func (s *simplestreamsSuite) TestFetch(c *gc.C) {
for i, t := range fetchTests {
c.Logf("test %d", i)
cloudSpec := simplestreams.CloudSpec{t.region, "https://ec2.us-east-1.amazonaws.com"}
if t.region == "" {
cloudSpec = simplestreams.EmptyCloudSpec
}
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: cloudSpec,
Series: []string{"precise"},
Arches: t.arches,
})
// Add invalid datasource and check later that resolveInfo is correct.
invalidSource := simplestreams.NewURLDataSource("invalid", "file://invalid", utils.VerifySSLHostnames)
images, resolveInfo, err := imagemetadata.Fetch(
[]simplestreams.DataSource{invalidSource, s.Source}, simplestreams.DefaultIndexPath,
imageConstraint, s.RequireSigned)
if !c.Check(err, gc.IsNil) {
continue
}
for _, testImage := range t.images {
testImage.Version = t.version
}
c.Check(images, gc.DeepEquals, t.images)
c.Check(resolveInfo, gc.DeepEquals, &simplestreams.ResolveInfo{
Source: "test roundtripper",
Signed: s.RequireSigned,
IndexURL: "test:/streams/v1/index.json",
MirrorURL: "",
})
}
}
func (s *archSuite) TestSupportedArchitecturesMany(c *gc.C) {
env, cloudSpec := s.setupMetadata(c, []string{"ppc64", "amd64"})
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: cloudSpec,
})
arches, err := common.SupportedArchitectures(env, imageConstraint)
c.Assert(err, gc.IsNil)
c.Assert(arches, jc.SameContents, []string{"amd64", "ppc64"})
}
func (s *archSuite) TestSupportedArchitecturesNone(c *gc.C) {
env, cloudSpec := s.setupMetadata(c, nil)
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: cloudSpec,
})
arches, err := common.SupportedArchitectures(env, imageConstraint)
c.Assert(err, gc.IsNil)
c.Assert(arches, gc.HasLen, 0)
}
func (s *productSpecSuite) TestId(c *gc.C) {
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
Series: []string{"precise"},
Arches: []string{"amd64"},
Stream: "daily",
})
ids, err := imageConstraint.Ids()
c.Assert(err, gc.IsNil)
c.Assert(ids, gc.DeepEquals, []string{"com.ubuntu.cloud.daily:server:12.04:amd64"})
}
func (s *signedSuite) TestSignedImageMetadataInvalidSignature(c *gc.C) {
signedSource := simplestreams.NewURLDataSource("test", "signedtest://host/signed", utils.VerifySSLHostnames)
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{"us-east-1", "https://ec2.us-east-1.amazonaws.com"},
Series: []string{"precise"},
Arches: []string{"amd64"},
})
imagemetadata.SetSigningPublicKey(s.origKey)
_, _, err := imagemetadata.Fetch(
[]simplestreams.DataSource{signedSource}, simplestreams.DefaultIndexPath, imageConstraint, true)
c.Assert(err, gc.ErrorMatches, "cannot read index data.*")
}
func (s *productSpecSuite) TestIdWithDefaultStream(c *gc.C) {
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
Series: []string{"precise"},
Arches: []string{"amd64"},
})
for _, stream := range []string{"", "released"} {
imageConstraint.Stream = stream
ids, err := imageConstraint.Ids()
c.Assert(err, gc.IsNil)
c.Assert(ids, gc.DeepEquals, []string{"com.ubuntu.cloud:server:12.04:amd64"})
}
}
func (s *imageSuite) TestFindInstanceSpec(c *gc.C) {
for _, t := range findInstanceSpecTests {
c.Logf("test: %v", t.desc)
t.init()
cons := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{t.region, "ep"},
Series: []string{"precise"},
Arches: t.arches,
Stream: t.stream,
})
imageMeta, err := imagemetadata.GetLatestImageIdMetadata(
[]byte(jsonImagesContent),
simplestreams.NewURLDataSource("test", "some-url", utils.VerifySSLHostnames), cons)
c.Assert(err, gc.IsNil)
var images []Image
for _, imageMetadata := range imageMeta {
im := *imageMetadata
images = append(images, Image{
Id: im.Id,
VirtType: im.VirtType,
Arch: im.Arch,
})
}
imageCons := constraints.MustParse(t.constraints)
spec, err := FindInstanceSpec(images, &InstanceConstraint{
Series: "precise",
Region: t.region,
Arches: t.arches,
Constraints: imageCons,
}, t.instanceTypes)
if t.err != "" {
c.Check(err, gc.ErrorMatches, t.err)
continue
} else {
if !c.Check(err, gc.IsNil) {
continue
}
c.Check(spec.Image.Id, gc.Equals, t.imageId)
if len(t.instanceTypes) == 1 {
c.Check(spec.InstanceType, gc.DeepEquals, t.instanceTypes[0])
}
if imageCons.HasInstanceType() {
c.Assert(spec.InstanceType.Name, gc.Equals, *imageCons.InstanceType)
}
}
}
}
func registerSimpleStreamsTests() {
gc.Suite(&simplestreamsSuite{
LocalLiveSimplestreamsSuite: sstesting.LocalLiveSimplestreamsSuite{
Source: simplestreams.NewURLDataSource(
"test roundtripper", "test:", utils.VerifySSLHostnames),
RequireSigned: false,
DataType: imagemetadata.ImageIds,
ValidConstraint: imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{
Region: "us-east-1",
Endpoint: "https://ec2.us-east-1.amazonaws.com",
},
Series: []string{"precise"},
Arches: []string{"amd64", "arm"},
}),
},
})
gc.Suite(&signedSuite{})
}
func (s *signedSuite) TestSignedImageMetadata(c *gc.C) {
signedSource := simplestreams.NewURLDataSource("test", "signedtest://host/signed", utils.VerifySSLHostnames)
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{"us-east-1", "https://ec2.us-east-1.amazonaws.com"},
Series: []string{"precise"},
Arches: []string{"amd64"},
})
images, resolveInfo, err := imagemetadata.Fetch(
[]simplestreams.DataSource{signedSource}, simplestreams.DefaultIndexPath, imageConstraint, true)
c.Assert(err, gc.IsNil)
c.Assert(len(images), gc.Equals, 1)
c.Assert(images[0].Id, gc.Equals, "ami-123456")
c.Check(resolveInfo, gc.DeepEquals, &simplestreams.ResolveInfo{
Source: "test",
Signed: true,
IndexURL: "signedtest://host/signed/streams/v1/index.sjson",
MirrorURL: "",
})
}
// findInstanceSpec returns an image and instance type satisfying the constraint.
