Remove NAT instance (#4173)

Author: marcoacierno

infrastructure/global/vpc/endpoints.tf

@@ -3,7 +3,6 @@ resource "aws_vpc_endpoint" "s3" {
   service_name      = "com.amazonaws.eu-central-1.s3"
   vpc_endpoint_type = "Gateway"
   route_table_ids = concat(
-    [for route in aws_route_table.private : route.id],
     [for route in aws_route_table.public : route.id]
   )
 }

infrastructure/global/vpc/nat.tf

@@ -10,27 +10,3 @@ resource "aws_subnet" "private" {
     AZ   = each.key
   }
 }
-
-resource "aws_route_table" "private" {
-  for_each = toset(keys(local.private_azs_cidr))
-  vpc_id   = aws_vpc.default.id
-
-  route {
-    cidr_block           = "0.0.0.0/0"
-    network_interface_id = aws_instance.nat_instance.primary_network_interface_id
-  }
-
-  tags = {
-    Name = "private subnet route table ${each.value}"
-  }
-
-  depends_on = [
-    aws_instance.nat_instance
-  ]
-}
-
-resource "aws_route_table_association" "private_subnet_to_private_route" {
-  for_each       = toset(keys(local.private_azs_cidr))
-  route_table_id = aws_route_table.private[each.value].id
-  subnet_id      = aws_subnet.private[each.value].id
-}

infrastructure/global/vpc/nat_instance_user_data.sh

@@ -36,8 +36,6 @@ resource "aws_route_table_association" "public_subnet_to_public_route" {
   subnet_id      = aws_subnet.public[each.value].id
 }
 
-# Internet gateway
-
 resource "aws_internet_gateway" "default" {
   vpc_id = aws_vpc.default.id
 }