diff options
Diffstat (limited to 'nova/virt')
| -rw-r--r-- | nova/virt/xenapi/vm_utils.py | 104 |
1 files changed, 9 insertions, 95 deletions
diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index 9e5527916..8b6868c31 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -423,13 +423,8 @@ class VMHelper(HelperBase): """ access = AuthManager().get_access_key(user, project) - if FLAGS.image_service == 'nova.image.glance.GlanceImageService': - return cls._fetch_image_glance(session, instance_id, image, - access, image_type) - else: - return cls._fetch_image_objectstore(session, instance_id, image, - access, user.secret, - image_type) + return cls._fetch_image_glance(session, instance_id, image, + access, image_type) @classmethod def _fetch_image_glance_vhd(cls, session, instance_id, image, access, @@ -603,10 +598,7 @@ class VMHelper(HelperBase): else: return ImageType.DISK_RAW - if FLAGS.image_service == 'nova.image.glance.GlanceImageService': - image_type = determine_from_glance() - else: - image_type = determine_from_instance() + image_type = determine_from_glance() log_disk_format(image_type) return image_type @@ -627,110 +619,32 @@ class VMHelper(HelperBase): session, instance_id, image, access, image_type) @classmethod - def _fetch_image_objectstore(cls, session, instance_id, image, access, - secret, image_type): - """Fetch an image from objectstore. - - Returns: A single filename if image_type is KERNEL or RAMDISK - A list of dictionaries that describe VDIs, otherwise - """ - url = "http://%s:%s/_images/%s/image" % (FLAGS.s3_host, FLAGS.s3_port, - image) - LOG.debug(_("Asking xapi to fetch %(url)s as %(access)s") % locals()) - if image_type in (ImageType.KERNEL, ImageType.RAMDISK): - fn = 'get_kernel' - else: - fn = 'get_vdi' - args = {} - args['src_url'] = url - args['username'] = access - args['password'] = secret - args['add_partition'] = 'false' - args['raw'] = 'false' - if not image_type in (ImageType.KERNEL, ImageType.RAMDISK): - args['add_partition'] = 'true' - if image_type == ImageType.DISK_RAW: - args['raw'] = 'true' - task = session.async_call_plugin('objectstore', fn, args) - vdi_uuid = None - filename = None - if image_type in (ImageType.KERNEL, ImageType.RAMDISK): - filename = session.wait_for_task(task, instance_id) - else: - vdi_uuid = session.wait_for_task(task, instance_id) - return [dict(vdi_type=ImageType.to_string(image_type), - vdi_uuid=vdi_uuid, - file=filename)] - - @classmethod def determine_is_pv(cls, session, instance_id, vdi_ref, disk_image_type, os_type): """ Determine whether the VM will use a paravirtualized kernel or if it will use hardware virtualization. - 1. Objectstore (any image type): - We use plugin to figure out whether the VDI uses PV - - 2. Glance (VHD): then we use `os_type`, raise if not set - - 3. Glance (DISK_RAW): use Pygrub to figure out if pv kernel is - available - - 4. Glance (DISK): pv is assumed - """ - if FLAGS.image_service == 'nova.image.glance.GlanceImageService': - # 2, 3, 4: Glance - return cls._determine_is_pv_glance( - session, vdi_ref, disk_image_type, os_type) - else: - # 1. Objecstore - return cls._determine_is_pv_objectstore(session, instance_id, - vdi_ref) - - @classmethod - def _determine_is_pv_objectstore(cls, session, instance_id, vdi_ref): - LOG.debug(_("Looking up vdi %s for PV kernel"), vdi_ref) - fn = "is_vdi_pv" - args = {} - args['vdi-ref'] = vdi_ref - task = session.async_call_plugin('objectstore', fn, args) - pv_str = session.wait_for_task(task, instance_id) - pv = None - if pv_str.lower() == 'true': - pv = True - elif pv_str.lower() == 'false': - pv = False - LOG.debug(_("PV Kernel in VDI:%s"), pv) - return pv - - @classmethod - def _determine_is_pv_glance(cls, session, vdi_ref, disk_image_type, - os_type): - """ - For a Glance image, determine if we need paravirtualization. - - The relevant scenarios are: - 2. Glance (VHD): then we use `os_type`, raise if not set + 1. Glance (VHD): then we use `os_type`, raise if not set - 3. Glance (DISK_RAW): use Pygrub to figure out if pv kernel is + 2. Glance (DISK_RAW): use Pygrub to figure out if pv kernel is available - 4. Glance (DISK): pv is assumed + 3. Glance (DISK): pv is assumed """ LOG.debug(_("Looking up vdi %s for PV kernel"), vdi_ref) if disk_image_type == ImageType.DISK_VHD: - # 2. VHD + # 1. VHD if os_type == 'windows': is_pv = False else: is_pv = True elif disk_image_type == ImageType.DISK_RAW: - # 3. RAW + # 2. RAW is_pv = with_vdi_attached_here(session, vdi_ref, True, _is_vdi_pv) elif disk_image_type == ImageType.DISK: - # 4. Disk + # 3. Disk is_pv = True else: raise exception.Error(_("Unknown image format %(disk_image_type)s") |