Guestshell errors in python3 interpreter

[Jerems]

Hi dear community,

Can someone please assist me in fixing the following error messages in the python3 interpreter in Guestshell ?

Router#guestshell run sudo python3
Python 3.6.8 (default, Aug 24 2020, 18:22:40)
[GCC 8.3.1 20191121 (Red Hat 8.3.1-5)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cli

>>> cli.clip("show ip int brief")
Unexpected Error

>>> cli.executep("show ip int brief")
Unexpected Error

>>> output = cli.execute("show ip int brief")
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/cli/__init__.py", line 284, in cli
    stderr=subprocess.STDOUT, shell=True)
  File "/usr/lib64/python3.6/subprocess.py", line 356, in check_output
    **kwargs).stdout
  File "/usr/lib64/python3.6/subprocess.py", line 438, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command 'iosp_client -om 3 -o /tmp/.iosp_2023_05_09_13_58_56_008499_971558159.output -i /tmp/.iosp_2023_05_09_13_58_56_008499_971558159.cmd' returned non-zero exit status 4.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.6/site-packages/cli/__init__.py", line 336, in execute
    return (cli(command))
  File "/usr/lib/python3.6/site-packages/cli/__init__.py", line 298, in cli
    raise IOSPUnexpectedError
cli.IOSPUnexpectedError: Unexpected Error

Thanks in advance,

Regards,

Jerems

[bigevilbeard · Accepted solution]

You need to import clip for that to work

from cli import clip

 From cli you can do

>>> import cli
>>> cli.cli('show version')

[Jerems]

Hi Stuart,

Thank you so much for your quick reply.

"import cli" is not enough?

Thanks in advance

[bigevilbeard]

I was wondering this after i posted tried... as i was wondering why

>>> dir(cli)
['BKUP_LOGFILE', 'CLICommandError', 'ConfigResult', 'IOSPCLIConfError', 'IOSPCLIError', 'IOSPSetupInProgress', 'IOSPSystemError', 'IOSPUnexpectedError', 'LOGFILE', 'MAX_WAIT_TIME', '_SUPERFLUOUS_CONFIG_LINE', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__', '__version__', '__warningregistry__', '_log_output_file', '_log_to_file', 'check_and_set_iosp_env', 'check_iosp_session', 'cli', 'clip', 'configure', 'configurep', 'copy', 'datetime', 'execute', 'executep', 'get_current_caf_app_id', 'glob', 'netconf_disable_guestshell', 'netconf_enable_guestshell', 'os', 'parser_dict', 'random', 're', 'shutil', 'subprocess', 'sys', 'valid']

On this version is it ok

>>> cli.clip("show version | inc Ver")
Cisco IOS XE Software, Version 17.09.02a
Cisco IOS Software [Cupertino], Virtual XE Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 17.9.2a, RELEASE SOFTWARE (fc4)

So it looks like you did sudo

csr8000v#guestshell run sudo python3
Python 3.6.8 (default, Dec 22 2020, 19:04:08)
[GCC 8.4.1 20200928 (Red Hat 8.4.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cli
>>> cli.clip("show ip int brief")
Unexpected Error

 So.....

csr8000v#guestshell run python3
Python 3.6.8 (default, Dec 22 2020, 19:04:08)
[GCC 8.4.1 20200928 (Red Hat 8.4.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cli
>>> cli.clip("show ip int brief")
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet1       10.10.20.148    YES NVRAM  up                    up
GigabitEthernet2       unassigned      YES NVRAM  administratively down down
GigabitEthernet3       unassigned      YES NVRAM  administratively down down
Loopback0              10.0.0.1        YES NVRAM  up                    up
Loopback10             unassigned      YES unset  up                    up
Loopback109            10.255.255.9    YES NVRAM  up                    up
VirtualPortGroup0      192.168.1.1     YES NVRAM  up                    up

 I had to dig the docs

> During the Guest Shell installation, SSH access is setup with a key-based authentication. The access to the Guest Shell is restricted to the user with the highest privilege (15) in Cisco IOS. This user is granted access into the Linux container as the guestshell Linux user, who is a sudoer, and can perform all root operations. Commands executed through the Guest Shell are executed with the same privilege that a user has when logged into the Cisco IOS terminal.

So if you are logged in as priv 15 - no need to use sudo.

Hope this helps.

[Jerems]

Thanks you for sharing this explaination.

Actually, i want to achieve the automatic registration of an "outofthebox" router to netbox so my python script (downloaded by the device at bootup thanks to dhcp options) aims to make sure that i can install the necessary librairies (pynetbox) during the inital bootup of the device thanks to guestshell.

From my understanding, this process can not be achieved easily in one script but i might be wrong.

If you have some clues, please let me know ;-).

Thanks again