func (s *storageAttachmentInfoSuite) TestStorageAttachmentInfoMissingBlockDevice(c *gc.C) {
// If the block device has not shown up yet,
// then we should get a NotProvisioned error.
s.blockDevices = nil
s.volumeAttachment.info.DeviceName = "sda"
_, err := storagecommon.StorageAttachmentInfo(s.st, s.storageAttachment, s.machineTag)
c.Assert(err, jc.Satisfies, errors.IsNotProvisioned)
s.st.CheckCallNames(c, "StorageInstance", "StorageInstanceVolume", "VolumeAttachment", "BlockDevices")
}
func (s *storageAttachmentInfoSuite) TestStorageAttachmentInfoNoBlockDevice(c *gc.C) {
// Neither the volume nor the volume attachment has enough information
// to persistently identify the path, so we must enquire about block
// devices; there are none (yet), so NotProvisioned is returned.
s.volumeAttachment.info.BusAddress = "scsi@1:2.3.4"
_, err := storagecommon.StorageAttachmentInfo(s.st, s.storageAttachment, s.machineTag)
c.Assert(err, jc.Satisfies, errors.IsNotProvisioned)
s.st.CheckCallNames(c, "StorageInstance", "StorageInstanceVolume", "VolumeAttachment", "BlockDevices")
}
func (s *storageAttachmentInfoSuite) TestStorageAttachmentInfoPersistentDeviceLink(c *gc.C) {
s.volumeAttachment.info.DeviceLink = "/dev/disk/by-id/verbatim"
info, err := storagecommon.StorageAttachmentInfo(s.st, s.storageAttachment, s.machineTag)
c.Assert(err, jc.ErrorIsNil)
s.st.CheckCallNames(c, "StorageInstance", "StorageInstanceVolume", "VolumeAttachment", "BlockDevices")
c.Assert(info, jc.DeepEquals, &storage.StorageAttachmentInfo{
Kind: storage.StorageKindBlock,
Location: "/dev/disk/by-id/verbatim",
})
}
func (s *storageAttachmentInfoSuite) TestStorageAttachmentInfoPersistentDeviceName(c *gc.C) {
s.volumeAttachment.info.DeviceName = "sda"
info, err := storagecommon.StorageAttachmentInfo(s.st, s.storageAttachment, s.machineTag)
c.Assert(err, jc.ErrorIsNil)
s.st.CheckCallNames(c, "StorageInstance", "StorageInstanceVolume", "VolumeAttachment", "BlockDevices")
c.Assert(info, jc.DeepEquals, &storage.StorageAttachmentInfo{
Kind: storage.StorageKindBlock,
Location: filepath.FromSlash("/dev/sda"),
})
}
func storageAttachmentInfo(st storageAccess, a state.StorageAttachment) (_ names.MachineTag, location string, _ error) {
machineTag, err := st.UnitAssignedMachine(a.Unit())
if errors.IsNotAssigned(err) {
return names.MachineTag{}, "", nil
} else if err != nil {
return names.MachineTag{}, "", errors.Trace(err)
}
info, err := storagecommon.StorageAttachmentInfo(st, a, machineTag)
if errors.IsNotProvisioned(err) {
return machineTag, "", nil
} else if err != nil {
return names.MachineTag{}, "", errors.Trace(err)
}
return machineTag, info.Location, nil
}
func (s *storageAttachmentInfoSuite) TestStorageAttachmentInfoMatchingBlockDevice(c *gc.C) {
// The bus address alone is not enough to produce a path to the block
// device; we need to find a published block device with the matching
// bus address.
s.volumeAttachment.info.BusAddress = "scsi@1:2.3.4"
s.blockDevices = []state.BlockDeviceInfo{{
DeviceName: "sda",
}, {
DeviceName: "sdb",
BusAddress: s.volumeAttachment.info.BusAddress,
}}
info, err := storagecommon.StorageAttachmentInfo(s.st, s.storageAttachment, s.machineTag)
c.Assert(err, jc.ErrorIsNil)
s.st.CheckCallNames(c, "StorageInstance", "StorageInstanceVolume", "VolumeAttachment", "BlockDevices")
c.Assert(info, jc.DeepEquals, &storage.StorageAttachmentInfo{
Kind: storage.StorageKindBlock,
Location: filepath.FromSlash("/dev/sdb"),
})
}
func (s *StorageAPI) fromStateStorageAttachment(stateStorageAttachment state.StorageAttachment) (params.StorageAttachment, error) {
machineTag, err := s.st.UnitAssignedMachine(stateStorageAttachment.Unit())
if err != nil {
return params.StorageAttachment{}, err
}
info, err := storagecommon.StorageAttachmentInfo(s.st, stateStorageAttachment, machineTag)
if err != nil {
return params.StorageAttachment{}, err
}
stateStorageInstance, err := s.st.StorageInstance(stateStorageAttachment.StorageInstance())
if err != nil {
return params.StorageAttachment{}, err
}
return params.StorageAttachment{
stateStorageAttachment.StorageInstance().String(),
stateStorageInstance.Owner().String(),
stateStorageAttachment.Unit().String(),
params.StorageKind(stateStorageInstance.Kind()),
info.Location,
params.Life(stateStorageAttachment.Life().String()),
}, nil
}