运维自动化发展已经是势不可挡，传统的靠大量人力运维的方式渐不能满足企业IT发展的需求，其中Puppet自动化更是受到IT人士的青睐，那今天我们一起来研究一下puppet客户端的自动安装脚本。脚本不足之处，欢迎指正，共同进步！

  背景：当我们需要使用puppet批量管理服务器时，首先需要指定FQDN名或者DNS解析，然后接下来就是批量安装puppet客户端了，怎样安装比较快呢？这里仅供参考，把脚本放置在kickstart ks.cfg文件%post段，系统安装完毕后，会执行该脚本！直接看脚本如下：

  1. #!/bin/sh   
  2. #auto install puppet client  
  3. #wugk 2012-11-30  
  4. #PUPPET_SERVER=192-9-117-160-app.com  
  5. #此脚本为客户端安装，同时包含服务器端安装，根据实际需求修改即可。 
  6. cat <<EOF  
  7. ++++++++++++++++++++welcome to use auto install puppet ++++++++++++++++++  
  8. +++++++++-----------------------------------------------+++++++++++++++++ 
  9. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
  10. EOF  
  11. #安装ruby及相关库支持      
  12. echo "Please waiting ruby soft ........"
  13.     rpm -ivh compat-readline5-5.2-17.1.el6.x86_64.rpm ruby-libs-1.8.7.352-7.el6_2.x86_64.rpm ruby-1.8.7.352-7.el6_2.x86_64.rpm ruby-devel-1.8.7.352-7.el6_2.x86_64.rpm  
  15. echo  
  16. echo  
  17. #定义客户端安装函数client，即定义client命令      
  18. client ()  
  20. {  
  21.     echo "Now install puppet client rpm -ivh puppet-2.7.20-1.el6.noarch.rpm"
  23.     #安装facter源码包，主要用于检测客户端本机信息，例如主机名、ip、内存等信息   
  24.     ####now install facter soft  
  25.     tar xzf facter-1.6.8.tar.gz ;cd  facter-1.6.8/ ;/usr/bin/ruby install.rb  
  27.     #安装puppet客户端程序，这里采用rpm包安装方式 
  28.     cd ../; rpm -ivh --nodeps  puppet-2.7.20-1.el6.noarch.rpm
  30.     #配置config  puppet puppet_Server可以手动输入，也可以指定变量 
  31.     ####sed auto puppet config  
  32. read -p "Please insert puppet server address:" PUPPET_SERVER   
  33.     sed -i 's/^#PUPPET/PUPPET/g' /etc/sysconfig/puppet 
  35.     #指定服务端主机名，并配置监听端口、允许认证      
  36.     grep $PUPPET_SERVER /etc/sysconfig/puppet ;[ $? -ne 0 ]&&sed -i "/PUPPET_SERVER/s/puppet/$PUPPET_SERVER/g" /etc/sysconfig/puppet      grep listen /etc/puppet/puppet.conf ;[ $? -ne 0 ]&&echo "   listen = true" >> /etc/puppet/puppet.conf  
  37.     tail -2 /etc/puppet/auth.conf |grep "allow *" ;[ $? -ne 0 ]&&echo "allow *" >> /etc/puppet/auth.conf  
  38.     echo -e "[puppetrunner]\nallow  * " >/etc/puppet/namespaceauth.conf  
  39.     #配置puppet master服务器端主机名和客户端本地主机名，获取本机的ip信息，并加入/etc/hosts中 
  40.     grep $PUPPET_SERVER /etc/hosts ;[  $? -ne 0 ] &&echo "`echo $PUPPET_SERVER|awk -F- '{print $1"."$2"."$3"."$4}'` $PUPPET_SERVER" >>/etc/hosts  
  42.     echo +++++++++++++++++++++++++++++++++++++++++++++++++++++  
  43.     ETH=`ifconfig |grep Bcast|cut -d: -f 2|awk '{print $1}'`  
  44.     echo "Please insert PUPPET_SERVER /etc/hosts :: $ETH `echo $ETH|sed 's/\./-/g'`-app.com"
  46.     cat /etc/hosts |grep -v 127 |grep $ETH ;[  $? -ne 0 ] &&echo "$ETH `echo $ETH|sed 's/\./-/g'`-app.com" >>/etc/hosts  
  47.     echo "The puppet is install puppet ,please exec puppet agent --server=$PUPPET_SERVER --test"
  48.     HOSTNAME=`echo $ETH|sed 's/\./-/g'`-app.com   
  49.     hostname $HOSTNAME  
  50.     cat /etc/hosts|grep 127.0.0.1|grep $HOSTNAME ;[ $? -ne 0 ] &&sed -i "s/127.0.0.1/127.0.0.1 $HOSTNAME/" /etc/hosts  
