if i install the nginx ingress controller by using

k8s.helm.v2.Chart

, what's the "best" way to grab the ip for the service?

Should be something along these lines: https://github.com/pulumi/examples/blob/8d309331495f0198ca664a6ef1202b2e7930ff27/kubernetes-ts-helm-wordpress/index.ts#L19-L20