Commit 22c79cdb authored by Christos Stavrakakis's avatar Christos Stavrakakis
Browse files

cyclades: Create DB models for 'volume' app

Create new database models for 'volume' app:
* Volume
* Snapshot
* VolumeMetadata
* SnapshotMetadata

Also add 'VolumeFactory' and 'SnapshotFactory' model factories.
parent cdd69983
......@@ -983,3 +983,80 @@ class VirtualMachineDiagnostic(models.Model):
class Meta:
ordering = ['-created']
class Volume(models.Model):
"""Model representing a detachable block storage device."""
("CREATING", "The volume is being created"),
("AVAILABLE", "The volume is ready to be attached to an instance"),
("ATTACHING", "The volume is attaching to an instance"),
("DETACHING", "The volume is detaching from an instance"),
("IN_USE", "The volume is attached to an instance"),
("DELETING", "The volume is being deleted"),
("ERROR", "An error has occured with the volume"),
("ERROR_DELETING", "There was an error deleting this volume"),
("BACKING_UP", "The volume is being backed up"),
("RESTORING_BACKUP", "A backup is being restored to the volume"),
("ERROR_RESTORING", "There was an error restoring a backup from the"
" volume")
name = models.CharField("Name", max_length=255, null=True)
description = models.CharField("Description", max_length=256, null=True)
userid = models.CharField("Owner's UUID", max_length=100, null=False,
size = models.IntegerField("Volume size in GB", null=False)
source_image_id = models.CharField(max_length=100, null=True)
source_snapshot_id = models.CharField(max_length=100, null=True)
source_volume = models.ForeignKey("Volume",
delete_on_termination = models.BooleanField("Delete on Server Termination",
default=True, null=False)
# TODO: volume_type should be foreign key to VolumeType model
volume_type = None
deleted = models.BooleanField("Deleted", default=False, null=False)
# Datetime fields
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
# Status
status = models.CharField("Status", max_length=64,
default="CREATING", null=False)
snapshot_counter = models.PositiveIntegerField(default=0, null=False)
machine = models.ForeignKey("VirtualMachine",
index = models.IntegerField("Index", null=True)
backendjobid = models.PositiveIntegerField(null=True)
def backend_volume_uuid(self):
return u"%svolume-%d" % (settings.BACKEND_PREFIX_ID,
def backend_disk_uuid(self):
return u"%sdisk-%d" % (settings.BACKEND_PREFIX_ID,
class Metadata(models.Model):
key = models.CharField("Metadata Key", max_length=64)
value = models.CharField("Metadata Value", max_length=255)
class Meta:
abstract = True
def __unicode__(self):
return u"<%s: %s>" % (self.key, self.value)
class VolumeMetadata(Metadata):
volume = models.ForeignKey("Volume", related_name="metadata")
class Meta:
unique_together = (("volume", "key"),)
verbose_name = u"Key-Value pair of Volumes metadata"
......@@ -287,3 +287,10 @@ class IPAddressLogFactory(factory.DjangoModelFactory):
server_id = 1
network_id = 1
active = True
class VolumeFactory(factory.DjangoModelFactory):
FACTORY_FOR = models.Volume
userid = factory.Sequence(user_seq())
size = factory.Sequence(lambda x: x, type=int)
name = factory.Sequence(lambda x: "volume-name-"+x, type=str)
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