fix: comply with API

Author: azahi

google.tf

@@ -4,10 +4,15 @@ resource "google_compute_global_address" "gateway" {
 
 resource "google_certificate_manager_certificate" "gateway" {
   for_each = tomap({
+    # Key change is required by Terraform best practices.
     for v in var.gateway_certificates : replace(replace(v.domain, "-", "_"), ".", "_") => v
   })
 
-  name = each.value.domain
+  # Name change is required by the API specification.
+  name = replace(replace(each.value.domain, "_", "-"), ".", "-")
+  labels = {
+    domain = each.value.domain
+  }
   self_managed {
     pem_certificate = each.value.certificate
     pem_private_key = each.value.key
@@ -23,6 +28,6 @@ resource "google_certificate_manager_certificate_map_entry" "gateway" {
 
   name         = each.value.name
   map          = google_certificate_manager_certificate_map.gateway.name
-  certificates = [google_certificate_manager_certificate.gateway[each.key].id]
-  hostname     = each.value.name
+  certificates = each.value.name.id
+  hostname     = each.value.labels.domain
 }