func generateMetadata(c *gc.C, stream string, versions ...version.Binary) []metadataFile {
var metadata = make([]*tools.ToolsMetadata, len(versions))
for i, vers := range versions {
basePath := fmt.Sprintf("%s/tools-%s.tar.gz", stream, vers.String())
metadata[i] = &tools.ToolsMetadata{
Release: vers.Series,
Version: vers.Number.String(),
Arch: vers.Arch,
Path: basePath,
}
}
var streamMetadata = map[string][]*tools.ToolsMetadata{
stream: metadata,
}
index, legacyIndex, products, err := tools.MarshalToolsMetadataJSON(streamMetadata, time.Now())
c.Assert(err, jc.ErrorIsNil)
objects := []metadataFile{
{simplestreams.UnsignedIndex("v1", 2), index},
}
if stream == "released" {
objects = append(objects, metadataFile{simplestreams.UnsignedIndex("v1", 1), legacyIndex})
}
for stream, metadata := range products {
objects = append(objects, metadataFile{tools.ProductMetadataPath(stream), metadata})
}
return objects
}
// WriteMetadata writes the given tools metadata for the specified streams to the given storage.
// streamMetadata contains all known metadata so that the correct index files can be written.
// Only product files for the specified streams are written.
func WriteMetadata(stor storage.Storage, streamMetadata map[string][]*ToolsMetadata, streams []string, writeMirrors ShouldWriteMirrors) error {
// TODO(perrito666) 2016-05-02 lp:1558657
updated := time.Now()
index, legacyIndex, products, err := MarshalToolsMetadataJSON(streamMetadata, updated)
if err != nil {
return err
}
metadataInfo := []MetadataFile{
{simplestreams.UnsignedIndex(currentStreamsVersion, IndexFileVersion), index},
}
if legacyIndex != nil {
metadataInfo = append(metadataInfo, MetadataFile{
simplestreams.UnsignedIndex(currentStreamsVersion, 1), legacyIndex,
})
}
for _, stream := range streams {
if metadata, ok := products[stream]; ok {
// If metadata hasn't changed, do not overwrite.
unchanged, err := metadataUnchanged(stor, stream, metadata)
if err != nil {
return err
}
if unchanged {
logger.Infof("Metadata for stream %q unchanged", stream)
continue
}
// Metadata is different, so include it.
metadataInfo = append(metadataInfo, MetadataFile{ProductMetadataPath(stream), metadata})
}
}
if writeMirrors {
streamsMirrorsMetadata := make(map[string][]simplestreams.MirrorReference)
for stream := range streamMetadata {
streamsMirrorsMetadata[ToolsContentId(stream)] = []simplestreams.MirrorReference{{
Updated: updated.Format("20060102"), // YYYYMMDD
DataType: ContentDownload,
Format: simplestreams.MirrorFormat,
Path: simplestreams.MirrorFile,
}}
}
mirrorsMetadata := map[string]map[string][]simplestreams.MirrorReference{
"mirrors": streamsMirrorsMetadata,
}
mirrorsInfo, err := json.MarshalIndent(&mirrorsMetadata, "", " ")
if err != nil {
return err
}
metadataInfo = append(
metadataInfo, MetadataFile{simplestreams.UnsignedMirror(currentStreamsVersion), mirrorsInfo})
}
return writeMetadataFiles(stor, metadataInfo)
}
// ParseMetadataFromStorage loads ImageMetadata from the specified storage reader.
func ParseMetadataFromStorage(c *gc.C, stor storage.StorageReader) []*imagemetadata.ImageMetadata {
source := storage.NewStorageSimpleStreamsDataSource("test storage reader", stor, "images")
// Find the simplestreams index file.
params := simplestreams.ValueParams{
DataType: "image-ids",
ValueTemplate: imagemetadata.ImageMetadata{},
}
const requireSigned = false
indexPath := simplestreams.UnsignedIndex("v1", 1)
mirrorsPath := simplestreams.MirrorsPath("v1")
indexRef, err := simplestreams.GetIndexWithFormat(
source, indexPath, "index:1.0", mirrorsPath, requireSigned, simplestreams.CloudSpec{}, params)
c.Assert(err, jc.ErrorIsNil)
c.Assert(indexRef.Indexes, gc.HasLen, 1)
imageIndexMetadata := indexRef.Indexes["com.ubuntu.cloud:custom"]
c.Assert(imageIndexMetadata, gc.NotNil)
// Read the products file contents.
