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[经验分享] Centos6.3下Puppet安装配置笔记

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发表于 2018-8-3 07:22:14 | 显示全部楼层 |阅读模式
  ----------闲扯---------------
  最近抽空研究了下据说是圈里运维利器的国外开源软件puppet,原本是想搞一个最新版本编译的整合文档,最后在调试过程中各种报错,google下老外的文章,说是最新版本间存在很多不兼容的情况,后来果断放弃,找到了一个能兼容的版本,并测试成功,前后折腾了2天,真够坑的,现在把自己的心得整合成文档,供大家分享。
  ---------惯例,开搞----------
  系统环境:centos6.3
  puppet:   puppet-2.7.13
  facter:   facter-1.6.5
  ruby:     yum源
  注:
  facter用来获取客户端系统信息(如hostname,ip,OS-Version,fqdn等)
  ruby是puppet的开发环境
  puppet server: 192.168.7.196
  puppet client: 192.168.7.197
  (server)为仅服务器端配置
  (client)为仅客户器端配置
  (server,client)为服务器端与客户端配置
  一.配置环境(server,client):
  1.关闭iptables和selinux(server,client)
  # service iptables stop
  # setenforce 0
  # vi /etc/sysconfig/selinux
  ---------------
  SELINUX=disabled
  ---------------
  2.安装ruby开发环境(centos6.3默认更新源)(server,client)
  # yum -y install ruby*
  3.计划同步时间:(server,client)
  每5分钟同步一次时间
  # crontab -e
  -------------
  */5 * * * * /usr/sbin/ntpdate -u asia.pool.ntp.org
  -------------
  # service crond restart
  # chkconfig crond on
  4.修改服务器及客户端HOST及主机名:
  (server,client)
  # vi /etc/hosts
  -------------------
  192.168.7.196    server.example.com    server
  192.168.7.197    client.example.com    client
  -------------------
  (server)
  # vi /etc/sysconfig/network
  ----------------
  HOSTNAME=server.example.com
  ----------------
  (client)
  # vi /etc/sysconfig/network
  ----------------
  HOSTNAME=client.example.com
  ----------------
  二.安装应用软件(server,client)
  (server):
  1.安装facter:
  # wget http://downloads.puppetlabs.com/facter/facter-1.6.5.tar.gz
  # tar zxvf facter-1.6.5.tar.gz
  # cd facter-1.6.5
  # ruby install.rb
  2.安装puppet:
  # wget http://downloads.puppetlabs.com/puppet/puppet-2.6.13.tar.gz
  # tar zxvf puppet-2.6.13.tar.gz
  # cd puppet-2.6.13
  # ruby install.rb
  # cp conf/auth.conf /etc/puppet/
  # cp conf/redhat/fileserver.conf /etc/puppet/
  # cp conf/redhat/puppet.conf /etc/puppet/
  # mkdir -p /etc/puppet/manifests
  设置开机启动脚本:
  # cp conf/redhat/server.init /etc/init.d/puppetmaster
  # chmod +x /etc/init.d/puppetmaster
  # chkconfig --add puppetmaster
  # chkconfig puppetmaster on
  生成pupput用户:
  # puppetmasterd --mkusers
  启动puppetmaster服务(端口:8140):
  # service puppetmaster start
  (client):
  1.安装facter:
  # wget http://downloads.puppetlabs.com/facter/facter-1.6.5.tar.gz
  # tar zxvf facter-1.6.5.tar.gz
  # cd facter-1.6.5
  # ruby install.rb
  2.安装puppet:
  # wget http://downloads.puppetlabs.com/puppet/puppet-2.6.13.tar.gz
  # tar zxvf puppet-2.6.13.tar.gz
  # cd puppet-2.6.13
  # ruby install.rb
  # cp conf/auth.conf /etc/puppet/
  # cp conf/namespaceauth.conf /etc/puppet/
  # cp conf/redhat/puppet.conf /etc/puppet/
  设置开机启动脚本:
  # cp conf/redhat/client.init /etc/init.d/puppet
  # chmod +x /etc/init.d/puppet
  # chkconfig --add puppet
  # chkconfig puppet on
  # vi /etc/puppet/puppet.conf
  在[agent]条目下添加以下内容:
  -------
  Listen = true
  Server = server.example.com
  --------
  # vi /etc/puppet/namespaceauth.conf
  修改成以下内容:
  ---------
  [fileserver]
  allow *
  [puppetmaster]
  allow *
  [puppetrunner]
  allow *
  [puppetbucket]
  allow *
  [puppetreports]
  allow *
  [resource]
  allow *
  ---------
  生成pupput用户:
  # puppetmasterd --mkusers
  启动puppet服务(端口:8140):
  # /etc/init.d/puppet start
  至此安装完毕,现在需要配置客户端与服务器端的认证连接,从而将服务器端的配置的内容分发到各个客户端,实现集中配置管理。
  三.认证并分发:
  
