67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
# Copyright 2015 Canonical, Ltd.
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Affero General Public License as
|
|
# published by the Free Software Foundation, either version 3 of the
|
|
# License, or (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Affero General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
import logging
|
|
import yaml
|
|
import os
|
|
from probert.storage import (Storage,
|
|
StorageInfo)
|
|
|
|
log = logging.getLogger('subiquitycore.prober')
|
|
|
|
|
|
class ProberException(Exception):
|
|
'''Base Prober Exception'''
|
|
pass
|
|
|
|
|
|
class Prober():
|
|
def __init__(self, opts):
|
|
self.opts = opts
|
|
self.probe_data = {}
|
|
|
|
if self.opts.machine_config:
|
|
log.debug('User specified machine_config: {}'.format(
|
|
self.opts.machine_config))
|
|
if os.path.exists(self.opts.machine_config):
|
|
self.probe_data = \
|
|
self._load_machine_config(self.opts.machine_config)
|
|
log.debug('Prober() init finished, data:{}'.format(self.probe_data))
|
|
|
|
def _load_machine_config(self, machine_config):
|
|
with open(machine_config) as mc:
|
|
try:
|
|
data = yaml.safe_load(mc)
|
|
except (UnicodeDecodeError, yaml.reader.ReaderError):
|
|
err = 'Failed to parse machine config'
|
|
log.exception(err)
|
|
raise ProberException(err)
|
|
|
|
return data
|
|
|
|
def get_storage(self):
|
|
''' Load a StorageInfo class. Probe if it's not present '''
|
|
if 'storage' not in self.probe_data:
|
|
log.debug('get_storage: no storage in probe_data, fetching')
|
|
storage = Storage()
|
|
results = storage.probe()
|
|
self.probe_data['storage'] = results
|
|
|
|
return self.probe_data['storage']
|
|
|
|
def get_storage_info(self, device):
|
|
''' Load a StorageInfo class for specified device '''
|
|
return StorageInfo({device: self.get_storage().get(device)})
|