Puppet部署：安装puppet server、client

puppet与其他手工操作工具有一个最大的区别就是 puppet的配置具有稳定性,因此你可以多次执行puppet, 一旦你更新了你的配置文件,puppet就会根据配置文件来更改你的机器配置,通常每30分钟检查一次. puppet会让你的系统状态同配置文件所要求的状态保持一致. 比如你配置文件里面要求ssh服务必须开启. 假如不小心ssh服务被关闭了,那么下一次执行puppet的时候,puppet会发现这个异常,然后会开启 ssh 服务. 以使系统状态和配置文件保持一致.puppet就象一个魔术师,会让你的混乱的系统收敛到puppet配置文件所想要的状态。

可以使用puppet管理服务器的整个生命周期,从初始化到退役.不同于传统的例如sun的Jumpstart或者redhat的Kickstart, puppet可以长年让服务器保持最新状态.只要一开始就正确的配置他们,然后再也不用去管他们.通常puppet用户只需要给机器安装好puppet并让他们运行,然后剩余的工作都由puppet来完成。

试验环境

硬件：两台服务器,虚拟服务器或者物理机器都行,ip地址分别是 192.168.10.133 (server)和 192.168.10.207(client) ;下文分别用server和client代替两个服务器.

软件：安装Centos 5X64(server),Ubuntu 12.04(client) 系统

网络：两台机器互相能访问

在server端配置: 1.设置主机名：

[root@server ~]# uname -a
Linux server.puppet.com 2.6.18-238.el5 #1 SMP Thu Jan 13 15:51:15 EST 2011 x86_64 x86_64 x86_64 GNU/Linux
[root@server ~]# hostname
server.puppet.com
[root@server ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 redmine localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
192.168.10.133 server.puppet.com server

2.配置server端的yum源(因为centos默认没有puppet 源,因此先配置puppet的源,下面链接失效可以参考:https://fedoraproject.org/wiki/EPEL/zh-cn.)

[root@server ~]# rpm -Uvh http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm

3.开始安装puppet server

[root@server ~]# yum -y install puppet-server facter ruby ruby-libs ruby-shadow

4.yum安装puppet成功,先启动服务,查看安装成功否

[root@server ~]# service puppetmaster start
Starting puppetmaster: [ OK ]
[root@server ~]# ps -ef | grep puppet
puppet 2937 1 0 11:47 ? 00:00:00 /usr/bin/ruby /usr/sbin/puppetmasterd
root 2943 2751 0 11:47 pts/1 00:00:00 grep puppet

个人喜欢先用

[root@server ~]# puppet master --verbose --no-daemonize
notice: Starting Puppet master version 2.6.17

因为这个可以看到输出.跟后面的测试有关系,调试完毕.建议用守护进程方式启动

现在看到server启动没有问题.现在可以出安装 ubuntu client了

1.设置client的hostname

liming@client:~$ hostname
client.puppet.com

2.设置server hosts(添加如下)

liming@client:~$ sudo vim /etc/hosts
192.168.10.133 server.puppet.com

3.设置ubuntu apt源

liming@client:~$ sudo su -
liming@client:~$ echo -e "deb http://apt.puppetlabs.com/ lucid main\ndeb-src http://apt.puppetlabs.com/ lucid main" >> /etc/apt/sources.list.d/puppet.list
liming@client:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 4BD6EC30
liming@client:~$ sudo apt-get update

4.安装puppet 客户端

sudo apt-get install puppet

5.测试

liming@client:~$ sudo puppet agent --server=server.puppet.com --no-daemonize --verbose --onetime
info: Creating a new SSL key for client.puppet.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 client.puppet.com
info: Certificate Request fingerprint (md5): 54:CC:33:85:ED:4E:97:05:5F:6D:CE:D9:1F:1F:E9:BC
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

服务器端查看等待请求证书连接的客户端

[root@server ~]# puppet cert --list
"client.puppet.com" (54:CC:33:85:ED:4E:97:05:5F:6D:CE:D9:1F:1F:E9:BC)

现在server和client 端都没问题.若想吧client 换成Centos Or RHEL 重复server 2.配置puppet的yum源.直接yum install puppet 即可!

出现的问题：

liming@client:~$ puppetd --server server.puppet.com --test
err: Could not retrieve catalog from remote server: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed. This is often because the time is out of sync on the server or client
warning: Not using cache on failed catalog
err: Could not retrieve catalog; skipping run
err: Could not send report: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed. This is often because the time is out of sync on the server or client

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