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View Code? Open in Web Editor NEWlittle modified from original parallel-ssh for suite my work needs;
Home Page: http://nullget.sourceforge.net/?q=node/494
License: Other
parallel-ssh's Introduction
原版的pssh,只在使用无密码证书登陆的时候非常方便,而对只支持密码登陆的ssh主机,则会弹出输入密码的交互提示,导致自动化脚本运行不自动了.
由于服务器比较多,并且登陆方式不一样,有的用证书,有的使用密码,所以对pssh作一点hack,以方便提高工作效率.
现在对pssh稍微做了点修改,在定义hosts.txt文件的时候,可选地加入密码项,如果检测到密码则使用sshpass这个命令来处理密码的自动输入功能.这样就能全自动进行了.
原来的hosts.txt 格式:
1. host[:port] [login]
2. [user@]host[:port]
hack后的文件格式:
1. host[:port] [login[:passwd]]
2. [user[:passwd]@]host[:port]
虽然这样有些安全问题,但即使使用证书也存在同样级别的安全问题,因为如果保存hosts.txt的主机不安装,那么这主机上的登陆证书一样不安全. 把hosts.txt的权限设置与证书权限一样高,安全性是一样的.
依赖外部包：
sshpass
修改的源文件：
psshlib/psshutil.py
bin/pssh
bin/pscp
bin/pnuke
bin/prsync
bin/pslurp
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parallel-ssh's Issues
希望能内置expect功能~
当本机第一次pssh远程主机时会失败，因为第一次ssh会出现如下选择：
Are you sure you want to continue connecting (yes/no)? yes
shell下可以用expect来处理，而python下有pexpect，希望pssh能内置此功能~
prsyc error when using -O option
it shows
UnboundLocalError: local variable 'ssh' referenced before assignment
i check the source code and the reson is you commented ssh = ['ssh'] in line 72, and when passwd == None，this variable will not be assigned. then it died when i use -O option.
# ssh = ['ssh']
if passwd == None:
ssh = ['ssh']
# sys.stderr.write('using standard ssh method\n')
else:
cmd = ['sshpass', '-p', passwd, 'ssh']
# sys.stderr.write('using sshpass method\n')
if opts.options:
for opt in opts.options:
ssh += ['-o', opt]
if port:
ssh += ['-p', port]
if opts.ssh_args:
ssh += [opts.ssh_args]
cmd = ['rsync', '-e', ' '.join(ssh)]
i modified code like below, problem resolved.
ssh = ['ssh']
if opts.options:
for opt in opts.options:
ssh += ['-o', opt]
if port:
ssh += ['-p', port]
if opts.ssh_args:
ssh += [opts.ssh_args]
if passwd == None:
cmd = ['rsync', '-e', ' '.join(ssh)]
# sys.stderr.write('using standard ssh method\n')
else:
cmd = ['sshpass', '-p', passwd, 'rsync', '-e', ' '.join(ssh)]
# sys.stderr.write('using sshpass method\n')
pssh --help的主机相关提示还是旧的~
pssh --help
Usage: pssh [OPTIONS] -h hosts.txt command [...]
Options:
--version show program's version number and exit
--help show this help message and exit
-h HOST_FILE, --hosts=HOST_FILE
hosts file (each line "[user@]host[:port]")
-H HOST_STRING, --host=HOST_STRING
additional host entries ("[user@]host[:port]")
主机格式还是旧的，应该是：
1. host[:port] [login[:passwd]]
2. [user[:passwd]@]host[:port]
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