GregoryDosh
daf26312d1
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49 lines
1.5 KiB
HCL
49 lines
1.5 KiB
HCL
# git.auengun.net/homelab/opentofu-common
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# Copyright (C) 2024 GregoryDosh
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# SPDX-FileCopyrightText: 2024 GregoryDosh
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variable "dns_split_horizon" {
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type = bool
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default = false
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nullable = false
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description = "If true, creates a DNS A record at the apex for a split-horizon networking setup."
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}
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locals {
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reverse_lookup_zone = format("%s.%s", join(".", reverse(slice(split(".", var.internal_ipv4), 0, 3))), "in-addr.arpa.")
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}
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# DNS A Records
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# https://registry.terraform.io/providers/hashicorp/dns/latest/docs/data-sources/a_record_set
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resource "dns_a_record_set" "apex" {
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zone = var.fqdn_apex
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name = var.hostname
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addresses = [
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var.internal_ipv4
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]
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count = var.dns_split_horizon == true ? 1 : 0
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}
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# DNS A Records
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# https://registry.terraform.io/providers/hashicorp/dns/latest/docs/data-sources/a_record_set
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resource "dns_a_record_set" "subdomain" {
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zone = var.fqdn_subdomain
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name = var.hostname
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addresses = [
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var.internal_ipv4
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]
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}
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# DNS PTR Records
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# https://registry.terraform.io/providers/hashicorp/dns/latest/docs/resources/ptr_record
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# This is so that I can do `nslookup <IP>` and remember which
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# host is tied to which IP address. Also for logs/lookups elsewhere.
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resource "dns_ptr_record" "reverse_ip_lookup" {
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zone = local.reverse_lookup_zone
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name = split(".", var.internal_ipv4)[3]
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ptr = "${var.hostname}.${var.fqdn_subdomain}"
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depends_on = [ dns_a_record_set.subdomain ]
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}
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