Update workloads.tfvars with accurate IAP instructions (GoogleCloudPl…

…atform#374)

applications/rag/workloads.tfvars

@@ -51,12 +51,12 @@ jupyter_service_account = "jupyter"
 ## Embeddings table name - change this to the TABLE_NAME used in the notebook.
 dataset_embeddings_table_name = "googlemaps_reviews_db"
 
-## IAP config
+## IAP config - if you choose to disable IAP authenticated access for your endpoints, ignore everthing below this line.
 brand = "projects/<prj-number>/brands/<prj-number>"
 
 ## Jupyter IAP Settings
 jupyter_add_auth                 = false # Set to true when using auth with IAP
-jupyter_support_email            = "<email>"
+jupyter_support_email            = "<email>" # Only needed if `jupyter_add_auth = true`
 jupyter_k8s_ingress_name         = "jupyter-ingress"
 jupyter_k8s_managed_cert_name    = "jupyter-managed-cert"
 jupyter_k8s_iap_secret_name      = "jupyter-iap-secret"
@@ -72,7 +72,7 @@ jupyter_members_allowlist = ["allAuthenticatedUsers", "user:<email>"]
 
 ## Frontend IAP Settings
 frontend_add_auth                 = false # Set to true when using auth with IAP
-frontend_support_email            = "<email>"
+frontend_support_email            = "<email>" # Only needed if `frontend_add_auth = true`
 frontend_k8s_ingress_name         = "frontend-ingress"
 frontend_k8s_managed_cert_name    = "frontend-managed-cert"
 frontend_k8s_iap_secret_name      = "frontend-iap-secret"