The other day I wanted to jack around some goofy script and run it on a bunch of hosts, but… without keys, it was drag to do in a simple script… So… a buddy of mine had used paramiko to do some ssh action in python.
After reading Jesse‘s article, I used paramiko to copy a script around, run it and collect the output on the local filesystem
Here is some crap example:
import os import paramiko import socket import sys # yeh... my script really doesn't look like this... host = 'super.cool.hostname.example.com' username = 'root' password = 'passwords_are_for_cowards' tmp = '/tmp/cool_script.sh' # copy our cool_script over to the host in /tmp transport = paramiko.Transport( ( host, 22 ) ) transport.connect( username = username, password = password ) sftp = paramiko.SFTPClient.from_transport( transport ) sftp.put( 'cool_script.sh', tmp ) sftp.close() # seems like ssh.connect sometimes fails due to some # weird dns issue, so hack around it... ip = socket.gethostbyname( host ) # chmod and run the script ssh = paramiko.SSHClient() ssh.load_system_host_keys() ssh.set_missing_host_key_policy( paramiko.AutoAddPolicy() ) ssh.connect( ip, username = username, password = password ) stdin, stdout, stderr = ssh.exec_command( 'chmod 755 ' + tmp + ';' + tmp ) data = stdout.read() ssh.close() # save the output as json on the local filesystem filename = host + '.json' output = open( filename, 'w' ) output.write( data ) output.close()
EZ-PZ!
