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前言:
生产机器很多通常会新建nodes.pp文件和site.pp文件平级,存放于/etc/puppet/manifests/nodes.pp文件,这种方法比较常用.当然也有其他办法直接写入site.pp文件.
nodes.pp文件主机匹配,支持正则表达式和继承.
//:正则匹配
"":精确匹配
inherits:继承
实例:
先正则匹配然后在精确匹配.
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| node /sh-(proxy|web)\d+/ {
case $::hostname {
"sh-proxy2": {
include apache
user {"test1":
ensure => present,
}
}
"sh-web1": {
include nginx::nginxconf
}
}
}
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比如sh-proxy不止sh-proxy2一台,有50台也可以匹配操作:
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| node /sh-(proxy|web)\d+/ {
case $::hostname {
/sh-proxy\d+/: { #正则匹配
include apache
user {"test1":
ensure => present,
}
}
"sh-web1": {
include nginx::nginxconf
}
}
}
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测试agent端更新:
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| [iyunv@sh-proxy2 puppet]# puppet agent -t
Info: Retrieving pluginfacts
Info: Retrieving plugin
Info: Caching catalog for sh-proxy2.localdomain
Info: Applying configuration version '1505706252'
Notice: /Stage[main]/Apache/Package[httpd]/ensure: created
Notice: Finished catalog run in 8.69 seconds
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node节点继承(inherits)
1、新建一个admin模块,做selinux替换关闭.
/modules/admin/manifests/init.pp文件内容:
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| class admin {
exec {"selinux":
command => "sed -i '/^SELINUX=/s/=.*/=disabled/g' /etc/sysconfig/selinux",
path => ["/bin/","/sbin/","/usr/bin/","/usr/sbin/"],
user => root,
group => root,
}
}
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注意:尝试定义类名'base'报错,现象:svn无法提交,但却可以更新,update后获取到master主机ip地址目录等信息,不确实是否和系统内置变量冲突.
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| manifests/nodes.pp文件内容.
node base {
include admin
}
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| node /sh-(proxy|web)\d+/ inherits base {
case $::hostname {
/sh-proxy\d+/: {
include apache
user {"test1":
ensure => present,
}
}
"sh-web1": {
include nginx::nginxconf
}
}
}
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注意:node节点名不能和模块名冲突,尝试定义为node admin,提交无报错,但是agent端无更新无修改无提示,修改为base以后agent端内容更新.
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