pssh批量管理服务器

pssh批量管理服务器

目录

pssh是一个python编写可以在多台服务器上执行命令的工具，同时支持拷贝文件，是同类工具中很出色的，类似pdsh。

• parallel-ssh: https://code.google.com/p/parallel-ssh/

安装

• 编译安装

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wget http://parallel-ssh.googlecode.com/files/pssh-2.3.1.tar.gz tar zxvf pssh-2.3.1.tar.gz cd pssh-2.3.1/ python setup.py install

• yum安装

1 2	yum -y install epel-release yum -y install pssh

• cygwin下安装

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apt-cyg install python-setuptools easy_install pip pip install pssh

使用pssh

简要范例

• pssh 在多个主机上并行地运行命令。
  • pssh -h hosts.txt -l irb2 -o /tmp/foo uptime
• pscp 传输文件到多个主机，类似scp。
  • pscp -h hosts.txt -l irb2 foo.txt /home/irb2/foo.txt
• pslurp 从多个主机拷贝到本地。
  • Example: pslurp -h hosts.txt -L /tmp/outdir -l irb2 /home/irb2/foo.txt foo.txt
• pnuke 在多个主机并行地杀进程。
  • pnuke -h hosts.txt -l irb2 java
• prsync 使用rsync协议从本地同步到远程主机。
  • prsync -r -h hosts.txt -l irb2 foo /home/irb2/foo
• 避免ssh检查host keys：

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  pssh -i -H host1 -H host2 \ -x "-O StrictHostKeyChecking=no -O UserKnownHostsFile=/dev/null -O GlobalKnownHostsFile=/dev/null" \ echo hi

  • 也可以加到.ssh/config

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    cat >>~/.ssh/config <<EOF StrictHostKeyChecking=no UserKnownHostsFile=/dev/null GlobalKnownHostsFile=/dev/null EOF

• host文件格式

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  # 可以有空行，#开头的是注释行 # 每行一个主机，格式： [user@]host[:port] 192.168.1.4 root@192.168.1.5 root@192.168.1.7:2203

pssh --help

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Usage: pssh [OPTIONS] command [...]   Options:   --version             show programs version number and exit   --help                show this help message and exit   -h HOST_FILE, --hosts=HOST_FILE                         hosts file (each line "[user@]host[:port]")                         #如果指定了多个host文件(多次使用-h选择)，pssh将它们连接在一起使用；                         #如果同一主机出现多次，pssh将会多次连接。   -H HOST_STRING, --host=HOST_STRING                         additional host entries ("[user@]host[:port]")   -l USER, --user=USER  username (OPTIONAL)   -p PAR, --par=PAR     max number of parallel threads (OPTIONAL)   -o OUTDIR, --outdir=OUTDIR                         output directory for stdout files (OPTIONAL)   -e ERRDIR, --errdir=ERRDIR                         output directory for stderr files (OPTIONAL)   -t TIMEOUT, --timeout=TIMEOUT                         timeout (secs) (0 = no timeout) per host (OPTIONAL)   -O OPTION, --option=OPTION                         SSH option (OPTIONAL)   -v, --verbose         turn on warning and diagnostic messages (OPTIONAL)   -A, --askpass         Ask for a password (OPTIONAL)   -x ARGS, --extra-args=ARGS                         Extra command-line arguments, with processing for                         spaces, quotes, and backslashes   -X ARG, --extra-arg=ARG                         Extra command-line argument   -i, --inline          inline aggregated output and error for each server   --inline-stdout       inline standard output for each server   -I, --send-input      read from standard input and send as input to ssh   -P, --print           print output as we get it   Example: pssh -h hosts.txt -l irb2 -o /tmp/foo uptime