等到paramiko exec_command完成

时间:2017-11-10 19:58:23

标签: python paramiko

我有一个python脚本我正在尝试安装rpm包,但是当我发送命令进行安装时,它不会等待命令完成,然后重新启动服务。我已经阅读了很多关于使用“recv_exit_status()”的论坛,但我认为我没有正确使用它。

这就是我所拥有的:

#!/usr/bin/python

import paramiko, os
from getpass import getpass

# Setting Variables 
Hosts = [ '192.168.1.1', '192.168.1.2'] #IPs changed for posting
username = 'root'
print 'Enter root password on remote computer:'
password = getpass()
port = 22
File = 'Nessus-6.11.2-es7.x86_64.rpm'

for host in Hosts:
    print 'Finished copying files. Now executing on remote computer'

    #Setting up SSH session to run commands
    remote_client = paramiko.SSHClient()
    remote_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    remote_client.connect(host, username=username, password=password)

    InstallNessus = 'rpm -U --percent %s'%File
    stdin, stdout, stderr = remote_client.exec_command(InstallNessus)
    stdout.channel.recv_exit_status()
    lines = stdout.readlines()
    for line in lines:
        print line
    stdin, stdout, stderr = remote_client.exec_command('systemctl restart nessusd.service')

    remote_client.close()

2 个答案:

答案 0 :(得分:0)

它是channel.recv_exit_status(),而不是stdout.channel.recv_exit_status()

但是,由于您尝试在许多服务器上运行相同的命令,因此parallel-ssh之类的内容更适合,并且比paramiko更快,无论是顺序还是并行。

执行此操作的代码也更简单,只需:

from pssh.pssh2_client import ParallelSSHClient

hosts = ['192.168.1.1', '192.168.1.2']
_file = 'Nessus-6.11.2-es7.x86_64.rpm'
cmd = 'rpm -U --percent %s' % _file

client = ParallelSSHClient(hosts, user='<user>', password='<password>')

output = client.run_command(cmd)
for host, host_output in output.items():
    for line in host_output.stdout:
        print "Host %s: %s" % (host, line)
    print "Host %s exit code %s" % (host, host_output.exit_code)

restart_out = client.run_command('systemctl restart nessusd.service')
# Just wait for completion
client.join(restart_out)

有关详细信息,请参阅documentation

答案 1 :(得分:0)

add get_pty = True这将等到命令执行完成。 stdin,stdout,stderr = self.ssh.exec_command(command,get_pty = True)

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