  51.     rm -rf facter-1.6.8  
  53. }  #定义服务器端安装函数server，即定义server命令 
  54. server ()  
  56. {  
  57.     echo "Now install puppet client rpm -ivh puppet-2.7.20-1.el6.noarch.rpm"
  58.     #安装puppet master、mongrel支持Nginx+多端口puppetmaster负载均衡 
  59.     rpm -ivh --nodeps puppet-server-2.7.20-1.el6.noarch.rpm puppet-2.7.20-1.el6.noarch.rpm 
  60.     rpm -ivh --nodeps ruby-irb-1.8.7.352-7.el6_2.x86_64.rpm 
  61.     rpm -ivh --nodeps ruby-rdoc-1.8.7.352-7.el6_2.x86_64.rpm 
  62.     rpm -ivh --nodeps rubygem-daemons-1.0.10-2.el6.noarch.rpm 
  63.     rpm -ivh --nodeps rubygem-fastthread-1.0.7-2.el6.x86_64.rpm 
  64.     rpm -ivh --nodeps rubygem-gem_plugin-0.2.3-3.el6.noarch.rpm 
  65.     rpm -ivh --nodeps rubygem-mongrel-1.1.5-3.el6.x86_64.rpm 
  66.     rpm -ivh --nodeps rubygem-rake-0.8.7-2.1.el6.noarch.rpm 
  67.     rpm -ivh --nodeps rubygems-1.3.7-1.el6.noarch.rpm 
  68.     #安装facter 
  69.     ####now install facter soft  
  70.     tar xzf facter-1.6.8.tar.gz ;cd  facter-1.6.8/ ;/usr/bin/ruby install.rb  
  72.     ####sed auto puppet config   
  73.     echo  
  74. read -p "Please insert puppet server address:" PUPPET_SERVER  
  76.     grep listen /etc/puppet/puppet.conf ;[ $? -ne 0 ]&&echo "   listen = true" >> /etc/puppet/puppet.conf  
  77.     grep autosign /etc/puppet/puppet.conf ;[ $? -ne 0 ]&&sed -i '/ssldir/a\    autosign = true' /etc/puppet/puppet.conf  
  78.     tail -2 /etc/puppet/auth.conf |grep "allow *" ;[ $? -ne 0 ]&&echo "allow *" >> /etc/puppet/auth.conf  
  79.     tail -1 /etc/sysconfig/puppetmaster |grep "mongrel";[ $? -ne 0 ]&& echo -e "PUPPETMASTER_PORTS=( 18140 18141 18142 18143 18144 )\nPUPPETMASTER_EXTRA_OPTS=\"-servertype=mongrel  --ssl_client_header=HTTP_X_SSL_SUBJECT\"" >>/etc/sysconfig/puppetmaster  
  81.     #配置puppet master 、Hosts 
  83.     grep $PUPPET_SERVER /etc/hosts ;[  $? -ne 0 ] &&echo "`echo $PUPPET_SERVER|awk -F- '{print $1"."$2"."$3"."$4}'` $PUPPET_SERVER" >>/etc/hosts  
  85.     echo +++++++++++++++++++++++++++++++++++++++++++++++++++++  
  86.     echo  
  88.     ETH=`ifconfig |grep Bcast|cut -d: -f 2|awk '{print $1}'`  
  89.     echo "Please insert PUPPET_SERVER /etc/hosts :: $ETH `echo $ETH|sed 's/\./-/g'`-app.com"
  90.     cat /etc/hosts |grep -v 127 |grep $ETH ;[  $? -ne 0 ] && echo "$ETH `echo $ETH|sed 's/\./-/g'`-app.com" >>/etc/hosts  
  92.     HOSTNAME=`echo $ETH|sed 's/\./-/g'`-app.com   
  93.     hostname $HOSTNAME  
  94.     cat /etc/hosts|grep 127.0.0.1|grep $HOSTNAME ;[ $? -ne 0 ] &&sed -i "s/127.0.0.1/127.0.0.1 $HOSTNAME/" /etc/hosts  
  95.     cd ../ ;rm -rf facter-1.6.8  
  97. }  
  98. #如下case条件语句可以选用，这里仅供参考，真实安装去掉函数定义和case方式即可。 
  99. ###config caseselect
  100. #$1表示第一个参数  
  101. case $1  in
  103.    client )  
  104.    client   
  105. ;;    
  106.    server )  
  107.    server   
  108. ;;  
  109.     * )  
  110.   echo "Please exec $0 { client or server }"
  111. ;;  
  113. esac

此脚本仅供参考，欢迎大家多交流！