public:it:linux:puppet

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Puppet

facter

Learning Puppet 笔记

Resources and the RAL

  • Resources: Imagine a system’s configuration as a collection of many independent atomic units; call them “resources.”
    • 资源可分类
    • 资源类型描述抽离于它的具体操作步骤
    • Puppet 指定资源的期望状态，而不是直接指定具体操作
    • 以上三点组成 Puppet 的资源抽象层 （RAL）， RAL 包括 types（高级别抽象模型） 和 providers（平台相关实现），这样可以使用平台无关的方式来描述资源得期望状态。
  • 每个资源（Resource ）的描述包括： resource type, one title, a number of attributes, each attribute has a value 
        user { 'dave':
      ensure     => present,
      uid        => '507',
      gid        => 'admin',
      shell      => '/bin/ksh',
      home       => '/home/dave',
      managehome => true,
    }

    This syntax is called a resource declaration

  • Resource Types : puppet_core_types_cheatsheet.pdf, the type references
  • puppet describe : The puppet describe subcommand can list info about the currently installed resource types on a given machine.
  • puppet resource: Puppet includes a command called puppet resource, which can interactively inspect and modify resources on a single system. Usage:
    # puppet resource <TYPE> [<NAME>] [ATTRIBUTE=VALUE ...]

Manifests

  • .pp: Puppet programs are called “manifests,” and they use the .pp file extension.
  • 完整语法链接： lang resources
    • 大括号，冒号，逗号要正确
    • 大小写敏感。 类型（type）和属性（attributes）名必须小写
    • 字符串值的书写: datatypes
    • All types have a special attribute called the namevar, 该属性缺失就默认以 title 替代
  • Before being applied, manifests get compiled into a document called a catalog
  • puppet apply <.pp file >
  • Puppet agent/master
  • public/it/linux/puppet.1424585601.txt.gz
  • 最后更改: 2015/02/22 14:13
  • 由 oakfire