puppet 自定义fact变量
一、puppetmaster配置：1. 增加环境变量，仅用于测试编写的变量是否生效。
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# vi /etc/profile 增加以下内容：
#puppet facter
export FACTERLIB=/etc/puppet/modules/facts/lib/facter/ #自定义变量文件存放路径
# source /etc/profile
2. 自定义变量文件路径在： /etc/puppet/modules/$NAME/lib/facter#$NAME随便定义，可以被其它的模块使用。
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# pwd
/etc/puppet/modules
# tree facts/
facts/
└── lib
└── facter #此目录下为每个rb文件定义一个facter变量
├── lannet.rb
├── load_avg.rb
└── log_num.rb
2 directories, 6 files
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# cd facts/lib/facter/
# cat log_num.rb
Facter.add(:log_num) do #log_num 为自定义变量名
setcode do
%x{/usr/bin/who |wc -l}.chomp
end
end
3. 测试变量
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# facter log_num
3
或者：
# facter | grep log_num
log_num => 3
4. 定义一个测试模块
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# tree test/
test/
├── files
├── manifests
│ └── init.pp
└── templates
└── test.rb
3 directories, 2 files
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# cat manifests/init.pp
class test {
test::pwd
}
class test::pwd{
$log_num= "$log_num" #调用变量
file{"/root/test/test.txt": #puppet agent端会生成test.txt
ensure => present,
content => template('test/test.rb'),
mode => '644',
owner => 'root',
group => 'root',
}
}
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# cat templates/test.rb
log_num: <%= scope.lookupvar('test::pwd::log_num') %>
二、puppet agent端测试
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# puppet agent --test
Info: Retrieving pluginfacts
Info: Retrieving plugin
Info: Loading facts
Info: Caching catalog for 192.168.2.11
Info: Applying configuration version '1429004437'
Notice: /Stage/Test::Pwd/File/ensure: created
Notice: /Stage/Test::Exec/Exec/returns: executed successfully
Notice: Finished catalog run in 1.77 seconds
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# cd /root/test/
# cat test.txt
log_num: 3 #测试成功，log_num成为变量
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# facter -p #可以看到所有服务器端定义的fact变量
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