class - puppet :通过类传递参数

这是我之前关于parameterized classes的问题的后续内容。继续该示例，我希望能够将运行或停止传递到服务中，但是将服务添加到框中时，我不使用“include poodle::service”，而是使用“include poodle” ”，它会执行Poodle需要安装的所有其他内容。

因此，我可以像这样将变量传递给服务类:

# SITE.PP
node 'tweedle.example.com' {
    include basicstuff
    include poodle
}
node 'beetle.example.com' {
    include basicstuff
    class { 'poodle':
        $ensure => 'stopped'
    }
}

## POODLE MODULE, manifests/init.pp
class poodle ( $ensure = 'running' ) {
    class {'poodle::install': }
    class {'poodle::config': }
    class {'poodle::service':
        ensure => $ensure
    }
    Class ['poodle::install'] -> Class ['poodle::config'] ~> Class ['poodle::service']
}

...

class poodle::service ( $ensure ) {
    service {'poodle':
        ensure     => $ensure,
        enable     => true,
        restart    => "/etc/init.d/poodle stop && sleep 5 && /etc/init.d/poodle start",
        subscribe  => File['/opt/poodle/poodle.py'],
    }
}

还是应该将参数直接放在服务类上，并像下面这样显式调用Poodle类和Poodle的服务类:

# SITE.PP
node 'tweedle.example.com' {
    include basicstuff
    include poodle
}
node 'beetle.example.com' {
    include basicstuff
    include poodle
    class { 'poodle::service':
        $ensure => 'stopped'
    }
}

## POODLE MODULE, manifests/init.pp
class poodle {
    class {'poodle::install': }
    class {'poodle::config': }
    class {'poodle::service':
        ensure => $ensure
    }
    Class ['poodle::install'] -> Class ['poodle::config'] ~> Class ['poodle::service']
}

...

class poodle::service ( $ensure = 'running') {
    service {'poodle':
        ensure     => $ensure,
        enable     => true,
        restart    => "/etc/init.d/poodle stop && sleep 5 && /etc/init.d/poodle start",
        subscribe  => File['/opt/poodle/poodle.py'],
    }
}

或者正在将参数添加到服务类中，并且仅包含足够的参数，因为服务类具有依赖项，如下所示:

# SITE.PP
node 'tweedle.example.com' {
    include basicstuff
    include poodle
}
node 'beetle.example.com' {
    include basicstuff
    class { 'poodle::service':
        $ensure => 'stopped'
    }
}

## POODLE MODULE, manifests/init.pp
class poodle {
    class {'poodle::install': }
    class {'poodle::config': }
    class {'poodle::service':
        ensure => $ensure
    }
    Class ['poodle::install'] -> Class ['poodle::config'] ~> Class ['poodle::service']
}

...

class poodle::service ( $ensure = 'running') {
    service {'poodle':
        ensure     => $ensure,
        enable     => true,
        restart    => "/etc/init.d/poodle stop && sleep 5 && /etc/init.d/poodle start",
        subscribe  => File['/opt/poodle/poodle.py'],
    }
}

什么是正确的路线和最佳做法？提前致谢!

最佳答案

通常，您不希望人们必须了解模块的内部结构才能使用它。

我当然不会要求它们同时包含poodle和poodle:service。

模块通常遵循以下两种结构之一:

通过init.pp的单个入口点，用于具有很少/没有参数且没有单独角色的简单服务
(客户端/服务器)或“多个”(例如，数据库服务器可能在其中配置了多个数据库)
通过p)

通过子类和定义的类型的多个入口点，它们分别处理不同的角色和
倍数

根据您的描述，我将参数放在主类中并将其传递给服务子类。