Script is use to execute any command on multiple remote hosts.
#runcmd --help
Usage: runcmd -u "username" -d "domain" -s "servers1,server2" -c "command"
Options:
-h, --help show this help message and exit
-s SERVER, --server=SERVER
servers to update
-u USER, --user=USER user name
-d DOMAIN, --domain=DOMAIN
domain name
-c COMMAND, --command=COMMAND
remote command to execute
-v, --verbose verbose
Copy paste following in "runcmd" and make sure that file is in executable mode.
#!/usr/bin/python
#Auther: Prasad Wani
#This script will execute the given command on any remote server
#
import commands
from optparse import OptionParser
import pexpect
import os
import getpass
import paramiko
import ConfigParser
import sys
usage = 'usage: %prog -u "username" -d "domain" -s "servers1,server2" -c "command"'
parser = OptionParser(usage)
parser.add_option('-s', '--server', dest='server', help='servers to update')
parser.add_option('-u', '--user', dest='user', default='prasad', help='user name')
parser.add_option('-d', '--domain', dest='domain', default='sjc2', help='domain name')
parser.add_option('-c', '--command', dest='command', help='remote command to execute')
parser.add_option('-v', '--verbose', dest='verbose', action='store_true', help='verbose')
options, args = parser.parse_args()
if not len(sys.argv) > 1:
parser.error("Some required options are missing, please run 'runcmd --help'")
hosts = options.server
hosts = hosts.split(',')
username = options.user
password = getpass.getpass(prompt="\033[34m"'Please enter the password for user'+' '+username+':'"\033[0m")
def verify_password (host, username):
global password
try:
ssh = paramiko.SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, 22, username, password)
ssh.close()
except paramiko.AuthenticationException:
print "\033[31m""Error: Authentication Failed""\033[34m"
password = getpass.getpass(prompt="\033[34m"'Please enter the password for user'+' '+username+':'"\033[0m")
verify_password(host, username)
for host in hosts:
host = host.strip()+"."+options.domain+".com"
print host
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, 22, username, password)
print options.command
stdin, stdout, stderr = ssh.exec_command(options.command)
print "------------"
print stdout.read()
ssh.close()
