puppet簡單基礎及使用puppet安裝httpd服務的配置檔案

1.puppet apply單機基礎：

參考：http://www.zsythink.net/archives/363

目标：使用puppet apply在單機上實作檔案同步，安裝軟體，開關服務，執行shell。

在/etc/puppet/manifests下生成test1.pp檔案，并進行編輯：

#将resolve.erb檔案同步到/etc/resolv.conf
file{'dns1':
    path => '/etc/resolv.conf',
    ensure => file,
    source => '/etc/puppet/manifests/resolve/resolve.erb',
    mode => 0644,
}

#安裝tree軟體
package{'install':
    name => 'tree',
    ensure => 'installed',
}

#開啟ntpd服務
service{"stop":
    name => 'ntpd',
    ensure => 'running',
}

#檢測是否存在/etc/resol.conf檔案，如果有，删除
exec{'del':
    path => '/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/mysql/bin:/root/bin',
    cwd => '/etc',
    command => 'rm -f resol.conf',
    onlyif => 'test -e /etc/resol.conf'
}
           

2.使用puppet安裝httpd服務的配置檔案：

系統為centos6.5，puppet版本3.8.7。server側共有4個配置檔案，其中主配置檔案/etc/puppet/manifests/site.pp相關配置如下：

node 'puppetclient2'{
    include httpd
}
           

/etc/puppet/modules/httpd/manifests下有init.pp  install.pp  service.pp 3個配置檔案。

[[email protected] manifests]# cat init.pp 
class httpd{
    include httpd::install
    include httpd::service
}

[[email protected] manifests]# cat install.pp 
class httpd::install{
    package{'httpd':
        ensure => present,
    }
}

[[email protected] manifests]# cat service.pp 
class httpd::service{
    service {'httpd':
        ensure => running,
        hasstatus => true,
        hasrestart => true,
        enable => true,
        require => Class["httpd::install"],
    }
}

           

在agent上進行驗證：

[[email protected] useless]# puppet agent --test 
Info: Retrieving pluginfacts
Info: Retrieving plugin
Info: Caching catalog for puppetclient2
Info: Applying configuration version '1551171577'
Notice: /Stage[main]/Httpd::Install/Package[httpd]/ensure: created
Notice: /Stage[main]/Httpd::Service/Service[httpd]/ensure: ensure changed 'stopped' to 'running'
Info: /Stage[main]/Httpd::Service/Service[httpd]: Unscheduling refresh on Service[httpd]
Notice: Finished catalog run in 5.84 seconds
           

httpd服務已經啟動了：

[[email protected] useless]# /etc/init.d/httpd status
httpd (pid  5598) is running...
           

網上找到的一段話：

一個子產品目錄下面通常包括三個目錄：files，manifests，templates。manifests 裡面必須要包括一個init.pp的檔案，這是該子產品的初始（入口）檔案，導入一個子產品的時候，會從init.pp開始執行。可以把所有的代碼都寫到init.pp裡面，也可以分成多個pp檔案，init 再去包含其他檔案。files目錄是該子產品的檔案釋出目錄，puppet提供一個檔案分發機制，類似rsync的子產品。templates 目錄包含erb模型檔案，這個和file資源的template屬性有關。