Azure Front Door流水线执行失败：前端端点映射未找到指定密钥

背景信息 #

• 已部署的App Service名称：azapp-af-advanced-braintreewebhook-callback-web-qc
• 相关配置：

domain_fqdn                = "events.staging.paynow.aon.com"
key_vault_certificate_name = "uat-paynow-aon-com-cert"

• 上述域名与证书已成功应用到预发布环境的App Gateway，当前需要更新预发布环境的Azure Front Door。

错误详情 #

执行流水线时触发Terraform索引错误，具体报错信息如下：

Error: Invalid index
│
│   on ..\..\..\..\..\infra-repo\main.tf line 125, in resource "azurerm_frontdoor_custom_https_configuration" "custom_domain_https_config":
│ 125:   frontend_endpoint_id                          = azurerm_frontdoor.frontdoor.frontend_endpoints["${each.value.custom_endpoint_name}"]  
│     ├────────────────
│     │ azurerm_frontdoor.frontdoor.frontend_endpoints is map of string with 18 elements
│     │ each.value.custom_endpoint_name is "events-staging-paynow-aon-com"
│
│ The given key does not identify an element in this collection value.
╵

当前状态 #

已在locals.tf的frontend_endpoints_list中添加events-staging-paynow-aon-com密钥，理论上映射应包含19个元素，但流水线执行时仍识别为18个元素，导致索引错误。

内容的提问来源于stack exchange，提问作者Aman Kumar