trond-doesnt-know-terraform.tf

# Lots of other resources are created and all of that stuff works so I'm just skipping the not-so-relevant parts.


resource "aws_route_table" "private" {
    for_each = toset(var.public_subnets)
    vpc_id = aws_vpc.main.id
    route {
        cidr_block = "0.0.0.0/0"
        nat_gateway_id = aws_nat_gateway.natgw[each.key].id #this ressource  exists andd is based on a foreach of the public_subnets variable, I just omitted it from the example here.
    }
    tags = {
        Name = "privateroutes-${split(":", each.value)[0]}"
    }
}

resource "aws_subnet" "privsubnet" {
    for_each = toset(var.private_subnets)
    vpc_id     = aws_vpc.main.id
    cidr_block = split(":", each.value)[1]
    availability_zone = split(":", each.value)[0]
    tags = {
        Name =  "${split(":", each.value)[2]}"
    }
}

# variable contents:
#public_subnets=[
#    "eu-west-1a:10.0.3.0/24:what1",
#    "eu-west-1b:10.0.4.0/24:what2",
#    "eu-west-1b:10.0.5.0/24:what3"
#]
#private_subnets=[
#    "eu-west-1a:10.0.6.0/24:priv1",
#    "eu-west-1b:10.0.8.0/24:priv2",
#    "eu-west-1c:10.0.9.0/24:priv3",
#    "eu-west-1a:10.0.10.0/24:priv4",
#]

# This is where I'm stuck right now. For example:
#    For the private subnet "eu-west-1a:10.0.6.0/24:priv1",
#    we need to grab the id of the route table called "privateroutes-eu-west-1a",
#    and set that as the route_table_id. The "eu-west-1a" substring is accessible by splitting the current loop value: `split(":", each.value)[0]`

#resource "aws_route_table_association" "privateroute_assoc" {
#  for_each = toset(var.private_subnets)
#  subnet_id      = aws_subnet.privsubnet[each.key].id
#  route_table_id = aws_route_table.private["privateroutes-${split(":", each.value)[0]}"].id
#}