// findInstanceSpec returns an InstanceSpec satisfying the supplied instanceConstraint.
func findInstanceSpec(
allImageMetadata []*imagemetadata.ImageMetadata,
ic *instances.InstanceConstraint,
) (*instances.InstanceSpec, error) {
// If the instance type is set, don't also set a default CPU power
// as this is implied.
cons := ic.Constraints
if cons.CpuPower == nil && (cons.InstanceType == nil || *cons.InstanceType == "") {
ic.Constraints.CpuPower = instances.CpuPower(defaultCpuPower)
}
suitableImages := filterImages(allImageMetadata, ic)
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)
}
func (s *environBrokerSuite) SetUpTest(c *gc.C) {
s.BaseSuite.SetUpTest(c)
mem := uint64(3750)
amd64 := arch.AMD64
cpuCores := uint64(1)
rootDiskMB := uint64(5)
zoneName := "home-zone"
s.hardware = &instance.HardwareCharacteristics{
Arch: &amd64,
Mem: &mem,
CpuCores: &cpuCores,
CpuPower: instances.CpuPower(275),
RootDisk: &rootDiskMB,
AvailabilityZone: &zoneName,
}
s.spec = &instances.InstanceSpec{
InstanceType: s.InstanceType,
Image: instances.Image{
Id: "ubuntu-1404-trusty-v20141212",
Arch: amd64,
VirtType: "kvm",
},
}
s.ic = &instances.InstanceConstraint{
Region: "home",
Series: "trusty",
Arches: []string{amd64},
Constraints: s.StartInstArgs.Constraints,
}
s.imageMetadata = []*imagemetadata.ImageMetadata{{
Id: "ubuntu-1404-trusty-v20141212",
Arch: "amd64",
Version: "14.04",
RegionName: "us-central1",
Endpoint: "https://www.googleapis.com",
Stream: "<stream>",
VirtType: "kvm",
}}
s.resolveInfo = &simplestreams.ResolveInfo{
Source: "",
Signed: true,
IndexURL: "",
MirrorURL: "",
}
}
// findInstanceSpec returns an InstanceSpec satisfying the supplied instanceConstraint.
func findInstanceSpec(
sources []simplestreams.DataSource, stream string, ic *instances.InstanceConstraint) (*instances.InstanceSpec, error) {
// If the instance type is set, don't also set a default CPU power
// as this is implied.
cons := ic.Constraints
if cons.CpuPower == nil && (cons.InstanceType == nil || *cons.InstanceType == "") {
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, 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, ic)
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)
}
arches = []string{arch.AMD64}
)
// Instance types are not associated with disks in GCE, so we do not
// set RootDisk.
// TODO(ericsnow) Dynamically generate the type specs from the official
// JSON file.
// Shared-core machine types.
var allInstanceTypes = []instances.InstanceType{
{ // Standard machine types
Name: "n1-standard-1",
Arches: arches,
CpuCores: 1,
CpuPower: instances.CpuPower(275),
Mem: 3750,
VirtType: &vtype,
}, {
Name: "n1-standard-2",
Arches: arches,
CpuCores: 2,
CpuPower: instances.CpuPower(550),
Mem: 7500,
VirtType: &vtype,
}, {
Name: "n1-standard-4",
Arches: arches,
CpuCores: 4,
CpuPower: instances.CpuPower(1100),
Mem: 15000,
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: ¶virtual,
}, {
Name: "m1.medium",
Arches: both,
CpuCores: 1,
CpuPower: instances.CpuPower(200),
Mem: 3840,
VirtType: ¶virtual,
}, {
Name: "m1.large",
Arches: amd64,
CpuCores: 2,
CpuPower: instances.CpuPower(400),
Mem: 7680,
