I am deploying an App Gateway on Azure using a Bicep template (relevant pieces shown below).

var applicationGatewayId = resourceId('Microsoft.Network/applicationGateways', applicationGatewayName)
resource applicationGateway 'Microsoft.Network/applicationGateways@2021-08-01' = {
  properties: {
    urlPathMaps: [
      {
        properties: {
          defaultBackendAddressPool: {
            id: '${applicationGatewayId}/backendAddressPools/backendpool-test'
          }
      }
    ]
  }
}

My question is about the id of the backendAddressPool in the example. I get a warning when compiling: Warning use-resource-id-functions: If property "id" represents a resource ID, it must use a symbolic resource reference, be a parameter or start with one of these functions: extensionResourceId, guid, if, reference, resourceId, subscription, subscriptionResourceId, tenantResourceId. [https://aka.ms/bicep/linter/use-resource-id-functions].

• I tried using ${applicationGateway.id}/backendAddressPools/backendpool-test, but that results in a cyclic reference error. For other resource types I used resourceId(), but for this example I wouldn't know how to.
• I tried, e.g., resourceId('Microsoft.Network/ApplicationGatewayBackendAddressPool', '${prefix}-backendpool-infocat'), but that seems to result in a different resource type altogether (doesn't compile into the same id, at least).

This question is applicable to other subresources too, such as:

• applicationGateway.urlPathMaps.defaultBackendAddressPool
• applicationGateway.urlPathMaps.pathRules.backendAddressPool
• applicationGateway.urlPathMaps.pathRules.backendHttpSettings
• ...

So how does one refer to these subresources properly, when there's no readily defined resourceType to be used in resourceId()? Can the warnings be avoided?

Thanks in advance!

CodePudding user response：

Try this:

id:resourceId('Microsoft.Network/applicationGateways/backendAddressPools', applicationGatewayName, applicationGatewayBackendAddressPoolName)