安装puppet最方便的方式是使用EPEL软件源，因而在安装master和agent之前，请参考《配置EPEL软件源》添加EPEL软件源。
安装master
master环境：virtualbox虚拟机，操作系统为CentOS 6.2，机器名称为centos-server.s3lighting.com，IP地址为192.168.12.215。
1. 使用yum方式安装puppet-master包：
[root@centos-server ~]$ yum install puppet-server
安装完成后使用chkconfig可以发现多出了两个服务：puppetmaster和puppet。
2. 配置iptables防火墙。原来的防火墙策略如下：
[root@centos-server ~]$ iptables -L -n --line-numbers Chain INPUT (policy ACCEPT) num target prot opt source destination 1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 4 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 5 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain FORWARD (policy ACCEPT) num target prot opt source destination 1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT) num target prot opt source destination
按照下面的方式开启puppet的8140端口：
[root@centos-server ~]$ iptables -I INPUT 5 -p tcp -m tcp --dport 8140 -m state --state NEW -j ACCEPT [root@centos-server ~]$ service iptables save iptables: Saving firewall rules to /etc/sysconfig/iptables:[ OK ] [root@centos-server ~]$ service iptables restart iptables: Flushing firewall rules: [ OK ] iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Unloading modules: [ OK ] iptables: Applying firewall rules: [ OK ]
3. 启动puppetmaster服务：
[root@centos-server ~]$ chkconfig puppetmaster on
[root@centos-server ~]$ service puppetmaster start
安装agent
agent环境：virtualbox虚拟机，操作系统为CentOS 6.2，机器名称为centos-client.s3lighting.com，IP地址为192.168.12.54。
1. 使用yum方式安装puppet包：
[root@centos-client ~]$ yum install puppet
安装完成后使用chkconfig可以发现多出了一个服务：puppet。
2. 配置puppet server：
[root@centos-client etc]# echo "server = centos-server.s3lighting.com" >> /etc/puppet/puppet.conf
3. 在/etc/hosts中添加服务器地址：
[root@centos-client etc]# echo "192.168.12.215 centos-server centos-server.s3lighting.com" >> /etc/hosts
服务器SSL认证
每一个agent都需要通过master认证以后，才能从master获取配置信息。
1. agent中发出请求：
[root@centos-client etc]# puppet agent --test info: Creating a new SSL key for centos-client.s3lighting.com warning: peer certificate won't be verified in this SSL session info: Caching certificate for ca warning: peer certificate won't be verified in this SSL session warning: peer certificate won't be verified in this SSL session info: Creating a new SSL certificate request for centos-client.s3lighting.com info: Certificate Request fingerprint (md5): 92:D8:57:A1:83:ED:F0:30:3C:08:98:6E:41:E7:1B:03 warning: peer certificate won't be verified in this SSL session warning: peer certificate won't be verified in this SSL session warning: peer certificate won't be verified in this SSL session Exiting; no certificate found and waitforcert is disabled
2. master查询收到的认证请求：
[root@centos-server ~]$ puppet cert list centos-client.s3lighting.com (92:D8:57:A1:83:ED:F0:30:3C:08:98:6E:41:E7:1B:03)
使用sign命令认证收到的请求：
[root@centos-server ~]$ puppet cert sign centos-client.s3lighting.com notice: Signed certificate request for centos-client.s3lighting.com notice: Removing file Puppet::SSL::CertificateRequest centos-client.s3lighting.com at '/var/lib/puppet/ssl/ca/requests/centos-client.s3lighting.com.pem'
3. agent再次发出请求命令：
[root@centos-client puppet]# puppet agent --test warning: peer certificate won't be verified in this SSL session info: Caching certificate for centos-client.s3lighting.com info: Caching certificate_revocation_list for ca info: Caching catalog for centos-client.s3lighting.com info: Applying configuration version '1343033559' info: Creating state file /var/lib/puppet/state/state.yaml notice: Finished catalog run in 0.01 seconds
OK，agent可以从master成功地获取配置信息了。
简单的测试
1. 在master创建文件/etc/puppet/manifests/site.pp，内容如下：
file {'testfile': path => '/tmp/testfile', ensure => present, mode => 0640, content=> "I'm a test file." }
2. 在agent执行配置请求：
[root@centos-client ~]# puppet agent --test info: Caching catalog for centos-client.s3lighting.com info: Applying configuration version '1343091079' notice: /Stage[main]//File[testfile]/ensure: created notice: Finished catalog run in 0.02 seconds
可以看到testfile被创建了。