def admin_prepare_disks(node, disk_size):
"""Purge system disk on node
param: node: Node
param: disk_size: Integer
:rtype : None
"""
disks = node.disk_devices
for disk in disks:
if (disk.device == 'disk' and
disk.volume.name == 'admin-system' and
disk.volume.get_allocation() > 1024 ** 2):
print("Erasing system disk")
disk.volume.erase()
new_volume = Volume.volume_create(
name="admin-system",
capacity=disk_size * 1024 ** 3,
environment=node.environment,
format='qcow2')
new_volume.define()
DiskDevice.node_attach_volume(
node=node,
volume=new_volume,
target_dev=disk.target_dev)
def snapshot_create_volume(self, name):
"""Create volume child for snapshot"""
for disk in self.disk_devices:
if disk.device == "disk":
# Find main disk name, it is used for external disk
back_vol_name = disk.volume.name
back_count = 0
disk_test = disk.volume.backing_store
while disk_test is not None:
back_count += 1
back_vol_name = disk_test.name
disk_test = disk_test.backing_store
if back_count > 500:
raise DevopsError("More then 500 snapshots in chain for {0}.{1}".format(back_vol_name, name))
# Create new volume for snapshot
vol_child = Volume.volume_create_child(
name="{0}.{1}".format(back_vol_name, name), backing_store=disk.volume, environment=self.environment
)
vol_child.define()
# update disk node to new snapshot
disk.volume = vol_child
disk.save()
def admin_prepare_disks(node, disk_size):
"""Purge system disk on node
param: node: Node
param: disk_size: Integer
:rtype : None
"""
disks = node.disk_devices
for disk in disks:
if (disk.device == 'disk' and
disk.volume.name == 'admin-system' and
disk.volume.get_allocation() > 1024 ** 2):
print("Erasing system disk")
disk.volume.erase()
new_volume = Volume.volume_create(
name="admin-system",
capacity=disk_size * 1024 ** 3,
environment=node.environment,
format='qcow2')
new_volume.define()
DiskDevice.node_attach_volume(
node=node,
volume=new_volume,
target_dev=disk.target_dev)
def describe_admin_node(self, name, networks, boot_from='cdrom',
vcpu=None, memory=None,
iso_path=None):
if boot_from == 'cdrom':
boot_device = ['hd', 'cdrom']
device = 'cdrom'
bus = 'ide'
elif boot_from == 'usb':
boot_device = ['hd']
device = 'disk'
bus = 'usb'
node = self.add_node(
memory=memory or settings.HARDWARE["admin_node_memory"],
vcpu=vcpu or settings.HARDWARE["admin_node_cpu"],
name=name,
role='admin',
boot=boot_device)
self.create_interfaces(networks, node)
if self.os_image is None:
iso = iso_path or settings.ISO_PATH
self.add_empty_volume(node, name + '-system',
capacity=settings.ADMIN_NODE_VOLUME_SIZE
* 1024 ** 3)
self.add_empty_volume(
node,
name + '-iso',
capacity=_get_file_size(iso),
format='raw',
device=device,
bus=bus)
else:
volume = Volume.volume_get_predefined(self.os_image)
vol_child = Volume.volume_create_child(
name=name + '-system',
backing_store=volume,
environment=self
)
DiskDevice.node_attach_volume(
node=node,
volume=vol_child
)
return node
def add_empty_volume(self, node, name, capacity,
device='disk', bus='virtio', format='qcow2'):
return DiskDevice.node_attach_volume(
node=node,
volume=Volume.volume_create(
name=name,
capacity=capacity,
environment=self,
format=format),
device=device,
bus=bus)
def describe_admin_node(self,
name,
networks,
boot_from='cdrom',
vcpu=None,
memory=None,
iso_path=None):
if boot_from == 'cdrom':
boot_device = ['hd', 'cdrom']
device = 'cdrom'
bus = 'ide'
elif boot_from == 'usb':
boot_device = ['hd']
device = 'disk'
bus = 'usb'
node = self.add_node(
memory=memory or settings.HARDWARE.get("admin_node_memory", 1024),
vcpu=vcpu or settings.HARDWARE.get("admin_node_cpu", 1),
name=name,
boot=boot_device)
self.create_interfaces(networks, node)
if self.os_image is None:
iso = iso_path or settings.ISO_PATH
self.add_empty_volume(node, name + '-system')
self.add_empty_volume(node,
name + '-iso',
capacity=_get_file_size(iso),
format='raw',
device=device,
bus=bus)
else:
volume = Volume.volume_get_predefined(self.os_image)
vol_child = Volume.volume_create_child(name=name + '-system',
backing_store=volume,
environment=self)
DiskDevice.node_attach_volume(node=node, volume=vol_child)
return node