r, err := stor.Get(path.Join("images", imageIndexMetadata.ProductsFilePath))
defer r.Close()
c.Assert(err, jc.ErrorIsNil)
data, err := ioutil.ReadAll(r)
c.Assert(err, jc.ErrorIsNil)
// Parse the products file metadata.
url, err := source.URL(imageIndexMetadata.ProductsFilePath)
c.Assert(err, jc.ErrorIsNil)
cloudMetadata, err := simplestreams.ParseCloudMetadata(data, "products:1.0", url, imagemetadata.ImageMetadata{})
c.Assert(err, jc.ErrorIsNil)
// Collate the metadata.
imageMetadataMap := make(map[string]*imagemetadata.ImageMetadata)
expectedProductIds, imageVersions := make(set.Strings), make(set.Strings)
for _, mc := range cloudMetadata.Products {
for _, items := range mc.Items {
for key, item := range items.Items {
imageMetadata := item.(*imagemetadata.ImageMetadata)
imageMetadataMap[key] = imageMetadata
imageVersions.Add(key)
productId := fmt.Sprintf("com.ubuntu.cloud:server:%s:%s", mc.Version, imageMetadata.Arch)
expectedProductIds.Add(productId)
}
}
}
// Make sure index's product IDs are all represented in the products metadata.
sort.Strings(imageIndexMetadata.ProductIds)
c.Assert(imageIndexMetadata.ProductIds, gc.DeepEquals, expectedProductIds.SortedValues())
imageMetadata := make([]*imagemetadata.ImageMetadata, len(imageMetadataMap))
for i, key := range imageVersions.SortedValues() {
imageMetadata[i] = imageMetadataMap[key]
}
return imageMetadata
}
func UseTestImageData(stor envstorage.Storage, cred *identity.Credentials) {
// Put some image metadata files into the public storage.
t := template.Must(template.New("").Parse(indexData))
var metadata bytes.Buffer
if err := t.Execute(&metadata, cred); err != nil {
panic(fmt.Errorf("cannot generate index metdata: %v", err))
}
data := metadata.Bytes()
stor.Put(simplestreams.UnsignedIndex("v1", 1), bytes.NewReader(data), int64(len(data)))
stor.Put(
productMetadatafile, strings.NewReader(imagesData), int64(len(imagesData)))
}
func generateMetadata(c *gc.C, stream string, versions ...version.Binary) []metadataFile {
var metadata = make([]*tools.ToolsMetadata, len(versions))
for i, vers := range versions {
basePath := fmt.Sprintf("%s/tools-%s.tar.gz", stream, vers.String())
metadata[i] = &tools.ToolsMetadata{
Release: vers.Series,
Version: vers.Number.String(),
Arch: vers.Arch,
Path: basePath,
}
}
var streamMetadata = map[string][]*tools.ToolsMetadata{
stream: metadata,
}
// TODO(perrito666) 2016-05-02 lp:1558657
index, legacyIndex, products, err := tools.MarshalToolsMetadataJSON(streamMetadata, time.Now())
c.Assert(err, jc.ErrorIsNil)
objects := []metadataFile{}
addTools := func(fileName string, content []byte) {
// add unsigned
objects = append(objects, metadataFile{fileName, content})
signedFilename, signedContent, err := sstesting.SignMetadata(fileName, content)
c.Assert(err, jc.ErrorIsNil)
// add signed
objects = append(objects, metadataFile{signedFilename, signedContent})
}
addTools(simplestreams.UnsignedIndex("v1", 2), index)
if stream == "released" {
addTools(simplestreams.UnsignedIndex("v1", 1), legacyIndex)
}
for stream, metadata := range products {
addTools(tools.ProductMetadataPath(stream), metadata)
}
return objects
}
// ParseIndexMetadataFromStorage loads Indices from the specified storage reader.
func ParseIndexMetadataFromStorage(c *gc.C, stor storage.StorageReader) (*simplestreams.IndexMetadata, simplestreams.DataSource) {
source := storage.NewStorageSimpleStreamsDataSource("test storage reader", stor, "images", simplestreams.DEFAULT_CLOUD_DATA, false)
// Find the simplestreams index file.
