从Azure DevOps用ARM模板部署存储账户Azure Alerts时遇参数错误

错误详情 #

检测到文件'/home/vsts/work/1/s/Alerts_parameters.json'的编码为'utf-8'
覆盖''参数时出错，原因是'TypeError: Cannot read property 'type' of undefined'，请确保其符合JavaScript对象表示法（JSON）规范
##[error]其中一个部署参数存在空键。
##[error]其中一个部署参数存在空键。

用户管道配置 #

variables:
- name: subscriptionId
  value: 'XXXX'
- name: azureResourceManagerConnection
  value: 'Visual Studio Professional Subscription(XXXX)'
- name: resourceGroupName
  value: 'AB-RG-PP-TEST'
- name: storageAccounts_externalid
  value: '/subscriptions/$(subscriptionId)/resourceGroups/$(resourceGroupName)/providers/Microsoft.Storage/storageAccounts/st${{ lower(parameters.Project) }}${{ lower(parameters.ENV) }}'
- name: actiongroups_application_insights_smart_detection_externalid
  value: '/subscriptions/$(subscriptionId)/resourceGroups/$(resourceGroupName)/providers/microsoft.insights/actiongroups/application insights smart detection'

- task: AzureResourceManagerTemplateDeployment@3
  name: 'Alert_Deployment'
  inputs:
    deploymentScope: 'Resource Group'
    azureResourceManagerConnection: $(azureResourceManagerConnection)
    subscriptionId: $(subscriptionId)
    action: 'Create Or Update Resource Group'
    resourceGroupName: '$(resourceGroupName)'
    location: 'North Europe'
    templateLocation: 'Linked artifact'
    csmFile: 'Alerts.json'
    csmParametersFile: 'Alerts_parameters.json'
    deploymentMode: 'Incremental'
    overrideParameters: -storageAccounts_externalid ${{ variables.storageAccounts_externalid }} -actiongroups_application_insights_smart_detection_externalid  ${{ variables.actiongroups_application_insights_smart_detection_externalid }} -metricAlerts_AZURE_INFRASTRUCTURE_Isssues_name AZURE INFRASTRUCTURE Isssues

问题原因与解决步骤 #

1. 带空格的参数值未加引号（核心问题） #

在overrideParameters的最后一项中，参数值AZURE INFRASTRUCTURE Isssues包含空格，未用引号包裹时，Azure DevOps会将空格后的内容识别为新参数，导致解析出空键或无效参数。

修复方法：给带空格的参数值添加双引号：

overrideParameters: -storageAccounts_externalid ${{ variables.storageAccounts_externalid }} -actiongroups_application_insights_smart_detection_externalid  ${{ variables.actiongroups_application_insights_smart_detection_externalid }} -metricAlerts_AZURE_INFRASTRUCTURE_Isssues_name "AZURE INFRASTRUCTURE Isssues"

2. 检查参数文件的JSON格式 #

打开Alerts_parameters.json，确保所有参数键名合法，不存在空字符串作为键的情况（比如"": "some-value"），同时验证JSON格式是否完整，无语法错误。

3. 验证变量引用有效性 #

确认管道中已正确定义parameters.Project和parameters.ENV参数，避免storageAccounts_externalid变量生成无效的存储账户ID，导致参数解析异常。

内容的提问来源于stack exchange，提问作者anuruddhas