azure - 如何在ARM模板中设置变量的值？ Or 在 ARM 模板中使用 Or 条件

Question

我一直在研究 ARM 模板，我想根据用户选择的 skuname 动态为 isAlwayOnEnable 变量分配值。

{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
  "skuName": {
    "type": "string",
    "minLength": 1,
    "allowedValues": [
      "D1","F1","B1","B2","B3","S1","S2","S3","P1","P2","3","P1V2","P2V2","P3V2","I1","I2","I3","Y1"
    ],
    "defaultValue": "F1",
    "metadata": {
      "description": "The pricing tier for the hosting plan."
    }
  }
},
"variables": {
    "isAlwayOnEnable": "[if(equals(parameters('skuName'), or('P1','P2','P3','P1V2','P2V2','P3V2','S1','S2','S3')), 'true', 'false')]"
    },
"resources": []
}

但是在验证 ARM 模板时遇到问题。

{"error":{"code":"InvalidTemplate","message":"Deployment template language expression evaluation failed: 'Unable to parse language expression 'if(equals(parameters('skuName'), or('P1','P2','P3','P1V2','P2V2','P3V2','S1','S2','S3')), true, false)': expected token 'LeftParenthesis' and actual 'Comma'.'. Please see https://aka.ms/arm-template-expressions for usage details.","additionalInfo":[{"type":"TemplateViolation","info":{"lineNumber":0,"linePosition":0,"path":""}}]}}

谁能指出我哪里做错了？

我也尝试使用这个变量，例如

"isAlwayOnEnable": "[or(if(equals(parameters('skuName'),'S1') ,'true','false'), if(equals(parameters('skuName'),'S2') ,'true','false'),if(equals(parameters('skuName'),'S3') ,'true','false'),  if(equals(parameters('skuName'),'P1') ,'true','false'),if(equals(parameters('skuName'),'P2') ,'true','false'),if(equals(parameters('skuName'),'P3') ,'true','false'),if(equals(parameters('skuName'),'P1V2') ,'true','false'),if(equals(parameters('skuName'),'P2V2') ,'true','false'),if(equals(parameters('skuName'),'P3V2') ,'true','false'))]"

然后我得到了以下错误

{"error":{"code":"InvalidTemplate","message":"Deployment template validation failed: 'The template variable 'isAlwayOnEnable' is not valid: The provided arguments for template language function 'or' is not valid: all arguments should be of type 'boolean'. Please see https://aka.ms/arm-template-expressions#or for usage details.. Please see https://aka.ms/arm-template-expressions for usage details.'.","additionalInfo":[{"type":"TemplateViolation","info":{"lineNumber":136,"linePosition":534,"path":"properties.template.variables.isAlwayOnEnable"}}]}}

Answer 1

变量部分-

"variables": {
    "isAlwayOnEnable": "[if(equals(parameters('skuName'), 'P1'), 'true','false')]"
},

当选择 skuName 作为 P1 时，评估结果为 true，否则评估结果为 false。因此，您可以使用“OR”运算符添加更多条件，这样就可以了。

引用 - https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/template-functions-logical#if

[编辑1]

对多个值使用“OR”条件-

"variables": {
    "isAlwayOnEnable": "[or (equals(parameters('skuName'), 'P1'), equals(parameters('skuName'), 'P2'))]"
},

现在我相信您可以根据需要在放置逗号后添加更多 equals(parameters('skuName'), 'VALUE')) 。

我已经测试了下面的一个 ARM 模板，它按预期工作 -

    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "skuName": {
            "defaultValue": "F1",
            "allowedValues": [
                "D1",
                "F1",
                "B1",
                "B2",
                "B3",
                "S1",
                "S2",
                "S3",
                "P1",
                "P2",
                "3",
                "P1V2",
                "P2V2",
                "P3V2",
                "I1",
                "I2",
                "I3",
                "Y1"
            ],
            "minLength": 1,
            "type": "String",
            "metadata": {
                "description": "The pricing tier for the hosting plan."
            }
        }
    },
    "variables": {
        "isAlwayOnEnable": "[or (equals(parameters('skuName'), 'P1'), equals(parameters('skuName'), 'P2'))]"
    },
    "resources": [],
    "outputs": {
        "Result": {
            "type": "bool",
            "value": "[variables('isAlwayOnEnable')]"
        }
    }
}

这符合逻辑。还有-

亲自尝试一下 https://portal.azure.com/#create/Microsoft.Template在将此问题标记为有帮助/无帮助之前。