70 lines
2.7 KiB
Python
70 lines
2.7 KiB
Python
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import importlib
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import importlib.machinery
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from netbox_agent.config import DATACENTER_LOCATION, DATACENTER_LOCATION_DRIVER_FILE, \
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DATACENTER_LOCATION_REGEX, RACK_LOCATION, RACK_LOCATION_DRIVER_FILE, RACK_LOCATION_REGEX
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class LocationBase():
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"""
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This class is used to guess the location in order to push the information
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in Netbox for a `Device`
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A driver takes a `value` and evaluates a regex with a `capture group`.
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There's embeded drivers such as `file` or `cmd` which read a file or return the
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output of a file.
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There's also a support for an external driver file outside of this project in case
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the logic isn't supported here.
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"""
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def __init__(self, driver, driver_value, driver_file, regex, *args, **kwargs):
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self.driver = driver
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self.driver_value = driver_value
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self.driver_file = driver_file
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self.regex = regex
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if self.driver_file:
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try:
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# FIXME: Works with Python 3.3+, support older version?
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loader = importlib.machinery.SourceFileLoader('driver_file', self.driver_file)
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self.driver = loader.load_module()
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except ImportError:
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raise ImportError("Couldn't import {} as a module".format(self.driver_file))
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else:
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if self.driver:
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try:
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self.driver = importlib.import_module(
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'netbox_agent.drivers.{}'.format(self.driver)
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)
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except ImportError:
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raise ImportError("Driver {} doesn't exists".format(self.driver))
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def get(self):
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if self.driver is None:
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return None
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if not hasattr(self.driver, 'get'):
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raise Exception(
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"Your driver {} doesn't have a get() function, please fix it".format(self.driver)
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)
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return getattr(self.driver, 'get')(self.driver_value, self.regex)
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class Datacenter(LocationBase):
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def __init__(self):
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driver = DATACENTER_LOCATION.split(':')[0] if DATACENTER_LOCATION else None
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driver_value = ':'.join(DATACENTER_LOCATION.split(':')[1:]) if DATACENTER_LOCATION \
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else None
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driver_file = DATACENTER_LOCATION_DRIVER_FILE
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regex = DATACENTER_LOCATION_REGEX
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super().__init__(driver, driver_value, driver_file, regex)
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class Rack(LocationBase):
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def __init__(self):
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driver = RACK_LOCATION.split(':')[0] if RACK_LOCATION else None
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driver_value = ':'.join(RACK_LOCATION.split(':')[1:]) if RACK_LOCATION else None
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driver_file = RACK_LOCATION_DRIVER_FILE
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regex = RACK_LOCATION_REGEX
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super().__init__(driver, driver_value, driver_file, regex)
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