73 lines
2.5 KiB
Python
73 lines
2.5 KiB
Python
# Copyright 2015 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import yaml
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from probert.network import (StoredDataObserver,
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UdevObserver)
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from probert.storage import Storage
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log = logging.getLogger('subiquitycore.prober')
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class ProberException(Exception):
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'''Base Prober Exception'''
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pass
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class Prober():
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def __init__(self, opts):
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self.opts = opts
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self.probe_data = {}
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self.saved_config = None
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if self.opts.machine_config:
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log.debug('User specified machine_config: {}'.format(
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self.opts.machine_config))
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self.saved_config = (
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self._load_machine_config(self.opts.machine_config))
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self.probe_data = self.saved_config
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log.debug('Prober() init finished, data:{}'.format(self.saved_config))
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def _load_machine_config(self, machine_config):
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with open(machine_config) as mc:
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try:
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data = yaml.safe_load(mc)
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except (UnicodeDecodeError, yaml.reader.ReaderError):
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err = 'Failed to parse machine config'
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log.exception(err)
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raise ProberException(err)
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return data
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def probe_network(self, receiver):
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if self.opts.machine_config:
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observer = StoredDataObserver(
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self.saved_config['network'], receiver)
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else:
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observer = UdevObserver(receiver)
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return observer, observer.start()
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def get_storage(self, probe_types=None):
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''' Load a StorageInfo class. Probe if it's not present '''
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if 'storage' not in self.probe_data:
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log.debug('get_storage: no storage in probe_data, fetching')
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storage = Storage()
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results = storage.probe(probe_types=probe_types)
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self.probe_data['storage'] = results
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return self.probe_data['storage']
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