Enable prometheus using istio discovery in version 1.8.x

Greetings,

Currently i’m using GKE with istio installed on top of it using helm charts. I have installed 1.8.3 version.

  1. I’m using istio base to install cluster resource definitions
  2. Using istio discovery to install istiod inside istio-system namespace.

But, i’m not able to enable prometheus which is needed to scrape metrics to federated prometheus cluster.

Please can some one suggest me how can i enable prometheus pod using istio discovery helm charts.

Thanks you.