70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
# 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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import platform
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import re
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from oslo.config 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.common 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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osutils = osutils_factory.get_os_utils()
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metadata_host_name = service.get_host_name()
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if not metadata_host_name:
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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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metadata_host_name = metadata_host_name.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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new_host_name = re.sub(r'-$', '0', new_host_name)
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if platform.node().lower() == new_host_name.lower():
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LOG.debug("Hostname already set to: %s" % new_host_name)
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reboot_required = False
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else:
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LOG.info("Setting hostname: %s" % new_host_name)
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osutils.set_host_name(new_host_name)
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reboot_required = True
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return (base.PLUGIN_EXECUTION_DONE, reboot_required)
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