How to conditional deploy in a for loop

[guimatheus92]

I know we can do conditional deployment like this example below based on this documentation:

param deployZone bool

resource dnsZone 'Microsoft.Network/dnsZones@2023-07-01-preview' = if (deployZone) {
  name: 'myZone'
  location: 'global'
}

But how can I do the same when we have For Loop in a resource? Such as:

@description('Datastore for ADLSv2 Data Lake with Entra Id as authentication method')
resource dataStoresDataLake_EntraId 'Microsoft.MachineLearningServices/workspaces/datastores@2024-10-01' = [ 
  for container in lakeContainerNames: {
    parent: machineLearningWorkspace
    name: '${adlsv2Name}_${container}'
    properties: {
      credentials: {
        credentialsType: 'None'
      }
      subscriptionId: adlsv2SubscriptionId
      resourceGroup: adlsv2ResourceGroup
      datastoreType: 'AzureDataLakeGen2'
      accountName: adlsv2Name
      filesystem: container
      endpoint: environment().suffixes.storage
      protocol: 'https'
      serviceDataAccessAuthIdentity: 'WorkspaceSystemAssignedIdentity'
    }
  }
]

If I do this resource dataStoresDataLake_EntraId 'Microsoft.MachineLearningServices/workspaces/datastores@2024-10-01' = if (isToUseServicePrincipal) [ it throws me the BCP018 error, saying there should be {.

[jeskew]

The condition needs to be inside the loop. Conditions apply to each iteration of the loop, not the loop as a whole. There are some examples you can follow on https://learn.microsoft.com/en-us/azure/azure-resource-manager/bicep/loops#loop-with-condition