param.py

#!/usr/bin/env python
import paramiko
import json

def runcommand(servername,user_name,user_passwd,command):
    ssh=paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect(servername,username=user_name,password=user_passwd)
    stdin,stdout,stderr=ssh.exec_command(command)
    outcome=stdout.readlines()
    ssh.close()
    return outcome

def main():
    f=open("creds.json","r")
    mydata=json.load(f)
    servername=mydata['servername']
    user_name=mydata['user_name']
    user_passwd=mydata['user_password']
    print "loaded the credentials from the json file"
    print "server name is {}".format(servername)
    print "user name is {}".format(user_name)
    print "user password is {}".format(user_passwd)
    print "taking connection to {}".format(servername)
    print "will be running the below command on {}".format(servername)
    cmd="hostnae"
    print cmd
    ssh=paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect(servername,username=user_name,password=user_passwd)
    stdin,stdout,stderr = ssh.exec_command(cmd)
    ssh.close()
    print "output of the command is "
    if stdout.readlines():
        print stdout.readlines()
    else:
        print "command entered is wrong"
        newcmd=raw_input("enter a new command:")
        outcome=runcommand(servername,user_name,user_passwd,newcmd)
    print "new command {} output is {}".format(newcmd, outcome)



if __name__=="__main__":
    main()