Add support for Multiple NAT gateways

Author: hazim1093

modules/nat/main.tf

@@ -1,19 +1,19 @@
 resource "aws_eip" "nat" {
   vpc = true
 
-  #count = "${length(var.azs)}" # Comment out count to only have 1 NAT
+  count = "${length(var.azs)}" # Comment out count to only have 1 NAT
 
   lifecycle {
     create_before_destroy = true
   }
 }
 
 resource "aws_nat_gateway" "nat" {
+  count = "${length(var.azs)}" # Comment out count to only have 1 NAT
+
   allocation_id = "${element(aws_eip.nat.*.id, count.index)}"
   subnet_id     = "${element(split(",", var.public_subnet_ids), count.index)}"
 
-  #count = "${length(split(",", var.azs))}" # Comment out count to only have 1 NAT
-
   lifecycle {
     create_before_destroy = true
   }