def copy_volume_to_image(self, context, volume, image_service, image_meta):
"""Creates glance image from volume.
Upload of only available volume is supported. The uploaded glance image
has a vmdk disk type of "streamOptimized" that can only be downloaded
using the HttpNfc API.
Steps followed are:
1. Get the name of the vmdk file which the volume points to right now.
Can be a chain of snapshots, so we need to know the last in the
chain.
2. Use Nfc APIs to upload the contents of the vmdk file to glance.
"""
# if volume is attached raise exception
if volume['instance_uuid'] or volume['attached_host']:
msg = _("Upload to glance of attached volume is not supported.")
LOG.error(msg)
raise exception.InvalidVolume(msg)
# validate disk format is vmdk
LOG.debug(_("Copy Volume: %s to new image.") % volume['name'])
VMwareEsxVmdkDriver._validate_disk_format(image_meta['disk_format'])
# get backing vm of volume and its vmdk path
backing = self.volumeops.get_backing(volume['name'])
if not backing:
LOG.info(
_("Backing not found, creating for volume: %s") %
volume['name'])
backing = self._create_backing_in_inventory(volume)
vmdk_file_path = self.volumeops.get_vmdk_path(backing)
# Upload image from vmdk
timeout = self.configuration.vmware_image_transfer_timeout_secs
host_ip = self.configuration.vmware_host_ip
vmware_images.upload_image(context,
timeout,
image_service,
image_meta['id'],
volume['project_id'],
session=self.session,
host=host_ip,
vm=backing,
vmdk_file_path=vmdk_file_path,
vmdk_size=volume['size'] * units.GiB,
image_name=image_meta['name'],
image_version=1)
LOG.info(
_("Done copying volume %(vol)s to a new image %(img)s") % {
'vol': volume['name'],
'img': image_meta['name']
})
def copy_volume_to_image(self, context, volume, image_service, image_meta):
"""Creates glance image from volume.
Upload of only available volume is supported. The uploaded glance image
has a vmdk disk type of "streamOptimized" that can only be downloaded
using the HttpNfc API.
Steps followed are:
1. Get the name of the vmdk file which the volume points to right now.
Can be a chain of snapshots, so we need to know the last in the
chain.
2. Use Nfc APIs to upload the contents of the vmdk file to glance.
"""
# if volume is attached raise exception
if volume['instance_uuid'] or volume['attached_host']:
msg = _("Upload to glance of attached volume is not supported.")
LOG.error(msg)
raise exception.InvalidVolume(msg)
# validate disk format is vmdk
LOG.debug(_("Copy Volume: %s to new image.") % volume['name'])
VMwareEsxVmdkDriver._validate_disk_format(image_meta['disk_format'])
# get backing vm of volume and its vmdk path
backing = self.volumeops.get_backing(volume['name'])
if not backing:
LOG.info(_("Backing not found, creating for volume: %s") %
volume['name'])
backing = self._create_backing_in_inventory(volume)
vmdk_file_path = self.volumeops.get_vmdk_path(backing)
# Upload image from vmdk
timeout = self.configuration.vmware_image_transfer_timeout_secs
host_ip = self.configuration.vmware_host_ip
vmware_images.upload_image(context, timeout, image_service,
image_meta['id'],
volume['project_id'],
session=self.session,
host=host_ip,
vm=backing,
vmdk_file_path=vmdk_file_path,
vmdk_size=volume['size'] * units.GiB,
image_name=image_meta['name'],
image_version=1)
LOG.info(_("Done copying volume %(vol)s to a new image %(img)s") %
{'vol': volume['name'], 'img': image_meta['name']})
def copy_volume_to_image(self, context, volume, image_service, image_meta):
"""Creates glance image from volume.
Steps followed are:
1. Get the name of the vmdk file which the volume points to right now.
Can be a chain of snapshots, so we need to know the last in the
chain.
2. Create the snapshot. A new vmdk is created which the volume points
to now. The earlier vmdk becomes read-only.
3. Call CopyVirtualDisk which coalesces the disk chain to form a
single vmdk, rather a .vmdk metadata file and a -flat.vmdk disk
data file.
