How to enable diagnostics with bicep for Azure Web PubSub?

Question

The Azure WebPub bicep documentation mentions nothing about how to enable diagnostic settings to stream logs to a log analytics workspace, but the Azure Portal has an interface for it.

https://learn.microsoft.com/en-us/azure/templates/microsoft.signalrservice/2021-10-01/webpubsub?pivots=deployment-language-bicep

I am guessing that I have to create a Microsoft.Insights/diagnosticSettings resource, buy the same thing applies here. No apparent documentation.

How do I enable diagnostics with bicep for Azure Web PubSub?

Answer 1

Thanks for getting me in the right direction @Thomas. Your category names were a bit off and I also needed a workspaceId in the properties. After many attempts I got the category names by simply exporting my manual configuration to ARM and saw that the names should be as below.

resource webPubSubDiagnosticSettings 'Microsoft.Insights/diagnosticSettings@2021-05-01-preview' = {
  name: '${webPubSubName}-DiagnosticSettings' 
  scope: webpubsub
  properties: {
    workspaceId: logAnalyticsWorkspace.id
    logs: [
      {
        category: 'ConnectivityLogs'
        enabled: true
      }
      {
        category: 'MessagingLogs'
        enabled: true
      }
      {
        category: 'HttpRequestLogs'
        enabled: true
      }
    ]
    metrics: [
      {
        enabled: true
        category: 'AllMetrics'
      }
    ]
  }
}