Question

我正在尝试从hiera（）切换到lookup（），但是它不起作用。我以前有以下代码行：

if (hiera("ntp::enabled",0) == 1 ){

它正常工作。

简单地将hiera替换为查找后：

if (lookup("ntp::enabled",0) == 1 ){

我遇到了一个大错误：

    Error: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Evaluation Error: Error while evaluating a Function Call, 'lookup' expects one of:
  (NameType = Variant[String, Array[String]] name, ValueType = Type value_type?, MergeType = Variant[String[1], Hash[String, Scalar]] merge?)
    rejected: parameter 'value_type' expects a ValueType = Type value, got Integer
  (NameType = Variant[String, Array[String]] name, Optional[ValueType] value_type, Optional[MergeType] merge, DefaultValueType = Any default_value)
    rejected: expects 4 arguments, got 2
  (NameType = Variant[String, Array[String]] name, ValueType = Type value_type?, MergeType = Variant[String[1], Hash[String, Scalar]] merge?)
    rejected: parameter 'value_type' expects a ValueType = Type value, got Integer
  (OptionsWithName = Struct[{'name' => NameType = Variant[String, Array[String]], 'value_type' => Optional[ValueType = Type], 'default_value' => DefaultValueType = Any, 'override' => Optional[Hash[String, Any]], 'default_values_hash' => Optional[Hash[String, Any]], 'merge' => Optional[MergeType = Variant[String[1], Hash[String, Scalar]]]}] options_hash, BlockType = Callable[NameType = Variant[String, Array[String]]] block?)
    rejected: expects 1 argument, got 2
  (Variant[String, Array[String]] name, OptionsWithoutName = Struct[{'value_type' => Optional[ValueType = Type], 'default_value' => DefaultValueType = Any, 'override' => Optional[Hash[String, Any]], 'default_values_hash' => Optional[Hash[String, Any]], 'merge' => Optional[MergeType = Variant[String[1], Hash[String, Scalar]]]}] options_hash, BlockType = Callable[NameType = Variant[String, Array[String]]] block?)
    rejected: parameter 'options_hash' expects an OptionsWithoutName = Struct[{'value_type' => Optional[ValueType = Type], 'default_value' => DefaultValueType = Any, 'override' => Optional[Hash[String, Any]], 'default_values_hash' => Optional[Hash[String, Any]], 'merge' => Optional[MergeType = Variant[String[1], Hash[String, Scalar]]]}] value, got Integer (file: /etc/puppetlabs/code/environments/sandbox/modules/ntp_mycompany/manifests/init.pp, line: 38, column: 5) on node mybox.mycompany.com

可能我错过了一些简单的东西，但我认为可以简单地用较新的lookup（）调用替换不推荐使用的hiera（）调用。

Answer 1

我不是木偶专家，但是看着the documentation for lookup似乎需要的参数集与hiera()调用不同：

lookup( <NAME>, [<VALUE TYPE>], [<MERGE BEHAVIOR>], [<DEFAULT VALUE>] )

如果要使用位置选项提供默认值，则还需要填写<VALUE TYPE>和<MERGE BEHAVIOR>的值。看起来，替代方法是提供参数的哈希值而不是列表。如果您继续阅读这些文档，则会看到另一种调用函数的方法：

lookup( [<NAME>], <OPTIONS HASH> )

该机制的一个例子可能是like this：

lookup({"name" => "some::thing", "default_value" => "default"})

人偶模块代码中人偶hiera（）和lookup（）之间的区别

1 个答案: