Golang Metadata.Series方法代码示例

// storeImageMetadataInState writes image metadata into state store.
func storeImageMetadataInState(st *state.State, source string, priority int, existingMetadata []*imagemetadata.ImageMetadata) error {
	if len(existingMetadata) == 0 {
		return nil
	}
	metadataState := make([]cloudimagemetadata.Metadata, len(existingMetadata))
	for i, one := range existingMetadata {
		m := cloudimagemetadata.Metadata{
			cloudimagemetadata.MetadataAttributes{
				Stream:          one.Stream,
				Region:          one.RegionName,
				Arch:            one.Arch,
				VirtType:        one.VirtType,
				RootStorageType: one.Storage,
				Source:          source,
			},
			priority,
			one.Id,
		}
		s, err := seriesFromVersion(one.Version)
		if err != nil {
			return errors.Annotatef(err, "cannot determine series for version %v", one.Version)
		}
		m.Series = s
		metadataState[i] = m
	}
	if err := st.CloudImageMetadataStorage.SaveMetadata(metadataState); err != nil {
		return errors.Annotatef(err, "cannot cache image metadata")
	}
	return nil
}

// saveCustomImageMetadata reads the custom image metadata from disk,
// and saves it in state server.
func (c *BootstrapCommand) saveCustomImageMetadata(st *state.State) error {
	logger.Debugf("saving custom image metadata from %q", c.ImageMetadataDir)

	baseURL := fmt.Sprintf("file://%s", filepath.ToSlash(c.ImageMetadataDir))
	datasource := simplestreams.NewURLDataSource("bootstrap metadata", baseURL, utils.NoVerifySSLHostnames)

	// Read the image metadata, as we'll want to upload it to the environment.
	imageConstraint := imagemetadata.NewImageConstraint(simplestreams.LookupParams{})
	existingMetadata, _, err := imagemetadata.Fetch(
		[]simplestreams.DataSource{datasource}, imageConstraint, false)
	if err != nil && !errors.IsNotFound(err) {
		return errors.Annotate(err, "cannot read image metadata")
	}

	if len(existingMetadata) == 0 {
		return nil
	}
	msg := ""
	for _, one := range existingMetadata {
		m := cloudimagemetadata.Metadata{
			cloudimagemetadata.MetadataAttributes{
				Stream:          one.Stream,
				Region:          one.RegionName,
				Arch:            one.Arch,
				VirtType:        one.VirtType,
				RootStorageType: one.Storage,
				Source:          "custom",
			},
			one.Id,
		}
		s, err := seriesFromVersion(one.Version)
		if err != nil {
			return errors.Annotatef(err, "cannot determine series for version %v", one.Version)
		}
		m.Series = s
		err = st.CloudImageMetadataStorage.SaveMetadata(m)
		if err != nil {
			return errors.Annotatef(err, "cannot cache image metadata %v", m)
		}
	}
	if len(msg) > 0 {
		return errors.New(msg)
	}
	return nil
}

func (api *API) parseMetadataFromParams(p params.CloudImageMetadata, env environs.Environ) (cloudimagemetadata.Metadata, error) {
	result := cloudimagemetadata.Metadata{
		cloudimagemetadata.MetadataAttributes{
			Stream:          p.Stream,
			Region:          p.Region,
			Version:         p.Version,
			Series:          p.Series,
			Arch:            p.Arch,
			VirtType:        p.VirtType,
			RootStorageType: p.RootStorageType,
			RootStorageSize: p.RootStorageSize,
			Source:          p.Source,
		},
		p.Priority,
		p.ImageId,
	}

	// Fill in any required default values.
	if p.Stream == "" {
		result.Stream = env.Config().ImageStream()
	}
	if p.Source == "" {
		result.Source = "custom"
	}
	if result.Arch == "" {
		result.Arch = "amd64"
	}
	if result.Series == "" {
		result.Series = config.PreferredSeries(env.Config())
	}
	if result.Region == "" {
		// If the env supports regions, use the env default.
		if r, ok := env.(simplestreams.HasRegion); ok {
			spec, err := r.Region()
			if err != nil {
				return cloudimagemetadata.Metadata{}, errors.Annotatef(err, "getting cloud region")
			}
			result.Region = spec.Region
		}
	}
	return result, nil
}

// storeImageMetadataInState writes image metadata into state store.
func storeImageMetadataInState(st *state.State, env environs.Environ, source string, priority int, existingMetadata []*imagemetadata.ImageMetadata) error {
	if len(existingMetadata) == 0 {
		return nil
	}
	cfg := env.Config()
	metadataState := make([]cloudimagemetadata.Metadata, len(existingMetadata))
	for i, one := range existingMetadata {
		m := cloudimagemetadata.Metadata{
			MetadataAttributes: cloudimagemetadata.MetadataAttributes{
				Stream:          one.Stream,
				Region:          one.RegionName,
				Arch:            one.Arch,
				VirtType:        one.VirtType,
				RootStorageType: one.Storage,
				Source:          source,
				Version:         one.Version,
			},
			Priority: priority,
			ImageId:  one.Id,
		}
		s, err := seriesFromVersion(one.Version)
		if err != nil {
			return errors.Annotatef(err, "cannot determine series for version %v", one.Version)
		}
		m.Series = s
		if m.Stream == "" {
			m.Stream = cfg.ImageStream()
		}
		if m.Source == "" {
			m.Source = "custom"
		}
		metadataState[i] = m
	}
	if err := st.CloudImageMetadataStorage.SaveMetadata(metadataState); err != nil {
		return errors.Annotatef(err, "cannot cache image metadata")
	}
	return nil
}