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Access to openstack instance using python sdk

asked 2018-12-14 06:05:19 -0500

najeh gravatar image

updated 2018-12-15 05:22:56 -0500

How can i access to openstack instances using python sdk?

import paramiko

def runSshCmd(hostname, username, password, cmd, timeout=None):

client = paramiko.SSHClient()

client.set_missing_host_key_policy(paramiko.AutoAddPolicy())

client.connect(hostname, username=username, password=password,
        allow_agent=False, look_for_keys=False, timeout=timeout)

stdin, stdout, stderr = client.exec_command(cmd)

data = stdout.read()

print data

print client

client.close()

runSshCmd("192.168.x.x", "controller", "mypass", "uname -a")

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answered 2018-12-14 06:24:44 -0500

The SDK is for managing OpenStack objects - launch and delete instances, attach volumes, upload images etc. Access to instances is normally via network protocols such as ssh, http, etc, not via the SDK.

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I tried to access to instance using paramika python library but i failed.

Have you any other suggestion?

najeh gravatar imagenajeh ( 2018-12-14 15:16:05 -0500 )edit
1

I misread your question as “OpenStack SDK”, sorry. Paramiko is a library that implements SSH. If you can access the instance with SSH from the command line, it should also work with Paramiko.

Bernd Bausch gravatar imageBernd Bausch ( 2018-12-14 16:46:11 -0500 )edit

@Bernd Bausch This the last line of above code.

I tried the code to connect to the controller and this the result Linux controller 4.15.0-42-generic #45-Ubuntu SMP Thu Nov 15 19:32:57 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux <paramiko.client.sshclient object="" at="" 0x7f584453b550="">

am i connected now

najeh gravatar imagenajeh ( 2018-12-15 04:25:30 -0500 )edit

But for the openstack instance i couldn't access i think because i created without a password

the message error is: paramiko.ssh_exception.SSHException: No authentication methods available

najeh gravatar imagenajeh ( 2018-12-15 05:53:35 -0500 )edit

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Asked: 2018-12-14 06:05:19 -0500

Seen: 101 times

Last updated: Dec 15 '18