def getVolumeTag(sdUUID, volUUID, tagPrefix):
tags = lvm.getLV(sdUUID, volUUID).tags
if sc.TAG_VOL_UNINIT in tags:
log.warning("Reloading uninitialized volume %s/%s", sdUUID, volUUID)
lvm.invalidateVG(sdUUID)
tags = lvm.getLV(sdUUID, volUUID).tags
if sc.TAG_VOL_UNINIT in tags:
log.error("Found uninitialized volume: %s/%s", sdUUID, volUUID)
raise se.VolumeDoesNotExist("%s/%s" % (sdUUID, volUUID))
for tag in tags:
if tag.startswith(tagPrefix):
return tag[len(tagPrefix):]
else:
log.error("Missing tag %s in volume: %s/%s. tags: %s",
tagPrefix, sdUUID, volUUID, tags)
raise se.MissingTagOnLogicalVolume(volUUID, tagPrefix)
def produceVolume(self, img_id, vol_id):
key = (img_id, vol_id)
if key not in self.volumes:
raise se.VolumeDoesNotExist(vol_id)
return self.volumes[key]