centos_6.5 64位 安装puppet

我们先准备三台centos 6.5 x86_64机器，做好安装前的工作。

    OS: Centos 6.5 x86_64

    Puppet master: master.com (192.168.37.72)

    Puppet clients: client1.com (192.168.37.83)

    Puppet clients: client2.com (192.168.37.82)

一、先做好安装的准备工作：

1. 在master和client均关闭selinux，iptables：
   

   停止iptables

   [root@master ~]# service iptables stop
   iptables：清除防火墙规则：                                 [确定]
   iptables：正在卸载模块：                                    [确定]
   [root@master ~]# chkconfig --list |grep iptables

   iptables           0:关闭    1:关闭    2:启用    3:启用    4:启用    5:启用    6:关闭

   [root@master ~]# chkconfig  ptables off

   关闭selinux

   [root@master ~]# vim /etc/selinux/config

   
   # This file controls the state of SELinux on the system.
   # SELINUX= can take one of these three values:
   #     enforcing - SELinux security policy is enforced.
   #     permissive - SELinux prints warnings instead of enforcing.
   #     disabled - No SELinux policy is loaded.
   SELINUX=enforcing 改成 SELINUX=disabled
   # SELINUXTYPE= can take one of these two values:
   #     targeted - Targeted processes are protected,
   #     mls - Multi Level Security protection.
   SELINUXTYPE=targeted

2. 为了保证能向master主机申请到正确的有效证书，建议master和client设置ntp：

   [root@master ~]#  yum -y install ntp

   [root@master ~]#  ntpdate pool.ntp.org

   [root@master ~]#  chkconfig ntpd on

   [root@master ~]# chkconfig --list|grep ntp

   ntpd               0:关闭    1:关闭    2:启用    3:启用    4:启用    5:启用    6:关闭
   ntpdate            0:关闭    1:关闭    2:关闭    3:关闭    4:关闭    5:关闭    6:关闭

   [root@master ~]# service ntpd start
   正在启动 ntpd：                                            [确定]

3. 在master和client端设置hosts

   Puppet 要求所有机器有完整的域名，如果没有 DNS 服务器提供域名的话，可以在机器上设置主机名（注意：要先安装 Puppet之前设置主机名，因为安装 Puppet 时会把主机名写入证书，客户端和服务端通信需要这个证书）,为了简化安装过程我配置了/etc/hosts。

   [root@master ~]# vim /etc/hosts

   127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
   ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
   192.168.37.72 master.com
   192.168.37.83 client1.com
   192.168.37.82 client2.com

4. 安装puppet官方源

   [root@master ~]# wget http://yum.puppetlabs.com/el/6/products/x86_64/puppetlabs-release-6-7.noarch.rpm

   [root@master ~]# rpm -ivh puppetlabs-release-6-7.noarch.rpm

   [root@master ~]# yum update

二、Master端安装配置

1. 安装 puppet-server

   [root@master ~]# yum -y install puppet-server

2. 添加自动签发证书

   编辑 /etc/puppet/puppet.conf 文件， 在[main]段内加入 autosign = true，server = master.com

   [root@master ~]# vim /etc/puppet/puppet.conf

   [main]
       # The Puppet log directory.
       # The default value is '$vardir/log'.
       logdir = /var/log/puppet
   
       # Where Puppet PID files are kept.
       # The default value is '$vardir/run'.
       rundir = /var/run/puppet
   
       # Where SSL certificates are kept.
       # The default value is '$confdir/ssl'.
       ssldir = $vardir/ssl
       autosign = true
       server = master.com
   

3. 启动Puppetmaster
   

   [root@master ~]# service puppetmaster start

   启动 puppetmaster：                                        [确定]

   [root@master ~]#  netstat -tunlp | grep :8140

   tcp        0      0 0.0.0.0:8140                0.0.0.0:*                   LISTEN      9148/ruby
   

4. 开机启动
   

   [root@master ~]# chkconfig --list |grep puppet
   puppet             0:关闭    1:关闭    2:关闭    3:关闭    4:关闭    5:关闭    6:关闭
   puppetmaster       0:关闭    1:关闭    2:关闭    3:关闭    4:关闭    5:关闭    6:关闭

   [root@master ~]# chkconfig puppetmaster on

   [root@master ~]# chkconfig --list |grep puppet
   puppet             0:关闭    1:关闭    2:关闭    3:关闭    4:关闭    5:关闭    6:关闭
   puppetmaster       0:关闭    1:关闭    2:启用    3:启用    4:启用    5:启用    6:关闭

三、客户端安装配置

1.  puppet 安装

   [root@client1 ~]# yum -y install puppet

2. 为客户端指定puppet服务器,并开启Master的推送功能

   编辑 /etc/puppet/puppet.conf 文件，在[agent]段内加入 listen = true，server = master.com

   [root@client1 ~]# vim /etc/puppet/puppet.conf

   [agent]
       # The file in which puppetd stores a list of the classes
       # associated with the retrieved configuratiion.  Can be loaded in
       # the separate ``puppet`` executable using the ``--loadclasses``
       # option.
       # The default value is '$confdir/classes.txt'.
       classfile = $vardir/classes.txt
   
       # Where puppetd caches the local configuration.  An
       # extension indicating the cache format is added automatically.
       # The default value is '$confdir/localconfig'.
       localconfig = $vardir/localconfig
       listen = true
       server = master.com

