title: Unable to get Istio Gateway Logs in stackdriver
body: <p>I have deployed Istio on private GKE with WLI enabled. Istio is being installed with <code>Istioctl </code>  and <code>istio-operator</code>. I want to see if my outbound requests are stuck anywhere and I am unable to see so as I am getting the following error:</p>
  <p><code>CreateTimeSeries request failed (1 RPCs, 16 views, 20 timeseries): PERMISSION_DENIED: Permission monitoring.timeSeries.create denied (or the resource may not exist)</code>. I could see the serviceaccount attached to the gateway is <strong>istio-egressgateway-service-account</strong> which is not explicitly created by me. I think this is created by <strong>ISTIO</strong> . So I would like like to understand how can I fix this. I am a bit worried to attach this service account to GCP IAM service Account as it was managed by Istio and I don’t want to disturb that.</p>
  <p>Is it because of Work Load identity(WLI) or anything else? And How can I fix this. Any ideas and help would be very much appreciated.
  GKE Version: 1.17.9-gke.1504
  Istio Version 1.7.x</p>