84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2012 NTT DOCOMO, INC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import errno
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import os
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import shutil
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from nova.openstack.common import log as logging
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from nova.virt.disk import api as disk_api
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from nova.virt.libvirt import utils as libvirt_utils
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LOG = logging.getLogger(__name__)
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def cache_image(context, target, image_id, user_id, project_id):
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if not os.path.exists(target):
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libvirt_utils.fetch_image(context, target, image_id,
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user_id, project_id)
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def inject_into_image(image, key, net, metadata, admin_password,
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files, partition, use_cow=False):
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try:
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disk_api.inject_data(image, key, net, metadata, admin_password,
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files, partition, use_cow)
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except Exception as e:
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LOG.warn(_("Failed to inject data into image %(image)s. "
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"Error: %(e)s") % locals())
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def unlink_without_raise(path):
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try:
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os.unlink(path)
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except OSError, e:
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if e.errno == errno.ENOENT:
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return
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else:
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LOG.warn(_("Failed to unlink %(path)s, error: %(e)s") % locals())
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def rmtree_without_raise(path):
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try:
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if os.path.isdir(path):
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shutil.rmtree(path)
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except OSError, e:
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LOG.warn(_("Failed to remove dir %(path)s, error: %(e)s") % locals())
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def write_to_file(path, contents):
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with open(path, 'w') as f:
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f.write(contents)
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def create_link_without_raise(source, link):
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try:
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os.symlink(source, link)
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except OSError, e:
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if e.errno == errno.EEXIST:
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return
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else:
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LOG.warn(_("Failed to create symlink from %(source)s to %(link)s"
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", error: %(e)s") % locals())
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def random_alnum(count):
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import random
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import string
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chars = string.ascii_uppercase + string.digits
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return "".join(random.choice(chars) for _ in range(count))
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