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New option for napalm proxy/minion: provider

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This option will turn very handy for environemnts when the user
requires a library with a different name than napalm-base (eventually
on top of the public lib). The sole requirement right now is to
preserve the get_network_driver function. However, this can be enhnaced
even from this perspective later, if really needed.
This commit is contained in:
Mircea Ulinic 2017-07-10 20:29:35 +00:00
parent 81695a9f3c
commit 4bf4b14161
1 changed files with 20 additions and 1 deletions
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21
salt/utils/napalm.py
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@ -19,6 +19,7 @@ from __future__ import absolute_import
import traceback
import logging
import importlib
from functools import wraps
log = logging.getLogger(__file__)
@ -264,6 +265,7 @@ def get_device_opts(opts, salt_obj=None):
network_device['TIMEOUT'] = device_dict.get('timeout', 60)
network_device['OPTIONAL_ARGS'] = device_dict.get('optional_args', {})
network_device['ALWAYS_ALIVE'] = device_dict.get('always_alive', True)
network_device['PROVIDER'] = device_dict.get('provider')
network_device['UP'] = False
# get driver object form NAPALM
if 'config_lock' not in network_device['OPTIONAL_ARGS']:
@ -281,7 +283,24 @@ def get_device(opts, salt_obj=None):
'''
log.debug('Setting up NAPALM connection')
network_device = get_device_opts(opts, salt_obj=salt_obj)
_driver_ = napalm_base.get_network_driver(network_device.get('DRIVER_NAME'))
provider_lib = napalm_base
if network_device.get('PROVIDER'):
# In case the user requires a different provider library,
# other than napalm-base.
# For example, if napalm-base does not satisfy the requirements
# and needs to be enahanced with more specific features,
# we may need to define a custom library on top of napalm-base
# with the constraint that it still needs to provide the
# `get_network_driver` function. However, even this can be
# extended later, if really needed.
# Configuration example:
# provider: napalm_base_example
try:
provider_lib = importlib.import_module(network_device.get('PROVIDER'))
except ImportError as ierr:
log.error('Unable to import {0}'.format(network_device.get('PROVIDER')), exc_info=True)
log.error('Falling back to napalm-base')
_driver_ = provider_lib.get_network_driver(network_device.get('DRIVER_NAME'))
try:
network_device['DRIVER'] = _driver_(
network_device.get('HOSTNAME', ''),