Пример #1
0
func checkFileHasContents(c *gc.C, stor storage.StorageReader, name string, contents []byte, attempt utils.AttemptStrategy) {
	r, err := storage.GetWithRetry(stor, name, attempt)
	c.Assert(err, gc.IsNil)
	c.Check(r, gc.NotNil)
	defer r.Close()

	data, err := ioutil.ReadAll(r)
	c.Check(err, gc.IsNil)
	c.Check(data, gc.DeepEquals, contents)

	url, err := stor.URL(name)
	c.Assert(err, gc.IsNil)

	var resp *http.Response
	for a := attempt.Start(); a.Next(); {
		resp, err = utils.GetValidatingHTTPClient().Get(url)
		c.Assert(err, gc.IsNil)
		if resp.StatusCode != 404 {
			break
		}
		c.Logf("get retrying after earlier get succeeded. *sigh*.")
	}
	c.Assert(err, gc.IsNil)
	data, err = ioutil.ReadAll(resp.Body)
	c.Assert(err, gc.IsNil)
	defer resp.Body.Close()
	c.Assert(resp.StatusCode, gc.Equals, 200, gc.Commentf("error response: %s", data))
	c.Check(data, gc.DeepEquals, contents)
}
Пример #2
0
// 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
	indexRef, err := simplestreams.GetIndexWithFormat(
		source, indexPath, "index:1.0", requireSigned, simplestreams.CloudSpec{}, params)
	c.Assert(err, gc.IsNil)
	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, gc.IsNil)
	data, err := ioutil.ReadAll(r)
	c.Assert(err, gc.IsNil)

	// Parse the products file metadata.
	url, err := source.URL(imageIndexMetadata.ProductsFilePath)
	c.Assert(err, gc.IsNil)
	cloudMetadata, err := simplestreams.ParseCloudMetadata(data, "products:1.0", url, imagemetadata.ImageMetadata{})
	c.Assert(err, gc.IsNil)

	// Collate the metadata.
	imageMetadataMap := make(map[string]*imagemetadata.ImageMetadata)
	var expectedProductIds set.Strings
	var imageVersions 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
}
Пример #3
0
// ReadList returns a List of the tools in store with the given major.minor version.
// If minorVersion = -1, then only majorVersion is considered.
// If store contains no such tools, it returns ErrNoMatches.
func ReadList(stor storage.StorageReader, majorVersion, minorVersion int) (coretools.List, error) {
	if minorVersion >= 0 {
		logger.Debugf("reading v%d.%d tools", majorVersion, minorVersion)
	} else {
		logger.Debugf("reading v%d.* tools", majorVersion)
	}
	names, err := storage.List(stor, toolPrefix)
	if err != nil {
		return nil, err
	}
	var list coretools.List
	var foundAnyTools bool
	for _, name := range names {
		if !strings.HasPrefix(name, toolPrefix) || !strings.HasSuffix(name, toolSuffix) {
			continue
		}
		var t coretools.Tools
		vers := name[len(toolPrefix) : len(name)-len(toolSuffix)]
		if t.Version, err = version.ParseBinary(vers); err != nil {
			logger.Debugf("failed to parse version %q: %v", vers, err)
			continue
		}
		foundAnyTools = true
		// Major version must match specified value.
		if t.Version.Major != majorVersion {
			continue
		}
		// If specified minor version value supplied, minor version must match.
		if minorVersion >= 0 && t.Version.Minor != minorVersion {
			continue
		}
		logger.Debugf("found %s", vers)
		if t.URL, err = stor.URL(name); err != nil {
			return nil, err
		}
		list = append(list, &t)
	}
	if len(list) == 0 {
		if foundAnyTools {
			return nil, coretools.ErrNoMatches
		}
		return nil, ErrNoTools
	}
	return list, nil
}
Пример #4
0
func checkFileHasContents(c *gc.C, stor storage.StorageReader, name string, contents []byte) {
	r, err := storage.Get(stor, name)
	c.Assert(err, gc.IsNil)
	c.Check(r, gc.NotNil)
	defer r.Close()
	data, err := ioutil.ReadAll(r)
	c.Check(err, gc.IsNil)
	c.Check(data, gc.DeepEquals, contents)

	url, err := stor.URL(name)
	c.Assert(err, gc.IsNil)
	resp, err := http.Get(url)
	c.Assert(err, gc.IsNil)
	data, err = ioutil.ReadAll(resp.Body)
	c.Assert(err, gc.IsNil)
	defer resp.Body.Close()
	c.Assert(resp.StatusCode, gc.Equals, http.StatusOK, gc.Commentf("error response: %s", data))
	c.Check(data, gc.DeepEquals, contents)
}
Пример #5
0
// ParseMetadataFromStorage loads ToolsMetadata from the specified storage reader.
func ParseMetadataFromStorage(c *gc.C, stor storage.StorageReader, 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
	indexRef, err := simplestreams.GetIndexWithFormat(
		source, indexPath, "index:1.0", requireSigned, simplestreams.CloudSpec{}, params)
	c.Assert(err, gc.IsNil)
	c.Assert(indexRef.Indexes, gc.HasLen, 1)

	toolsIndexMetadata := indexRef.Indexes["com.ubuntu.juju:released:tools"]
	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, gc.IsNil)
	data, err := ioutil.ReadAll(r)
	c.Assert(err, gc.IsNil)

	url, err := source.URL(toolsIndexMetadata.ProductsFilePath)
	c.Assert(err, gc.IsNil)
	cloudMetadata, err := simplestreams.ParseCloudMetadata(data, "products:1.0", url, tools.ToolsMetadata{})
	c.Assert(err, gc.IsNil)

	toolsMetadataMap := make(map[string]*tools.ToolsMetadata)
	var expectedProductIds set.Strings
	var toolsVersions 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 := ubuntu.SeriesVersion(toolsMetadata.Release)
				c.Assert(err, gc.IsNil)
				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))
		defer r.Close()
		c.Assert(err, gc.IsNil)
		data, err = ioutil.ReadAll(r)
		c.Assert(err, gc.IsNil)
		c.Assert(string(data), jc.Contains, `"mirrors":`)
		c.Assert(err, gc.IsNil)
	}
	return toolsMetadata
}