轻量级自动化运维工具pssh与pslurp
pssh是一个基于Python编写，可在多台服务器上执行命令，文件的并行复制的工具
要使用pssh工具包，必须配置本地主机和被管理的远程主机之间ssh单向的免秘钥认证
1 安装
# env Python 2.7.5
wget https://pypi.python.org/packages/source/p/pssh/pssh-2.3.1.tar.gz
tar zxvf pssh-2.3.1.tar.gz
cd pssh-2.3.1
python setup.py build
python setup.py install
pssh --version
2 简单使用
2.1 介绍
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pssh 多主机并行运行命令
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pscp 传输文件到多个hosts，他的特性和scp差不多
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pslurp 从多台远程机器拷贝文件
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pnuke kill远程机器的进程
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pslurp 从远程主机考本文件到本地
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prsync 使用rsync协议从本地计算机同步到远程主机
# pssh --help
Usage: pssh [OPTIONS] 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]")
-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
2.2 执行命令
pssh -ih hosts.list "ifconfig eth0 | grep inet | awk '{print $2}'" # 执行命令
pssh -ih hosts.list -o /tmp/pssh/ uptime # 执行结果输出到文件
pscp -h hosts.list anaconda-ks.cfg /tmp/ #复制本地文件到远程主机
pscp -h hosts.list -r /data /tmp/ # 递归复制文件本地文件到远程主机
pslurp -h ecs1.nc -L /tmp/out/ /tmp/name hostname # 复制远程主机/tmp/name文件到本地/tmp/out目录中，并重命名为hostname，本地目录会自动新建远程主机的名的目录
prsync -h hosts.list -r /mnt/ /mnt/
pnuke -h hosts.list nginx # 批量杀死进程
pssh -h host.ip -P -I < cmd.sh
# 执行命令
#pssh -ih hosts.list uptime
[1] 16:56:57 [SUCCESS] 172.16.0.77
16:56:57 up 297 days, 20:40, 0 users, load average: 2.08, 1.99, 1.97
[2] 16:56:57 [SUCCESS] 172.16.0.202
16:56:57 up 297 days, 20:40, 0 users, load average: 1.88, 2.03, 2.01
[3] 16:56:57 [SUCCESS] 172.16.0.138
16:56:57 up 297 days, 20:40, 0 users, load average: 2.15, 2.15, 2.13
[4] 16:56:57 [SUCCESS] 172.16.0.78
16:56:57 up 297 days, 20:40, 0 users, load average: 2.89, 2.68, 2.68
[5] 16:56:57 [SUCCESS] 172.16.0.201
16:56:57 up 297 days, 20:40, 0 users, load average: 2.00, 2.02, 2.04
[6] 16:56:57 [SUCCESS] 172.16.0.139
16:56:57 up 297 days, 20:40, 0 users, load average: 1.89, 1.91, 1.94
#cat hosts.list
172.16.0.77
172.16.0.202
172.16.0.139
172.16.0.138
172.16.0.78
172.16.0.201
# 命令结果到处到文件
#pssh -h hosts.lsit -o /tmp/pssh/ uptime
[1] 17:05:01 [SUCCESS] 172.16.0.77
[2] 17:05:01 [SUCCESS] 172.16.0.202
[3] 17:05:01 [SUCCESS] 172.16.0.139
[4] 17:05:01 [SUCCESS] 172.16.0.138
[5] 17:05:01 [SUCCESS] 172.16.0.78
[6] 17:05:01 [SUCCESS] 172.16.0.201
#ll /tmp/pssh/
total 24
-rw-r--r-- 1 root root 72 May 31 17:05 172.16.0.138
-rw-r--r-- 1 root root 72 May 31 17:05 172.16.0.139
-rw-r--r-- 1 root root 72 May 31 17:05 172.16.0.201
-rw-r--r-- 1 root root 72 May 31 17:05 172.16.0.202
-rw-r--r-- 1 root root 72 May 31 17:05 172.16.0.77
-rw-r--r-- 1 root root 72 May 31 17:05 172.16.0.78
#cat /tmp/pssh/172.16.0.138
17:05:01 up 297 days, 20:49, 0 users, load average: 2.29, 2.12, 2.12
# 拉取远程主机文件到本地，本地会自动建立对应的远程主机的目录
#pslurp -h hosts.list -L /tmp/out/ /tmp/name hostname
[1] 18:13:54 [SUCCESS] 172.16.0.77
[2] 18:13:54 [SUCCESS] 172.16.0.202
[3] 18:13:54 [SUCCESS] 172.16.0.139
[4] 18:13:54 [SUCCESS] 172.16.0.78
[5] 18:13:54 [SUCCESS] 172.16.0.138
[6] 18:13:54 [SUCCESS] 172.16.0.201
#tree /tmp/out/
/tmp/out/
├── 172.16.0.138
│ └── hostname
├── 172.16.0.139
│ └── hostname
├── 172.16.0.201
│ └── hostname
├── 172.16.0.202
│ └── hostname
├── 172.16.0.77
│ └── hostname
└── 172.16.0.78
└── hostname