Golang Volume.Tag Examples

Example #1

File: volumes.go Project: bac/juju

// VolumeParams returns the parameters for creating or destroying
// the given volume.
func VolumeParams(
	v state.Volume,
	storageInstance state.StorageInstance,
	modelUUID, controllerUUID string,
	environConfig *config.Config,
	poolManager poolmanager.PoolManager,
	registry storage.ProviderRegistry,
) (params.VolumeParams, error) {

	var pool string
	var size uint64
	if stateVolumeParams, ok := v.Params(); ok {
		pool = stateVolumeParams.Pool
		size = stateVolumeParams.Size
	} else {
		volumeInfo, err := v.Info()
		if err != nil {
			return params.VolumeParams{}, errors.Trace(err)
		}
		pool = volumeInfo.Pool
		size = volumeInfo.Size
	}

	volumeTags, err := storageTags(storageInstance, modelUUID, controllerUUID, environConfig)
	if err != nil {
		return params.VolumeParams{}, errors.Annotate(err, "computing storage tags")
	}

	providerType, cfg, err := StoragePoolConfig(pool, poolManager, registry)
	if err != nil {
		return params.VolumeParams{}, errors.Trace(err)
	}
	return params.VolumeParams{
		v.Tag().String(),
		size,
		string(providerType),
		cfg.Attrs(),
		volumeTags,
		nil, // attachment params set by the caller
	}, nil
}