Question

I’m trying to deploy a django app with fabric and get the following
error:

Alexs-MacBook:fabric alex$ fab config:instance=peergw deploy -H <ip> - 
u <username> -p <password> 

[192.168.2.93] run: cat /etc/issue 

Traceback (most recent call last): 

  File "build/bdist.macosx-10.6-universal/egg/fabric/main.py", line 

419, in main 

  File "/Users/alex/Rabota/server/mx30/scripts/fabric/fab/ 

commands.py", line 37, in deploy 

    checkup() 

  File "/Users/alex/Rabota/server/mx30/scripts/fabric/fab/ 

commands.py", line 140, in checkup 

    if not 'Ubuntu' in run('cat /etc/issue'): 

  File "build/bdist.macosx-10.6-universal/egg/fabric/network.py", line 

382, in host_prompting_wrapper 

  File "build/bdist.macosx-10.6-universal/egg/fabric/operations.py", 

line 414, in run 

  File "build/bdist.macosx-10.6-universal/egg/fabric/network.py", line 

65, in __getitem__ 

  File "build/bdist.macosx-10.6-universal/egg/fabric/network.py", line 

140, in connect 

  File "build/bdist.macosx-10.6-universal/egg/paramiko/client.py", 

line 149, in load_system_host_keys 

  File "build/bdist.macosx-10.6-universal/egg/paramiko/hostkeys.py", 

line 154, in load 

  File "build/bdist.macosx-10.6-universal/egg/paramiko/hostkeys.py", 

line 66, in from_line 

  File "build/bdist.macosx-10.6-universal/egg/paramiko/rsakey.py", 

line 61, in __init__ 

paramiko.SSHException: Invalid key 

Alexs-MacBook:fabric alex$ 

I can’t connect to the server via ssh. What can be my problem?

Regards, Arshavski Alexander.

Answer 1

Going out on a limb here, I’d say your SSH key is incorrect:

paramiko.SSHException: Invalid key

What does your servers say when you try to ssh into it, using the username and password you were providing to fabric?

On second thought: as you are providing fabric with a password, that might suggest your SSH host key has changed and / or has not yet been added to ~/.ssh/known_hosts.