4. Now upload the -flat.vmdk file to the image store.
5. Delete the coalesced .vmdk and -flat.vmdk created.
"""
LOG.debug(_("Copy Volume: %s to new image.") % volume['name'])
VMwareEsxVmdkDriver._validate_disk_format(image_meta['disk_format'])
backing = self.volumeops.get_backing(volume['name'])
if not backing:
LOG.info(_("Backing not found, creating for volume: %s") %
volume['name'])
backing = self._create_backing_in_inventory(volume)
vmdk_file_path = self.volumeops.get_vmdk_path(backing)
datastore_name = volumeops.split_datastore_path(vmdk_file_path)[0]
# Create a snapshot
image_id = image_meta['id']
snapshot_name = "snapshot-%s" % image_id
self.volumeops.create_snapshot(backing, snapshot_name, None, True)
# Create a copy of the snapshotted vmdk into a tmp file
tmp_vmdk_file_path = '[%s] %s.vmdk' % (datastore_name, image_id)
host = self.volumeops.get_host(backing)
datacenter = self.volumeops.get_dc(host)
self.volumeops.copy_vmdk_file(datacenter, vmdk_file_path,
tmp_vmdk_file_path)
try:
# Upload image from copy of -flat.vmdk
timeout = self.configuration.vmware_image_transfer_timeout_secs
host_ip = self.configuration.vmware_host_ip
datacenter_name = self.volumeops.get_entity_name(datacenter)
cookies = self.session.vim.client.options.transport.cookiejar
flat_vmdk_copy = '%s-flat.vmdk' % image_id
vmware_images.upload_image(context, timeout, image_service,
image_meta['id'],
volume['project_id'], host=host_ip,
data_center_name=datacenter_name,
datastore_name=datastore_name,
cookies=cookies,
file_path=flat_vmdk_copy,
snapshot_name=image_meta['name'],
image_version=1)
LOG.info(_("Done copying volume %(vol)s to a new image %(img)s") %
{'vol': volume['name'], 'img': image_meta['name']})
finally:
# Delete the coalesced .vmdk and -flat.vmdk created
self.volumeops.delete_vmdk_file(tmp_vmdk_file_path, datacenter)
def copy_volume_to_image(self, context, volume, image_service, image_meta):
"""Creates glance image from volume.
Upload of only available volume is supported.
Steps followed are:
1. Get the name of the vmdk file which the volume points to right now.
Can be a chain of snapshots, so we need to know the last in the
chain.
2. Call CopyVirtualDisk which coalesces the disk chain to form a
single vmdk, rather a .vmdk metadata file and a -flat.vmdk disk
data file.
3. Now upload the -flat.vmdk file to the image store.
4. Delete the coalesced .vmdk and -flat.vmdk created.
"""
if volume['instance_uuid'] or volume['attached_host']:
msg = _("Upload to glance of attached volume is not supported.")
LOG.error(msg)
raise exception.InvalidVolume(msg)
LOG.debug(_("Copy Volume: %s to new image.") % volume['name'])
VMwareEsxVmdkDriver._validate_disk_format(image_meta['disk_format'])
backing = self.volumeops.get_backing(volume['name'])
if not backing:
LOG.info(
_("Backing not found, creating for volume: %s") %
volume['name'])
backing = self._create_backing_in_inventory(volume)
vmdk_file_path = self.volumeops.get_vmdk_path(backing)
datastore_name = volumeops.split_datastore_path(vmdk_file_path)[0]
# Create a copy of the vmdk into a tmp file
image_id = image_meta['id']
tmp_vmdk_file_path = '[%s] %s.vmdk' % (datastore_name, image_id)
host = self.volumeops.get_host(backing)
datacenter = self.volumeops.get_dc(host)
self.volumeops.copy_vmdk_file(datacenter, vmdk_file_path,
tmp_vmdk_file_path)
try:
# Upload image from copy of -flat.vmdk
timeout = self.configuration.vmware_image_transfer_timeout_secs
host_ip = self.configuration.vmware_host_ip
datacenter_name = self.volumeops.get_entity_name(datacenter)
cookies = self.session.vim.client.options.transport.cookiejar
flat_vmdk_copy = '%s-flat.vmdk' % image_id
vmware_images.upload_image(context,
timeout,
image_service,
image_meta['id'],
volume['project_id'],
host=host_ip,
data_center_name=datacenter_name,
datastore_name=datastore_name,
cookies=cookies,
file_path=flat_vmdk_copy,
snapshot_name=image_meta['name'],
image_version=1)
LOG.info(
_("Done copying volume %(vol)s to a new image %(img)s") % {
'vol': volume['name'],
'img': image_meta['name']
})
finally:
# Delete the coalesced .vmdk and -flat.vmdk created
self.volumeops.delete_vmdk_file(tmp_vmdk_file_path, datacenter)