params := simplestreams.ValueParams{
DataType: "image-ids",
ValueTemplate: imagemetadata.ImageMetadata{},
}
const requireSigned = false
indexPath := simplestreams.UnsignedIndex("v1", 1)
mirrorsPath := simplestreams.MirrorsPath("v1")
indexRef, err := simplestreams.GetIndexWithFormat(
source, indexPath, "index:1.0", mirrorsPath, requireSigned, simplestreams.CloudSpec{}, params)
c.Assert(err, jc.ErrorIsNil)
c.Assert(indexRef.Indexes, gc.HasLen, 1)
imageIndexMetadata := indexRef.Indexes["com.ubuntu.cloud:custom"]
c.Assert(imageIndexMetadata, gc.NotNil)
return imageIndexMetadata, source
}
// ParseMetadataFromStorage loads ToolsMetadata from the specified storage reader.
func ParseMetadataFromStorage(c *gc.C, stor storage.StorageReader, stream string, expectMirrors bool) []*tools.ToolsMetadata {
source := storage.NewStorageSimpleStreamsDataSource("test storage reader", stor, "tools")
params := simplestreams.ValueParams{
DataType: tools.ContentDownload,
ValueTemplate: tools.ToolsMetadata{},
}
const requireSigned = false
indexPath := simplestreams.UnsignedIndex("v1", 2)
mirrorsPath := simplestreams.MirrorsPath("v1")
indexRef, err := simplestreams.GetIndexWithFormat(
source, indexPath, "index:1.0", mirrorsPath, requireSigned, simplestreams.CloudSpec{}, params)
c.Assert(err, jc.ErrorIsNil)
toolsIndexMetadata := indexRef.Indexes[tools.ToolsContentId(stream)]
c.Assert(toolsIndexMetadata, gc.NotNil)
// Read the products file contents.
r, err := stor.Get(path.Join("tools", toolsIndexMetadata.ProductsFilePath))
defer r.Close()
c.Assert(err, jc.ErrorIsNil)
data, err := ioutil.ReadAll(r)
c.Assert(err, jc.ErrorIsNil)
url, err := source.URL(toolsIndexMetadata.ProductsFilePath)
c.Assert(err, jc.ErrorIsNil)
cloudMetadata, err := simplestreams.ParseCloudMetadata(data, "products:1.0", url, tools.ToolsMetadata{})
c.Assert(err, jc.ErrorIsNil)
toolsMetadataMap := make(map[string]*tools.ToolsMetadata)
expectedProductIds := make(set.Strings)
toolsVersions := make(set.Strings)
for _, mc := range cloudMetadata.Products {
for _, items := range mc.Items {
for key, item := range items.Items {
toolsMetadata := item.(*tools.ToolsMetadata)
toolsMetadataMap[key] = toolsMetadata
toolsVersions.Add(key)
seriesVersion, err := series.SeriesVersion(toolsMetadata.Release)
if err != nil {
c.Assert(err, jc.Satisfies, series.IsUnknownSeriesVersionError)
}
productId := fmt.Sprintf("com.ubuntu.juju:%s:%s", seriesVersion, toolsMetadata.Arch)
expectedProductIds.Add(productId)
}
}
}
// Make sure index's product IDs are all represented in the products metadata.
sort.Strings(toolsIndexMetadata.ProductIds)
c.Assert(toolsIndexMetadata.ProductIds, gc.DeepEquals, expectedProductIds.SortedValues())
toolsMetadata := make([]*tools.ToolsMetadata, len(toolsMetadataMap))
for i, key := range toolsVersions.SortedValues() {
toolsMetadata[i] = toolsMetadataMap[key]
}
if expectMirrors {
r, err = stor.Get(path.Join("tools", simplestreams.UnsignedMirror("v1")))
c.Assert(err, jc.ErrorIsNil)
defer r.Close()
data, err = ioutil.ReadAll(r)
c.Assert(err, jc.ErrorIsNil)
c.Assert(string(data), jc.Contains, `"mirrors":`)
c.Assert(string(data), jc.Contains, tools.ToolsContentId(stream))
c.Assert(err, jc.ErrorIsNil)
}
return toolsMetadata
}
func RemoveTestImageData(stor envstorage.Storage) {
stor.Remove(simplestreams.UnsignedIndex("v1", 1))
stor.Remove(productMetadatafile)
}
// IndexStoragePath returns the storage path for the image metadata index file.
func IndexStoragePath() string {
return path.Join(storage.BaseImagesPath, simplestreams.UnsignedIndex(currentStreamsVersion, IndexFileVersion))
}