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# BonFIRE Virtual Clusters on Federated Clouds Demonstration Kit
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#
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# Copyright (c) Fundacion Centro Tecnologico de Supercomputacion de Galicia 2012
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#
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# License GPL Version 3
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#
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# The research leading to these results has received funding from
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# the European Community's Seventh Framework Programme (FP7/2007-2013)
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# under agreement number 257386
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#
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# This software is provided with ABSOLUTELY NO WARRANTY
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#
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'''
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Created on 30/01/2012
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@author: R. Valin
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'''
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import os
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import time
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import subprocess as sub
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"""
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###################################################################
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# Es necesario hacer comparacion name in out y no al reves #
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# ya que salida devuelve hostname con \n y si no no se cumple cond#
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###################################################################
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"""
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def ssh_open(ip, name):
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#cmd = 'ssh -o "StrictHostKeyChecking no"'+ip+' hostname'
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cmd = 'ssh -v '+ip+' hostname'
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print cmd
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#p=os.popen(cmd)
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#a=os.system(cmd)
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out = '**'
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j = 0
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print name
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while name not in out and j<40:
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try:
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#print 'abro popen'
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fout = sub.Popen(cmd,bufsize=-1,shell=True,stdout=sub.PIPE, stderr=sub.STDOUT,close_fds=True)
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#print 'salgo popen'
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out,err =fout.communicate(input=None)
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# print 'communicate'
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j = j + 1;
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except ValueError, msg:
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print 'Error', msg, err
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else:
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if name not in out and j < 40:
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print 'Host not available', j
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time.sleep(float(5))
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elif name not in out and j >= 40:
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print 'Sobrepasado el numero de intentos. 40'
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if j < 40 and name in out:
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print 'Host:', name, 'is ssh available', ip
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def ssh_close(ip, name):
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cmd = 'ssh -o "StrictHostKeyChecking no" '+ip
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#p=os.popen(cmd)
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#a=os.system(cmd)
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fout = sub.Popen(cmd,bufsize=-1,shell=True,stdout=sub.PIPE, stderr=sub.STDOUT)
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out,err =fout.communicate()
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#out = fout.read()
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#print 'out', out
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#out ='pontevedra'
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#out = '**'
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j = 1
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while name in out and j <40:
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try:
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fout = sub.Popen(cmd,bufsize=-1,shell=True,stdout=sub.PIPE, stderr=sub.STDOUT,close_fds=True)
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out,err =fout.communicate(input=None)
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j = j + 1;
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except ValueError, msg:
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print 'Error', msg, err
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else:
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if name in out and j < 40:
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print 'Host available', out, ip, j, err
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time.sleep(float(5))
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elif name in out and j >= 40:
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print 'Sobrepasado el numero de intentos. 40'
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if j < 40 and name not in out:
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print 'Host:', name, 'is not ssh available', j
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def ssh_qhost(ip):
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"Comprobacion del qhost"
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#
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cmd = 'ssh -q '+ip+' qhost -xml'
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out='command not found'
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while 'command not found' in out:
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fout = sub.Popen(cmd,bufsize=-1,shell=True,stdout=sub.PIPE, stderr=sub.STDOUT)
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out,err =fout.communicate()
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#print 'Salida qhost', out
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return out
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#ssh_open('193.144.44.218', 'pontevedra')
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#import paramiko
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#def ssh_open(ip):
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#
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# #cmd='ssh '+ip
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# #print(os.system(cmd))
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#
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# # ssh config file
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# config = paramiko.SSHConfig()
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# file1=open('/home/cesga/.ssh/config', 'r')
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# print ip
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# config.parse(file1)
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# o = config.lookup('ip')
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# print 'nada', o
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# #print 'Dame el passwd para la clave'
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# #passwd=input()
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# #print passwd
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# try:
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# #result=ssh.connect(ip, password=passwd)
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# ssh = paramiko.SSHClient()
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# ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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# ssh.connect(ip)
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# #except StandardError:
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# except StandardError, msg:
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# print 'Error:', msg
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#
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# else:
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# try:
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# stdin, stdout, stderr=ssh.exec_command("hostname")
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# except StandardError, msg:
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# print 'Error:', msg
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# for i in stdout:
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# print i
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# ssh.close()
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#
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