added NAT GW resource

terraform/aws/new-natgw/main.tf

@@ -0,0 +1,20 @@
+// Create a Elastic IP for NAT GW
+resource "aws_eip" "demo_gw_eip" {
+  vpc          = true
+  tags = {
+    tool = "terraform"
+  }
+}
+
+// Create a NAT GW in public1 and public2 subnets
+resource "aws_nat_gateway" "ease_prod_vpc_nat_gws" {
+  count         = length(var.ease_prod_vpc_public_subnets)
+  allocation_id = aws_eip.demo_gw_eip.id
+  # feed coreos_subnet public subnet ID
+  subnet_id     = var.coreos_subnet_id
+
+  tags = {
+    tool = "terraform"
+  }
+  depends_on = [aws_eip.demo_gw_eip]
+}

terraform/aws/new-natgw/variables.tf

@@ -0,0 +1,6 @@
+// note: this variable will be fed with coreos_subnet subnet ID which can be found at terraform/aws/new-vpc/main.tf
+variable "coreos_subnet_id" {
+  type = "string"
+  default = ""
+  description = "AWS coreos_vpc subnet ID"
+}