// Note that while the EC2 root disk default is 8G, constraints on disk
// for amazon will simply cause the root disk to grow to match the constraint
var allInstanceTypes = []instances.InstanceType{
	{ // General purpose, 1st generation.
		Name:     "m1.small",
		Arches:   both,
		CpuCores: 1,
		CpuPower: instances.CpuPower(100),
		Mem:      1740,
		VirtType: &paravirtual,
	}, {
		Name:     "m1.medium",
		Arches:   both,
		CpuCores: 1,
		CpuPower: instances.CpuPower(200),
		Mem:      3840,
		VirtType: &paravirtual,
	}, {
		Name:     "m1.large",
		Arches:   amd64,
		CpuCores: 2,
		CpuPower: instances.CpuPower(400),
		Mem:      7680,