// The instance type comes from querying the flavors supported by the deployment.
func findInstanceSpec(e *environ, ic *instances.InstanceConstraint) (*instances.InstanceSpec, error) {
// first construct all available instance types from the supported flavors.
nova := e.nova()
flavors, err := nova.ListFlavorsDetail()
if err != nil {
return nil, err
}
allInstanceTypes := []instances.InstanceType{}
for _, flavor := range flavors {
instanceType := instances.InstanceType{
Id: flavor.Id,
Name: flavor.Name,
Arches: ic.Arches,
Mem: uint64(flavor.RAM),
CpuCores: uint64(flavor.VCPUs),
RootDisk: uint64(flavor.Disk * 1024),
// tags not currently supported on openstack
}
allInstanceTypes = append(allInstanceTypes, instanceType)
}
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{ic.Region, e.ecfg().authURL()},
Series: []string{ic.Series},
Arches: ic.Arches,
Stream: e.Config().ImageStream(),
})
sources, err := imagemetadata.GetMetadataSources(e)
if err != nil {
return nil, err
}
// TODO (wallyworld): use an env parameter (default true) to mandate use of only signed image metadata.
matchingImages, _, err := imagemetadata.Fetch(sources, simplestreams.DefaultIndexPath, imageConstraint, false)
if err != nil {
return nil, err
}
images := instances.ImageMetadataToImages(matchingImages)
spec, err := instances.FindInstanceSpec(images, ic, allInstanceTypes)
if err != nil {
return nil, err
}
return spec, nil
}
// 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)
}
// SupportedArchitectures is specified on the EnvironCapability interface.
func (env *joyentEnviron) SupportedArchitectures() ([]string, error) {
env.archLock.Lock()
defer env.archLock.Unlock()
if env.supportedArchitectures != nil {
return env.supportedArchitectures, nil
}
cfg := env.Ecfg()
// Create a filter to get all images from our region and for the correct stream.
cloudSpec := simplestreams.CloudSpec{
Region: cfg.Region(),
Endpoint: cfg.SdcUrl(),
}
imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: cloudSpec,
Stream: cfg.ImageStream(),
})
var err error
env.supportedArchitectures, err = common.SupportedArchitectures(env, imageConstraint)
return env.supportedArchitectures, err
}
func Test(t *testing.T) {
if *live {
if *vendor == "" {
t.Fatal("missing vendor")
}
var ok bool
var testData liveTestData
if testData, ok = liveUrls[*vendor]; !ok {
keys := reflect.ValueOf(liveUrls).MapKeys()
t.Fatalf("Unknown vendor %s. Must be one of %s", *vendor, keys)
}
registerLiveSimpleStreamsTests(testData.baseURL, imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: testData.validCloudSpec,
Series: []string{"quantal"},
Arches: []string{"amd64"},
}), testData.requireSigned)
}
registerSimpleStreamsTests()
gc.TestingT(t)
}
// findMatchingImages queries simplestreams for OS images that match the given
// requirements.
//
// If it finds no matching images, that's an error.
func findMatchingImages(e *azureEnviron, location, series string, arches []string) ([]*imagemetadata.ImageMetadata, error) {
endpoint := getEndpoint(location)
constraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{location, endpoint},
Series: []string{series},
Arches: arches,
Stream: e.Config().ImageStream(),
})
sources, err := imagemetadata.GetMetadataSources(e)
if err != nil {
return nil, err
}
indexPath := simplestreams.DefaultIndexPath
images, _, err := imagemetadata.Fetch(sources, indexPath, constraint, signedImageDataOnly)
if len(images) == 0 || errors.IsNotFound(err) {
return nil, fmt.Errorf("no OS images found for location %q, series %q, architectures %q (and endpoint: %q)", location, series, arches, endpoint)
} else if err != nil {
return nil, err
}
return images, nil
}
