puppet 初識

【puppet初識】

學習目錄  領導說saltstack太慢 機器量一旦上來，saltstack就力不從心，所以要將saltstack轉向puppet。

【安裝背景】

系統centos 6.5

軟件地址:

http://downloads.puppetlabs.com/puppet/

master: 192.168.100.10

agent: 192.168.100.13

因為puppet對ca證書的辦法是很對域名了。所以域名一定要解析并且master端最好不要變。

【安裝步驟】

時鐘同步

ntpdate pool.ntp.org

設置hostname并放入hosts解析

echo "192.168.100.10  master.test.com" >> /etc/hosts
echo "192.168.100.13  agent.test.com" >> /etc/hosts

puppet端master和agent端的安裝:

puppet是基于ruby的，所以首先要安裝ruby語言環境。

yum install ruby -y

安裝facter -->收集系統信息的軟件命令

################# master 和agent 共同的步驟 #############

tar xvf facter-1.6.13.tar.gz 

cd facter-1.6.13

ruby install.rb 

## 檢查facter安裝是否成功

facter 收集系統的信息的命令工具

tar xvf puppet-3.0.0.tar.gz 

cd puppet-3.0.0

ruby install.rb 

創建puppet 用戶否則啟動失敗

useradd  puppet

######################## master 拷貝配置

[root@master puppet-3.0.0]# pwd

/usr/local/src/puppet-3.0.0

[root@master puppet-3.0.0]# cp ext/redhat/server.init /etc/init.d/puppetmaster 

[root@master puppet-3.0.0]# chmod 755 /etc/init.d/puppetmaster 

cp ext/redhat/puppet.conf  /etc/puppet/

######################## agent 拷貝配置

[root@agent puppet-3.0.0]# cp  ext/redhat/client.init  /etc/init.d/puppetclient

[root@agent puppet-3.0.0]# chmod 755 /etc/init.d/puppetclient

##### master啟動

/etc/init.d/puppetmaster start

#### master啟動檢測

[root@master puppet-3.0.0]# ps -ef |grep ruby

puppet   10915     1  1 16:34 ?        00:00:01 /usr/bin/ruby /usr/bin/puppet master

root     11272  6458  0 16:36 pts/0    00:00:00 grep --color=auto ruby

[root@master puppet-3.0.0]# netstat -tulnp |grep ruby

tcp        0      0 0.0.0.0:8140                0.0.0.0:*                   LISTEN      10915/ruby 

##### agent 啟動

[root@agent puppet-3.0.0]# /etc/init.d/puppetclient start

Starting puppet agent:     

#### agent 啟動檢測

[root@agent puppet-3.0.0]# ps -ef |grep ruby

root      5623     1  5 16:40 ?        00:00:02 /usr/bin/ruby /usr/bin/puppet agent

############## agent 請求證書 master簽發證書  

agent request   agent端向maser端發起證書請求 puppet agent --test --server master.test.com

master accept    puppet cert sign  agent.test.com  接收指定的 puppet cert sign --all 接收所有的請求

agent fetch 

過程1

[root@agent puppet-3.0.0]# puppet agent --test --server master.test.com 

Info: Caching certificate for ca

Info: Creating a new SSL certificate request for agent.test.com

Info: Certificate Request fingerprint (SHA256): DB:AC:CB:4E:FC:68:E3:71:B5:45:6E:6C:73:C9:EE:27:11:0F:2D:5A:8F:43:21:53:0D:33:7F:85:87:4B:0E:59

Exiting; no certificate found and waitforcert is disabled

[root@agent puppet-3.0.0]# 

過程2:

master端已經有這個請求了 接受就可以了

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

  "agent.test.com" (SHA256) DB:AC:CB:4E:FC:68:E3:71:B5:45:6E:6C:73:C9:EE:27:11:0F:2D:5A:8F:43:21:53:0D:33:7F:85:87:4B:0E:59

[root@master puppet]# 

接收證書:

[root@master puppet]# puppet cert sign  agent.test.com

Signed certificate request for agent.test.com

Removing file Puppet::SSL::CertificateRequest agent.test.com at '/var/lib/puppet/ssl/ca/requests/agent.test.com.pem'

過程3:

agent端測試

puppet agent --test --server master.test.com

############### 出錯過程 ##########

[root@agent puppet-3.0.0]# puppet  agent --test                  

Error: Could not request certificate: Connection refused - connect(2)

Exiting; failed to retrieve certificate and waitforcert is disabled

我這里的原因是 agent的使用的都是默認配置 沒有知道指定master 解決方法:

puppet agent --test --server master.test.com

排除了網絡問題的命令:　telnet master.test.com 8140

####### 寫一個測試用例 測試 master 和 agnet可以通信了 及 master可以管理agent端了   agent可以同步master端了

master端編寫一個測試pp

[root@master manifests]# cat site.pp

file { "/tmp/temp1.txt":

      content => "Hello World\n"; }

[root@master manifests]# pwd

/etc/puppet/manifests

### agent 進行同步

[root@agent puppet-3.0.0]# puppet agent --test --server master.test.com

Info: Retrieving plugin

Error: /File[/var/lib/puppet/lib]: Could not evaluate: Could not retrieve information from environment production source(s) puppet://master.test.com/plugins

Info: Caching catalog for agent.test.com

Info: Applying configuration version '1480151413'

/Stage[main]//File[/tmp/temp1.txt]/ensure: defined content as '{md5}e59ff97941044f85df5297e1c302d260'

Finished catalog run in 0.04 seconds

[root@agent puppet-3.0.0]# cat /tmp/temp1.txt 

Hello World

[root@agent puppet-3.0.0]# 

上面錯誤的信息原因:

Error: /File[/var/lib/puppet/lib]: Could not evaluate: Could not retrieve information from environment production source(s) puppet://master.test.com/plugins

不影響: 原因未知  

【puppet清楚證書】

master端:

[root@shzr-vctr001 user]# puppet cert --clean shzr-vapp015.a.pa.com

Notice: Revoked certificate with serial 14

Notice: Removing file Puppet::SSL::Certificate shzr-vapp015.a.pa.com at '/var/lib/puppet/ssl/ca/signed/shzr-vapp015.a.pa.com.pem'

Notice: Removing file Puppet::SSL::Certificate shzr-vapp015.a.pa.com at '/var/lib/puppet/ssl/certs/shzr-vapp015.a.pa.com.pem'

client端:

\rm -r  /var/lib/puppet/ssl/