Пример #1
0
// FilesystemAttachmentParams returns the parameters for creating the filesystem
// attachments with the specified IDs.
func (s *StorageProvisionerAPI) FilesystemAttachmentParams(
	args params.MachineStorageIds,
) (params.FilesystemAttachmentParamsResults, error) {
	canAccess, err := s.getAttachmentAuthFunc()
	if err != nil {
		return params.FilesystemAttachmentParamsResults{}, common.ServerError(common.ErrPerm)
	}
	results := params.FilesystemAttachmentParamsResults{
		Results: make([]params.FilesystemAttachmentParamsResult, len(args.Ids)),
	}
	poolManager := poolmanager.New(s.settings)
	one := func(arg params.MachineStorageId) (params.FilesystemAttachmentParams, error) {
		filesystemAttachment, err := s.oneFilesystemAttachment(arg, canAccess)
		if err != nil {
			return params.FilesystemAttachmentParams{}, err
		}
		instanceId, err := s.st.MachineInstanceId(filesystemAttachment.Machine())
		if errors.IsNotProvisioned(err) {
			// The worker must watch for machine provisioning events.
			instanceId = ""
		} else if err != nil {
			return params.FilesystemAttachmentParams{}, err
		}
		filesystem, err := s.st.Filesystem(filesystemAttachment.Filesystem())
		if err != nil {
			return params.FilesystemAttachmentParams{}, err
		}
		var filesystemId string
		var pool string
		if filesystemParams, ok := filesystem.Params(); ok {
			pool = filesystemParams.Pool
		} else {
			filesystemInfo, err := filesystem.Info()
			if err != nil {
				return params.FilesystemAttachmentParams{}, err
			}
			filesystemId = filesystemInfo.FilesystemId
			pool = filesystemInfo.Pool
		}
		providerType, _, err := storagecommon.StoragePoolConfig(pool, poolManager)
		if err != nil {
			return params.FilesystemAttachmentParams{}, errors.Trace(err)
		}
		var location string
		var readOnly bool
		if filesystemAttachmentParams, ok := filesystemAttachment.Params(); ok {
			location = filesystemAttachmentParams.Location
			readOnly = filesystemAttachmentParams.ReadOnly
		} else {
			// Attachment parameters may be requested even if the
			// attachment exists; i.e. for reattachment.
			filesystemAttachmentInfo, err := filesystemAttachment.Info()
			if err != nil {
				return params.FilesystemAttachmentParams{}, errors.Trace(err)
			}
			location = filesystemAttachmentInfo.MountPoint
			readOnly = filesystemAttachmentInfo.ReadOnly
		}
		return params.FilesystemAttachmentParams{
			filesystemAttachment.Filesystem().String(),
			filesystemAttachment.Machine().String(),
			filesystemId,
			string(instanceId),
			string(providerType),
			// TODO(axw) dealias MountPoint. We now have
			// Path, MountPoint and Location in different
			// parts of the codebase.
			location,
			readOnly,
		}, nil
	}
	for i, arg := range args.Ids {
		var result params.FilesystemAttachmentParamsResult
		filesystemAttachment, err := one(arg)
		if err != nil {
			result.Error = common.ServerError(err)
		} else {
			result.Result = filesystemAttachment
		}
		results.Results[i] = result
	}
	return results, nil
}
Пример #2
0
// VolumeAttachmentParams returns the parameters for creating the volume
// attachments with the specified IDs.
func (s *StorageProvisionerAPI) VolumeAttachmentParams(
	args params.MachineStorageIds,
) (params.VolumeAttachmentParamsResults, error) {
	canAccess, err := s.getAttachmentAuthFunc()
	if err != nil {
		return params.VolumeAttachmentParamsResults{}, common.ServerError(common.ErrPerm)
	}
	results := params.VolumeAttachmentParamsResults{
		Results: make([]params.VolumeAttachmentParamsResult, len(args.Ids)),
	}
	poolManager := poolmanager.New(s.settings)
	one := func(arg params.MachineStorageId) (params.VolumeAttachmentParams, error) {
		volumeAttachment, err := s.oneVolumeAttachment(arg, canAccess)
		if err != nil {
			return params.VolumeAttachmentParams{}, err
		}
		instanceId, err := s.st.MachineInstanceId(volumeAttachment.Machine())
		if errors.IsNotProvisioned(err) {
			// The worker must watch for machine provisioning events.
			instanceId = ""
		} else if err != nil {
			return params.VolumeAttachmentParams{}, err
		}
		volume, err := s.st.Volume(volumeAttachment.Volume())
		if err != nil {
			return params.VolumeAttachmentParams{}, err
		}
		var volumeId string
		var pool string
		if volumeParams, ok := volume.Params(); ok {
			pool = volumeParams.Pool
		} else {
			volumeInfo, err := volume.Info()
			if err != nil {
				return params.VolumeAttachmentParams{}, err
			}
			volumeId = volumeInfo.VolumeId
			pool = volumeInfo.Pool
		}
		providerType, _, err := storagecommon.StoragePoolConfig(pool, poolManager)
		if err != nil {
			return params.VolumeAttachmentParams{}, errors.Trace(err)
		}
		var readOnly bool
		if volumeAttachmentParams, ok := volumeAttachment.Params(); ok {
			readOnly = volumeAttachmentParams.ReadOnly
		} else {
			// Attachment parameters may be requested even if the
			// attachment exists; i.e. for reattachment.
			volumeAttachmentInfo, err := volumeAttachment.Info()
			if err != nil {
				return params.VolumeAttachmentParams{}, errors.Trace(err)
			}
			readOnly = volumeAttachmentInfo.ReadOnly
		}
		return params.VolumeAttachmentParams{
			volumeAttachment.Volume().String(),
			volumeAttachment.Machine().String(),
			volumeId,
			string(instanceId),
			string(providerType),
			readOnly,
		}, nil
	}
	for i, arg := range args.Ids {
		var result params.VolumeAttachmentParamsResult
		volumeAttachment, err := one(arg)
		if err != nil {
			result.Error = common.ServerError(err)
		} else {
			result.Result = volumeAttachment
		}
		results.Results[i] = result
	}
	return results, nil
}