NAPALM: eos with "transport=ssh" set not working

[antkachenko]

Hello, colleagues

Trying to turn on NAPALM for eos driver but get the following error. How to solve this?
For "ios" and "nxos_ssh" everything works fine.

[candlerb]

If you set ADMINS and EMAIL in configuration.py, then restart Netbox, do you get a full exception backtrace E-mailed to you? That will show if the error is in Napalm or Netbox, and where exactly it is.

[antkachenko]

Here is the e-mail content I've got after error occurred:

Internal Server Error: /api/dcim/devices/118/napalm/

AttributeError at /api/dcim/devices/118/napalm/ 'AristaSSH' object has no attribute 'connection'

Request Method: GET
Request URL: https://netbox.borishof.ru/api/dcim/devices/118/napalm/?method=get_facts&method=get_environment
Django Version: 4.1.7
Python Executable: /opt/netbox/venv/bin/python3 Python Version: 3.10.6 Python Path: ['/opt/netbox/netbox', '/opt/netbox', '/opt/netbox/venv/bin', '/usr/lib/python310.zip', '/usr/lib/python3.10', '/usr/lib/python3.10/lib-dynload', '/opt/netbox/venv/lib/python3.10/site-packages']
Server time: Sat, 04 Mar 2023 00:45:07 +0300 Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.humanize',
'corsheaders',
'debug_toolbar',
'graphiql_debug_toolbar',
'django_filters',
'django_tables2',
'django_prometheus',
'graphene_django',
'mptt',
'rest_framework',
'social_django',
'taggit',
'timezone_field',
'circuits',
'dcim',
'ipam',
'extras',
'tenancy',
'users',
'utilities',
'virtualization',
'wireless',
'django_rq',
'drf_yasg',
'netdoc.NetdocConfig',
'netbox_topology_views.TopologyViewsConfig']
Installed Middleware:
['graphiql_debug_toolbar.middleware.DebugToolbarMiddleware',
'django_prometheus.middleware.PrometheusBeforeMiddleware',
'corsheaders.middleware.CorsMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.security.SecurityMiddleware',
'netbox.middleware.ExceptionHandlingMiddleware',
'netbox.middleware.RemoteUserMiddleware',
'netbox.middleware.LoginRequiredMiddleware',
'netbox.middleware.DynamicConfigMiddleware',
'netbox.middleware.APIVersionMiddleware',
'netbox.middleware.ObjectChangeMiddleware',
'django_prometheus.middleware.PrometheusAfterMiddleware']

Traceback (most recent call last):
File "/opt/netbox/venv/lib/python3.10/site-packages/django/core/handlers/exception.py", line 56, in inner
response = get_response(request)
File "/opt/netbox/venv/lib/python3.10/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/netbox/venv/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 55, in wrapped_view
return view_func(*args, **kwargs)
File "/opt/netbox/venv/lib/python3.10/site-packages/rest_framework/viewsets.py", line 125, in view
return self.dispatch(request, *args, **kwargs)
File "/opt/netbox/netbox/netbox/api/viewsets/init.py", line 118, in dispatch
return super().dispatch(request, *args, **kwargs)
File "/opt/netbox/venv/lib/python3.10/site-packages/rest_framework/views.py", line 509, in dispatch
response = self.handle_exception(exc)
File "/opt/netbox/venv/lib/python3.10/site-packages/rest_framework/views.py", line 469, in handle_exception
self.raise_uncaught_exception(exc)
File "/opt/netbox/venv/lib/python3.10/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
raise exc
File "/opt/netbox/venv/lib/python3.10/site-packages/rest_framework/views.py", line 506, in dispatch
response = handler(request, *args, **kwargs)
File "/opt/netbox/netbox/dcim/api/views.py", line 536, in napalm
d.close()
File "/opt/netbox/venv/lib/python3.10/site-packages/napalm/eos/eos.py", line 234, in close
if hasattr(self.device.connection, "close") and callable(

Exception Type: AttributeError at /api/dcim/devices/118/napalm/ Exception Value: 'AristaSSH' object has no attribute 'connection'
Raised during: dcim.api.views.DeviceViewSet Request information:
USER: anton.tkachenko

GET:
method = 'get_environment'

POST: No POST data

FILES: No FILES data

[candlerb]

Netbox source: it creates a driver instance (d), then calls d.open(), then calls d.close() which is where the exception occurs in napalm code here. It looks like self.device has no connection attribute, as the error says.

What version of napalm was installed in your virtualenv? IIRC, there were incompatible changes between v3.4.1 and v4.0.0. It might work to pin it to an earlier version.

Otherwise: you'll need to do some debugging of napalm - sorry. See if you can reproduce this standalone at the CLI, without involving Netbox - then you can raise it as a bug report upstream.

[antkachenko]

Netbox version is 3.4.5, napalm - 4.0.0.

Do you mean this installation should not work with Arista (EOS)?

Here is the direct call to "napalm". Could you please help me to understand, where should I address bug report - netbox or apalm?

(venv) root@i900svnb01:/home/anton# napalm --user USER --password PASSWORD --vendor eos --optional_args "transport=ssh" 10.77.16.5 call get_interfaces
Traceback (most recent call last):
File "/opt/netbox/venv/bin/napalm", line 8, in
sys.exit(main())
File "/opt/netbox/venv/lib/python3.10/site-packages/napalm/base/clitools/cl_napalm.py", line 308, in main
run_tests(args)
File "/opt/netbox/venv/lib/python3.10/site-packages/napalm/base/clitools/cl_napalm.py", line 269, in run_tests
optional_args = helpers.parse_optional_args(args.optional_args)
File "/opt/netbox/venv/lib/python3.10/site-packages/napalm/base/clitools/helpers.py", line 131, in parse_optional_args
return {
File "/opt/netbox/venv/lib/python3.10/site-packages/napalm/base/clitools/helpers.py", line 132, in
x.split("=")[0]: ast.literal_eval(x.split("=")[1])
File "/usr/lib/python3.10/ast.py", line 108, in literal_eval
return _convert(node_or_string)
File "/usr/lib/python3.10/ast.py", line 107, in _convert
return _convert_signed_num(node)
File "/usr/lib/python3.10/ast.py", line 81, in _convert_signed_num
return _convert_num(node)
File "/usr/lib/python3.10/ast.py", line 72, in _convert_num
_raise_malformed_node(node)
File "/usr/lib/python3.10/ast.py", line 69, in _raise_malformed_node
raise ValueError(msg + f': {node!r}')
ValueError: malformed node or string on line 1: <ast.Name object at 0x7fcd1aa13b50>

[antkachenko]

In addition, could you please confirm my understanding: I've set "transport" setting here -