889a5f8e8c
In some scenarios it is necessary to limit the length of the host name to the maximum length allowed by Netbios. The "netbios_host_name_compatibility" option can be used to control this behaviour.
61 lines
2.2 KiB
Python
61 lines
2.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Cloudbase Solutions Srl
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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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from cloudbaseinit.openstack.common import cfg
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from cloudbaseinit.openstack.common import log as logging
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from cloudbaseinit.osutils import factory as osutils_factory
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from cloudbaseinit.plugins import base
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opts = [
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cfg.BoolOpt('netbios_host_name_compatibility', default=True,
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help='Truncates the hostname to 15 characters for Netbios '
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'compatibility'),
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]
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CONF = cfg.CONF
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CONF.register_opts(opts)
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LOG = logging.getLogger(__name__)
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NETBIOS_HOST_NAME_MAX_LEN = 15
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class SetHostNamePlugin(base.BasePlugin):
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def execute(self, service, shared_data):
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meta_data = service.get_meta_data('openstack')
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if 'hostname' not in meta_data:
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LOG.debug('Hostname not found in metadata')
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return (base.PLUGIN_EXECUTION_DONE, False)
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osutils = osutils_factory.OSUtilsFactory().get_os_utils()
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metadata_host_name = meta_data['hostname'].split('.', 1)[0]
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if (len(metadata_host_name) > NETBIOS_HOST_NAME_MAX_LEN and
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CONF.netbios_host_name_compatibility):
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new_host_name = metadata_host_name[:NETBIOS_HOST_NAME_MAX_LEN]
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LOG.warn('Truncating host name for Netbios compatibility. '
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'Old name: %(metadata_host_name)s, new name: '
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'%(new_host_name)s' %
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{'metadata_host_name': metadata_host_name,
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'new_host_name': new_host_name})
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else:
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new_host_name = metadata_host_name
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reboot_required = osutils.set_host_name(new_host_name)
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return (base.PLUGIN_EXECUTION_DONE, reboot_required)
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