nova/nova/tests/unit/virt/libvirt/fake_libvirt_utils.py

184 lines
3.7 KiB
Python

# Copyright (c) 2011 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import io
import os
from nova.virt.libvirt import utils as libvirt_utils
files = {'console.log': b''}
disk_sizes = {}
disk_backing_files = {}
disk_type = "qcow2"
RESIZE_SNAPSHOT_NAME = libvirt_utils.RESIZE_SNAPSHOT_NAME
def create_image(disk_format, path, size):
pass
def create_cow_image(backing_file, path):
pass
def create_ploop_image(disk_format, path, size, fs_type):
pass
def get_disk_size(path, format=None):
return 0
def get_disk_backing_file(path, basename=True, format=None):
backing_file = disk_backing_files.get(path, None)
if backing_file and basename:
backing_file = os.path.basename(backing_file)
return backing_file
def get_disk_type_from_path(path):
if disk_type in ('raw', 'qcow2'):
return None
return disk_type
def copy_image(src, dest, host=None, receive=False,
on_execute=None, on_completion=None,
compression=True):
pass
def resize2fs(path):
pass
def create_lvm_image(vg, lv, size, sparse=False):
pass
def volume_group_free_space(vg):
pass
def remove_logical_volumes(*paths):
pass
def write_to_file(path, contents, umask=None):
pass
def chown(path, owner):
pass
def update_mtime(path):
pass
def extract_snapshot(disk_path, source_fmt, out_path, dest_fmt):
files[out_path] = b''
class File(object):
def __init__(self, path, mode=None):
if path in files:
self.fp = io.BytesIO(files[path])
else:
self.fp = io.BytesIO(files[os.path.split(path)[-1]])
def __enter__(self):
return self.fp
def __exit__(self, *args):
return
def close(self, *args, **kwargs):
self.fp.close()
def file_open(path, mode=None):
return File(path, mode)
def find_disk(virt_dom):
if disk_type == 'lvm':
return ("/dev/nova-vg/lv", "raw")
elif disk_type in ['raw', 'qcow2']:
return ("filename", disk_type)
else:
return ("unknown_type_disk", None)
def load_file(path):
if os.path.exists(path):
with open(path, 'r') as fp:
return fp.read()
else:
return ''
def logical_volume_info(path):
return {}
def file_delete(path):
return True
def get_fs_info(path):
return {'total': 128 * (1024 ** 3),
'used': 44 * (1024 ** 3),
'free': 84 * (1024 ** 3)}
def fetch_image(context, target, image_id, max_size=0):
pass
def fetch_raw_image(context, target, image_id, max_size=0):
pass
def get_instance_path(instance, relative=False):
return libvirt_utils.get_instance_path(instance, relative=relative)
def get_instance_path_at_destination(instance, migrate_data=None):
return libvirt_utils.get_instance_path_at_destination(instance,
migrate_data)
def pick_disk_driver_name(hypervisor_version, is_block_dev=False):
return "qemu"
def is_valid_hostname(name):
return True
def chown_for_id_maps(path, id_maps):
pass
def get_arch(image_meta):
return libvirt_utils.get_arch(image_meta)
def last_bytes(file_like_object, num):
return libvirt_utils.last_bytes(file_like_object, num)