  (client):
  客户端发送请求
  # puppetd --test --server server.example.com
  报错:
  --------------------
  err: Could not retrieve catalog from remote server: SSL_connect returned=1 errno=0
  state=SSLv3 read server certificate B: certificate verify failed
  warning: Not using cache on failed catalog
  err: Could not retrieve catalog; skipping run
  --------------------
  解决方法:
  这可能是换了不同的两台puppetmaster服务器引起的。解决方法,删除现有ssl证书。
  # find /var/lib/puppet -type f -print0 |xargs -0r rm
  重新发送请求:
  # puppetd --test --server server.example.com
  -------------------
  info: Creating a new SSL key for client.example.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.example.com
  info: Certificate Request fingerprint (md5):
  32:E8:CD:32:BF:62:86:64:B3:98:A4:EB:8A:71:D2:99
  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
  -------------------
  发送成功。
  (server):
  服务器端查看是否有请求证书的客户端服务器
  # puppetca --list
  ------------------
  client.example.com (32:E8:CD:32:BF:62:86:64:B3:98:A4:EB:8A:71:D2:99)
  ------------------
  收到客户端认证信息
  服务器端对client.example.com签名
  # puppetca -s client.example.com
  或对所有客户端全部签名
  # puppetca -s -a
  查看验证签名,注意前面的+号,说明已经签名
  # puppetca -a --list
  ---------------------
  + client.example.com (19:6F:4C:84:B1:69:16:3C:A1:38:C2:2E:6F:B6:67:12)
  ---------------------
  md5验证服务器端收到的证书是否正确
  (server):
  # md5sum /var/lib/puppet/ssl/ca/signed/client.example.com.pem
  ---------------------
  1ebfd47775ec8f3e2ae112d75ccba132  /var/lib/puppet/ssl/ca/signed/client.example.com.pem
  ---------------------
  (client):
  # md5sum /var/lib/puppet/ssl/certs/client.example.com.pem
  ---------------------
  1ebfd47775ec8f3e2ae112d75ccba132  /var/lib/puppet/ssl/certs/client.example.com.pem
  ---------------------
  MD5值相同,说明我们的puppetmaster和客户端的puppet已经成功建立通信
  注:出现修改主机名问题引起无法认证,需要重新申请证书,操作可以按照如下两个步骤:
  (server):
  # rm -rf /var/lib/puppet/ssl/ca/signed/*.pem  // "*.pem"为修改过主机名的证书
  (client):
  # rm -rf /var/lib/puppet/ssl/
  配置完毕,开始验证分发效果:
  (server):
  修改server端配置文件:
  # vi /etc/puppet/manifests/site.pp
  -----------------
  node default{
  file { "/tmp/test":
  content=> "this is a test file";
  }
  }
  -----------------
  重启puppetmaster,更新配置文件信息。
  # service puppetmaster restart
  (client):
  重启puppet(可不用重启)
  # service puppet restart
  同步文件:
  # puppetd --server server.example.com  --test
  ------------------
  warning: peer certificate won't be verified in this SSL session
  info: Caching certificate for client.example.com
  info: Caching certificate_revocation_list for ca
  info: Caching catalog for client.example.com
  info: Applying configuration version '1369124449'
  notice: /Stage[main]//Node[default]/File[/tmp/test]/ensure: defined content as '{md5}100b144907af2a4786003758a0a6a563'
  info: Creating state file /var/lib/puppet/state/state.yaml
  notice: Finished catalog run in 0.02 seconds
  ------------------
  查看/tmp/test文件及文件内容
  # cat /tmp/test
  -----------
  this is a test file
  -----------
  -----------大功告成-------------
  puppet的具体功能模块这里就不做过多阐述
  相应文档详见传送门:http://showerlee.blog.51cto.com/2047005/1206540

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