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composition-1 {
infrastructure-module-1 {
data-source-1 => d1
resource-module-1 {
data-source-2 => d2
resource-1 (d1, d2)
resource-2 (d2)
}
resource-module-2 {
data-source-3 => d3
resource-3 (d1, d3)
resource-4 (d3)
}
}
}website = {
index_document = "index.html"
}variable "website" {
type = map(string)
default = {}
}
resource "aws_s3_bucket" "this" {
# omitted...
dynamic "website" {
for_each = length(keys(var.website)) == 0 ? [] : [var.website]
content {
index_document = website.value.index_document
error_document = lookup(website.value, "error_document", null)
}
}
}
map(...){name}aws_subnetsubnetaws_vpcvpcresource "aws_route_table" "public" {
count = 2
vpc_id = "vpc-12345678"
# ... remaining arguments omitted
}
resource "aws_route_table" "private" {
for_each = toset(["one", "two"])
vpc_id = "vpc-12345678"
# ... remaining arguments omitted
}resource "aws_route_table" "public" {
vpc_id = "vpc-12345678"
count = 2
# ... remaining arguments omitted
}resource "aws_nat_gateway" "this" {
count = 2
allocation_id = "..."
subnet_id = "..."
tags = {
Name = "..."
}
depends_on = [aws_internet_gateway.this]
lifecycle {
create_before_destroy = true
}
} resource "aws_nat_gateway" "this" {
count = 2
tags = "..."
depends_on = [aws_internet_gateway.this]
lifecycle {
create_before_destroy = true
}
allocation_id = "..."
subnet_id = "..."
}resource "aws_nat_gateway" "that" { # Best
count = var.create_public_subnets ? 1 : 0
}
resource "aws_nat_gateway" "this" { # Good
count = length(var.public_subnets) > 0 ? 1 : 0
}output "security_group_id" {
description = "The ID of the security group"
value = try(aws_security_group.this[0].id, aws_security_group.name_prefix[0].id, "")
}output "this_security_group_id" {
description = "The ID of the security group"
value = element(concat(coalescelist(aws_security_group.this.*.id, aws_security_group.web.*.id), [""]), 0)
}output "rds_cluster_instance_endpoints" {
description = "A list of all cluster instance endpoints"
value = aws_rds_cluster_instance.this.*.endpoint
}