1afb9f0cbf
This commit updates node controller code to use generic manager interface instead of redfish directly Partially-Implements blueprint add-vendor-extensible-framework Change-Id: Ic551167798306a1ed6b5c609117e6d19e6de6574
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
import logging
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import stevedore
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from valence.common import exception
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from valence.common import utils
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from valence.db import api as db_api
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LOG = logging.getLogger(__name__)
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# cache podmanager connections, one connection per podmanager
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podm_connections = {}
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# cache podmanager modules, to be loaded only once per driver
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# If same driver used by 2 podmanagers (eg:redfishv1), podm_base module will be
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# loaded only once, but 2 instances of class would be created.
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podm_modules = {}
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def get_connection(podm_id):
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podm_connection = podm_connections.get(podm_id, None)
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if podm_connection:
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return podm_connection
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podm_db = db_api.Connection.get_podmanager_by_uuid(podm_id).as_dict()
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username, password = utils.get_basic_auth_credentials(
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podm_db['authentication'])
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podm_connection = Manager(podm_db['url'], username, password,
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podm_db['driver']).podm
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podm_connections[podm_id] = podm_connection
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return podm_connection
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class Manager(object):
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def __init__(self, url, username, password, driver='redfishv1'):
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self.podm = self._get_podm_instance(driver, url, username, password)
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def _get_podm_instance(self, driver, url, username, password):
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podm = self.load_podm(driver)
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return podm(username, password, url)
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@classmethod
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def load_podm(cls, driver):
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# get module if already loaded
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podm = podm_modules.get(driver, None)
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if not podm:
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try:
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podm = stevedore.driver.DriverManager(
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'valence.podmanager.driver',
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driver, invoke_on_load=False).driver
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except RuntimeError:
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msg = "podmanager could not be loaded with specified driver %s"
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LOG.exception(msg % driver)
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raise exception.DriverNotFound(msg % driver)
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podm_modules[driver] = podm
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return podm
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