Re: [Fab-user] Fabric suddenly no longer working

[Rob Marshall]

Hi,

I think this may be because of a paramiko error I've started getting:

>>> import paramiko

>>> import os

>>> ssh = paramiko.SSHClient()

>>> ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

>>> ssh.load_host_keys(os.path.join(os.environ['HOME'],'.ssh','known_hosts'))

>>> ssh.connect('10.10.1.85',username='testuser01',password='TestPass01')

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 424, in connect

    passphrase,

  File "/usr/local/lib/python2.7/dist-packages/paramiko/client.py", line 652, in _auth

    self._transport.auth_publickey(username, key))

  File "/usr/local/lib/python2.7/dist-packages/paramiko/transport.py", line 1446, in auth_publickey

    self.auth_handler.auth_publickey(username, key, my_event)

  File "/usr/local/lib/python2.7/dist-packages/paramiko/auth_handler.py", line 103, in auth_publickey

    self._request_auth()

  File "/usr/local/lib/python2.7/dist-packages/paramiko/auth_handler.py", line 165, in _request_auth

    self.transport._send_message(m)

  File "/usr/local/lib/python2.7/dist-packages/paramiko/transport.py", line 1707, in _send_message

    self.packetizer.send_message(data)

  File "/usr/local/lib/python2.7/dist-packages/paramiko/packet.py", line 385, in send_message

    out = self.__block_engine_out.update(packet)

  File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/primitives/ciphers/base.py", line 149, in update

    return self._ctx.update(data)

  File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ciphers.py", line 120, in update

    n = self.update_into(data, buf)

  File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ciphers.py", line 131, in update_into

    "unsigned char *", self._backend._ffi.from_buffer(buf)

TypeError: from_buffer() cannot return the address of the raw string within a str or unicode or bytearray object

I've tried various "fixes" I found for Ubuntu 16.04 and Python 2.7 but none have fixed the problem.

Rob

On Mon, Jul 23, 2018 at 4:04 PM, Rob Marshall <address@hidden> wrote:

Hi,

Is there a way to get more debugging information out of Fabric? I am having problems doing even simple commands, e.g.:

address@hidden: [tools]$ python

Python 2.7.12 (default, Dec  4 2017, 14:50:18) 

[GCC 5.4.0 20160609] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> from fabric.api import *

>>> with settings(warn_only=True,user='testuser01',password='TestPass01',prompt='assword',host_string='10.10.1.85'):

...   results = sudo('w')

... 

[10.10.1.85] sudo: w

address@hidden: [tools]$ 

As you an see, when I execute the command it crashes and I don't know why.

Thanks,

Rob