   编辑 /etc/puppet/auth.conf 文件， 在 auth / 最下面加入以下语句

   [root@client1 ~]# vim /etc/puppet/auth.conf

   path /run
   method save
   allow master.com

3. 启动client
   

   [root@client1 ~]# service puppet start
   Starting puppet agent:                                     [确定]

   [root@client1 ~]#  netstat -tunlp | grep :8139
   tcp        0      0 0.0.0.0:8139                0.0.0.0:*                   LISTEN      15038/ruby
   

4. 开机启动

   [root@client1 ~]# chkconfig puppet on

   [root@client1 ~]# chkconfig --list |grep puppet

   puppet             0:关闭    1:关闭    2:启用    3:启用    4:启用    5:启用    6:关闭

四、证书申请

1. client需要向服务器端发出请求, 让服务器对客户端进行管理. 这其实是一个证书签发的过程. 第一次运行puppet 客户端的时候会生成一个 SSL 证书并指定发给 Puppet 服务端, 服务器端如果同意管理客户端,就会对这个证书进行签发，可以用这个命令来签发证书，由于我们已经在客户端设置了server地址，因此不需要跟服务端地址。

   [root@client1 ~]# puppet agent --test

   Info: Retrieving pluginfacts
   Info: Retrieving plugin
   Info: Caching catalog for client1.com
   Info: Applying configuration version '1440636623'
   Notice: Finished catalog run in 0.20 seconds

2. 在Master上查看签发的证书列表

   如果有看到证书，则说明客户端与Master通信正常，由于之前配置了自动签发证书，所以客户端连接上来后都已经是签证过了

   [root@master ~]#  puppet cert list --all

   + "client1.com" (SHA256) 41:9C:4C:10:46:AE:79:40:9B:F8:90:AC:84:F7:A1:AA:F7:5E:2F:2D:4F:DC:96:3C:3B:FF:08:CB:2C:62:33:CA
   + "client2.com" (SHA256) 60:6D:C6:5C:4E:FA:3C:00:E0:E2:35:9A:EB:87:F5:28:B8:F7:62:36:63:16:CA:4E:AE:03:05:26:3F:AE:28:AA
   + "master.com"  (SHA256) B7:5C:34:7A:95:85:20:03:32:7F:65:5C:0E:8C:49:4D:30:F4:D6:BA:01:7B:15:13:51:4D:7E:55:25:16:EB:9C (alt names: "DNS:master.com", "DNS:puppet", "DNS:puppet.com"

   + 表示已经获得签名
   - 表示证书被注销
     表示未获得证书

五、 简单测试

1. 我们在/etc/puppet/manifests/下建立文件site.pp,此文件可以将/tmp/andrew.txt的内容和权限都推送过去.

2. Master端

    在clinets端创建 /tmp/test.txt 文件， 内容为 “this is a test document!!”

   [root@master]# cd /etc/puppet/manifests
   

   [root@master manifests]# vim site.pp

   node default{
       file {"/tmp/andrewy.txt":
           content => "this is a test document!!!\n",
           ensure => present,
           owner =>root,
           group => root,
           mode =>644,
       }
   }

3. clients端

   [root@client1 ~]# puppet agent --test --server=master.com
   Notice: Ignoring --listen on onetime run
   Info: Retrieving pluginfacts
   Info: Retrieving plugin
   Info: Caching catalog for client1.com
   Info: Applying configuration version '1440641613'
   Notice: /Stage[main]/Main/Node[default]/File[/tmp/andrewy.txt]/ensure: created
   Notice: Finished catalog run in 0.03 seconds

   通过对notice返回可以确定执行成功，时间为0.03秒。

   在客户端检查文件是否存在

   [root@client1 ~]# cat /tmp/andrewy.txt
   this is a test document!!!

六、客户端自动连接master

      clients如何自动连接master端，如何修改默认连接的时间呢？

      此时间默认认为1800（30分钟），有时候我们需要在工作中更改此时间，为了很快到看效果，我改成10s（秒），在clients编辑/etc/puppet/puppet.conf这个配置文件，在[agent]标签下加入runinterval = 10。

1. [root@client1 ~]# vim /etc/puppet/puppet.conf

   [agent]
       # The file in which puppetd stores a list of the classes
       # associated with the retrieved configuratiion.  Can be loaded in
       # the separate ``puppet`` executable using the ``--loadclasses``
       # option.
       # The default value is '$confdir/classes.txt'.
       classfile = $vardir/classes.txt
   
       # Where puppetd caches the local configuration.  An
       # extension indicating the cache format is added automatically.
       # The default value is '$confdir/localconfig'.
       localconfig = $vardir/localconfig
       listen = true
       server = master.com
       runinterval = 10

   前面已加入listen = true、server = master.com这两个。

2. [root@client1 ~]# tail -f /var/log/messages
   Aug 27 10:56:53 client1 puppet-agent[32370]: Finished catalog run in 0.06 seconds
   Aug 27 10:57:03 client1 puppet-agent[32517]: Finished catalog run in 0.05 seconds
   Aug 27 10:57:13 client1 puppet-agent[32665]: Finished catalog run in 0.06 seconds
   查看日志可以看到每隔10s自动执行。
   

到此puppet在centos 6.5上的安装已经完成，有时间还会写puppet的进阶级的操作，比如：自动安装、运行shell、模块应用等，由于是第一次在博客写东西和个人知识水平有限，如有什么疏漏的地方，请大家及时指教，谢谢！！！