Puppet扩展篇2-如何使用虚拟资源解决puppet冲突问题

要使用虚拟资源是需要在资源声明开头加上字符“@”来使资源虚拟化。然后再使用下面两种方法之一来实例化虚拟资源：

  • “飞船”语法<||>
  • realize函数

1. 定义两个用户，puppet和root，并将其虚拟化

1.2 创建虚拟用户puppet、root、xiaonuo

  2. class alluser{
  3.   include alluser::puppet,alluser::root
  4. }
  6. class alluser::puppet{
  7.   @user { 'puppet':
  8.     ensure => present,
  9.     uid    => '52',
  10.     gid    => '52',
  11.     home   => '/var/lib/puppet',
  12.     shell  => '/sbin/nologin',
  13.   }
  14. }
  16. class alluser::root{
  17.   @user { 'root':
  18.     ensure => present,
  19.     uid    => '0',
  20.     gid    => '0',
  21.     home   => '/root',
  22.     shell  => '/bin/bash',
  23.   }
  24. }
  26. class alluser::xiaonuo{
  27.   @user { 'xiaonuo':
  28.     ensure => present,
  29.     uid    => '600',
  30.     gid    => '600',
  31.     home   => '/home/xiaonuo',
  32.     shell  => '/sbin/nologin',
  33.   }
  34. }
  1. [root@linuxmaster1poc testing]# vim manifests/nodes/virtual_group.pp 
  2. class allgroup{
  3.   include allgroup::puppet,allgroup::root
  4. }
  6. class allgroup::puppet{
  7.   @group { 'puppet':
  8.     ensure    => present,
  9.     gid       => '52',
  10.     allowdupe => false,
  11.     members   => 'puppet',
  12.   }
  13. }
  15. class allgroup::root{
  16.   @group { 'root':
  17.     ensure    => present,
  19.     gid       => '0',
  20.     allowdupe => false,
  21.     members   => 'root',
  22.   }
  23. }
  24. class allgroup::xiaonuo{
  25.   @group { 'xiaonuo':
  26.     ensure    => present,
  27.     name      => 'xiaonuo',
  28.     gid       => '600',
  29.     allowdupe => false,
  30.     members   => 'xiaonuo',
  31.   }
  32. }

2. 编写puppet模块，将虚拟资源用户puppet和组puppet实化

2.1 编写pupppet模块

  1. [root@linuxmaster1poc testing]# tree agents/modules/puppet_linux57poc/
  2. agents/modules/puppet_linux57poc/
  3. ├── files
  4. ├── manifests
  5. │   └── init.pp
  6. └── templates
  7.     ├── facts.txt.erb
  8.     └── motd.erb
  10. 3 directories, 3 files

2.3 实例化虚拟资源

2.3.1 在puppet模块中实例化

  1. [root@linuxmaster1poc testing]# vim environment/modules/puppet/manifests/config.pp 
  2. class puppet::config{
  3.   include puppet::params
  4.   include puppet::puppet_config,puppet::namespaceauth_config,puppet::auth_config,puppet::user,puppet::group
  5.   include alluser,allgroup #必须将节点作用域中的类包含进来
  6. }
  8. class puppet::puppet_config{
  9.   file { '/etc/puppet/puppet.conf':
  10.     ensure  => present,
  11.     content => template('puppet/puppet.conf.erb'),
  12.     owner   => 'puppet',
  13.     group   => 'puppet',
  14.     mode    => '0644',
  15.     backup  => main,
  16.     require => Class['puppet::install','puppet::user','puppet::group'],
  17.     notify  => Class['puppet::service'],
  18.   }
  19. }
  22.   file { '/etc/puppet/auth.conf':
  23.     ensure  => present,
  24.     content => template('puppet/auth.conf.erb'),
  25.     owner   => 'puppet',
  26.     group   => 'puppet',
  28.     backup  => main,
  29.     require => Class['puppet::install','puppet::user','puppet::group'],
  30.     notify  => Class['puppet::service'],
  31.   }
  32. }
  34. class puppet::namespaceauth_config{
  35.   file { '/etc/puppet/namespaceauth.conf':
  36.     ensure  => present,
  37.     content => template('puppet/namespaceauth.conf.erb'),
  38.     owner   => 'puppet',
  39.     group   => 'puppet',
  40.     mode    => '0644',
  41.     backup  => main,
  42.     require => Class['puppet::install','puppet::user','puppet::group'],
  43.     notify  => Class['puppet::service'],
  44.   }
  45. }
  47. class puppet::user{ #使用飞船语法实化用户puppet资源
  48. #  realize User['puppet'] 
  49.   User <| title == 'puppet' |>
  50. }
  52. class puppet::group{ #使用realize函数实化组puppet资源
  53.   realize Group['puppet']
  54. #  Group <| title == 'puppet' |>
  55. }

3. 测试

3.2 测试puppet_linux57poc模块

3.2.1 查看当前系统是否有xiaonuo用户和组

  1. [root@linux57poc puppet]# id xiaonuo
  2. id: xiaonuo: No such user
  3. [root@linux57poc puppet]# cat /etc/group | grep xiaonuo
  4. [root@linux57poc puppet]# 
  5. [root@linux57poc puppet]# ll /etc/motd 
  6. -rwxrwxrwx 1 puppet puppet 313 Jan  2 06:17 /etc/motd
  1. [root@linux57poc puppet]# puppet agent -t --environment=testing
  2. info: Retrieving plugin
  3. info: Loading facts in /var/lib/puppet/lib/facter/fact_apply.rb
  4. info: Caching catalog for puppet_linux57poc.dev.shanghaigm.com
  5. info: Applying configuration version '1389555288'
  6. notice: /Stage[main]/Allservice::Lm_sensors_service/Service[lm_sensors]/ensure: ensure changed 'running' to 'stopped'
  7. notice: /Group[xiaonuo]/ensure: created
  8. notice: /Stage[main]/Alluser::Xiaonuo/User[xiaonuo]/ensure: created
  9. ...
  10. info: FileBucket adding {md5}b2090646c444c5ddf1533749743ebd71
  11. info: /Stage[main]/Mcollective::Facter/File[/etc/mcollective/facts.yaml]: Filebucketed /etc/mcollective/facts.yaml to main with sum b2090646c444c5ddf1533749743ebd71
  12. notice: /Stage[main]/Sysctl::Exec/Exec[sysctl -p >/dev/null &]/returns: executed successfully
  13. notice: /Stage[main]/Puppet_linux57poc::Motd_config/File[/etc/motd]/owner: owner changed 'puppet' to 'xiaonuo'
  14. notice: /Stage[main]/Puppet_linux57poc::Motd_config/File[/etc/motd]/group: group changed 'puppet' to 'root'
  15. notice: /Stage[main]/Puppet_linux57poc::Motd_config/File[/etc/motd]/mode: mode changed '0777' to '0440'
  16. notice: Finished catalog run in 4.54 seconds

3.2.3 验证结果是否正确