def load_volumes(self, vols):
"""
Iterate through vols and set device/partition settings automatically if
not specified.
This method assigns the first volume to /dev/sdz, second to /dev/sdy,
etc for all volumes that do not include a device/partition setting
"""
devices = ["/dev/sd%s" % s for s in string.lowercase]
for volname in vols:
vol = vols.get(volname)
dev = vol.get("device")
if dev in devices:
# rm user-defined devices from the list of auto-assigned devices
devices.remove(dev)
volumes = {}
for volname in vols:
vol = vols.get(volname)
device = vol.get("device")
if not device:
device = devices.pop()
if not utils.is_valid_device(device):
raise exception.InvalidDevice(device)
v = volumes[volname] = utils.AttributeDict()
v.update(vol)
v["device"] = device
part = vol.get("partition", 1)
partition = device + str(part)
if not utils.is_valid_partition(partition):
raise exception.InvalidPartition(part)
v["partition"] = partition
return volumes
def _validate_ebs_settings(self):
"""
Check EBS vols for missing/duplicate DEVICE/PARTITION/MOUNT_PATHs
and validate these settings. Does not require AWS credentials.
"""
vol_ids = []
devices = []
mount_paths = []
for vol in self.volumes:
vol_name = vol
vol = self.volumes.get(vol)
vol_id = vol.get("volume_id")
device = vol.get("device")
partition = vol.get("partition")
mount_path = vol.get("mount_path")
mount_paths.append(mount_path)
devices.append(device)
vol_ids.append(vol_id)
if not device:
raise exception.ClusterValidationError("Missing DEVICE setting for volume %s" % vol_name)
if not utils.is_valid_device(device):
raise exception.ClusterValidationError("Invalid DEVICE value for volume %s" % vol_name)
if not partition:
raise exception.ClusterValidationError("Missing PARTITION setting for volume %s" % vol_name)
if not utils.is_valid_partition(partition):
raise exception.ClusterValidationError("Invalid PARTITION value for volume %s" % vol_name)
if not partition.startswith(device):
raise exception.ClusterValidationError("Volume PARTITION must start with %s" % device)
if not mount_path:
raise exception.ClusterValidationError("Missing MOUNT_PATH setting for volume %s" % vol_name)
if not mount_path.startswith("/"):
raise exception.ClusterValidationError("MOUNT_PATH for volume %s should start with /" % vol_name)
for vol_id in vol_ids:
if vol_ids.count(vol_id) > 1:
raise exception.ClusterValidationError(
("Multiple configurations for volume %s specified. " + "Please choose one") % vol_id
)
for dev in devices:
if devices.count(dev) > 1:
raise exception.ClusterValidationError("Can't attach more than one volume on device %s" % dev)
for path in mount_paths:
if mount_paths.count(path) > 1:
raise exception.ClusterValidationError("Can't mount more than one volume on %s" % path)
return True
def _validate_device(self, device):
if not utils.is_valid_device(device):
raise exception.ValidationError("volume device %s is not valid" % \
device)
def _validate_device(self, device):
if not utils.is_valid_device(device):
raise exception.ValidationError("volume device %s is not valid" % \
device)
