Refactor DNS-config to make it easier to maintain

This commit is contained in:
2025-03-04 23:15:42 +01:00
parent 3a09b0f44e
commit 817f75bb49
5 changed files with 62 additions and 53 deletions

97
dns.tf
View File

@@ -1,79 +1,88 @@
locals {
// gmail had a different dns-setting in the past,
// but they claim it's still totally valid for old installations
// they even guarantee to keep it valid in future
// see: https://support.google.com/a/answer/174125?hl=en#zippy=%2Cgoogle-workspace-legacy-version-before
dns_gmail_until_april_2023 = [
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "MX", value = "1 aspmx.l.google.com." },
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "MX", value = "5 alt1.aspmx.l.google.com." },
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "MX", value = "5 alt2.aspmx.l.google.com." },
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "MX", value = "10 alt3.aspmx.l.google.com." },
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "MX", value = "10 alt1.aspmx.l.google.com." },
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "TXT", value = "v=spf1 include:_spf.google.com a mx ~all" },
]
dns_gmail_starting_april_2023 = [
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "MX", value = "1 smtp.google.com." },
{ name = "@", ttl = var.gmail_dns_default_ttl, type = "TXT", value = "v=spf1 include:_spf.google.com a mx ~all" },
]
dns_website_default = [
{ name = "@", ttl = 900, type = "A", value = "62.138.6.205" },
{ name = "*", ttl = 900, type = "A", value = "62.138.6.205" },
]
}
module "dns_goperte_de" {
source = "./dns"
zone = "goperte.de"
records = local.dns_website_default
zone_ttl = 900
records = [
{ name = "@", type = "A", value = "62.138.6.205" },
{ name = "*", type = "A", value = "62.138.6.205" },
]
}
module "dns_nehrke_info" {
source = "./dns"
zone = "nehrke.info"
records = concat(
local.dns_website_default,
[
{ name = "_dmarc", ttl = var.gmail_dns_default_ttl, type = "TXT", value = "v=DMARC1; p=none;" },
{ name = "google._domainkey", ttl = var.gmail_dns_default_ttl, type = "TXT", value = var.google_dkim["nehrke.info"] }
],
local.dns_gmail_until_april_2023,
)
zone_ttl = 3600
records = [
{ name = "@", ttl = 900, type = "A", value = "62.138.6.205" },
{ name = "*", ttl = 900, type = "A", value = "62.138.6.205" },
# TODO: update smtp-config, see https://support.google.com/a/answer/174125?hl=en#zippy=%2Cgoogle-workspace-legacy-version-before
{ name = "@", type = "MX", value = "1 aspmx.l.google.com." },
{ name = "@", type = "MX", value = "5 alt1.aspmx.l.google.com." },
{ name = "@", type = "MX", value = "5 alt2.aspmx.l.google.com." },
{ name = "@", type = "MX", value = "10 alt3.aspmx.l.google.com." },
{ name = "@", type = "MX", value = "10 alt1.aspmx.l.google.com." },
{ name = "@", type = "TXT", value = "v=spf1 include:_spf.google.com a mx ~all" },
{ name = "_dmarc", type = "TXT", value = "v=DMARC1; p=none;" },
{ name = "google._domainkey", type = "TXT", value = var.nehrke_info_dkim },
]
}
module "dns_sozpaedil_net" {
source = "./dns"
zone = "sozpaedil.net"
records = concat(
local.dns_website_default,
[
{ name = "_dmarc", ttl = var.gmail_dns_default_ttl, type = "TXT", value = "v=DMARC1; p=none;" },
{ name = "google._domainkey", ttl = var.gmail_dns_default_ttl, type = "TXT", value = var.google_dkim["sozpaedil.net"] }
],
local.dns_gmail_until_april_2023,
)
zone_ttl = 3600
records = [
{ name = "@", ttl = 900, type = "A", value = "62.138.6.205" },
{ name = "*", ttl = 900, type = "A", value = "62.138.6.205" },
# TODO: update smtp-config, see https://support.google.com/a/answer/174125?hl=en#zippy=%2Cgoogle-workspace-legacy-version-before
{ name = "@", type = "MX", value = "1 aspmx.l.google.com." },
{ name = "@", type = "MX", value = "5 alt1.aspmx.l.google.com." },
{ name = "@", type = "MX", value = "5 alt2.aspmx.l.google.com." },
{ name = "@", type = "MX", value = "10 alt3.aspmx.l.google.com." },
{ name = "@", type = "MX", value = "10 alt1.aspmx.l.google.com." },
{ name = "@", type = "TXT", value = "v=spf1 include:_spf.google.com a mx ~all" },
{ name = "_dmarc", type = "TXT", value = "v=DMARC1; p=none;" },
{ name = "google._domainkey", type = "TXT", value = var.sozpaedil_net_dkim },
]
}
module "dns_tovot_de" {
source = "./dns"
zone = "tovot.de"
records = local.dns_website_default
zone_ttl = 900
records = [
{ name = "@", type = "A", value = "62.138.6.205" },
{ name = "*", type = "A", value = "62.138.6.205" },
]
}
module "dns_tovot_net" {
source = "./dns"
zone = "tovot.net"
records = local.dns_website_default
zone_ttl = 900
records = [
{ name = "@", type = "A", value = "62.138.6.205" },
{ name = "*", type = "A", value = "62.138.6.205" },
]
}
module "dns_tovot_org" {
source = "./dns"
zone = "tovot.org"
records = local.dns_website_default
zone_ttl = 900
records = [
{ name = "@", type = "A", value = "62.138.6.205" },
{ name = "*", type = "A", value = "62.138.6.205" },
]
}
module "dns_xn--alleingnger-r8a_de" {
source = "./dns"
zone = "xn--alleingnger-r8a.de"
records = local.dns_website_default
zone_ttl = 900
records = [
{ name = "@", type = "A", value = "62.138.6.205" },
{ name = "*", type = "A", value = "62.138.6.205" },
]
}

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@@ -4,11 +4,11 @@ resource "hetznerdns_zone" "this" {
}
locals {
records = {
records = nonsensitive({
for record in var.records : "${record.type}#${record.name}#${md5(record.value)}" => {
for key, value in record : key => value
}
}
})
}
resource "hetznerdns_record" "this" {

View File

@@ -12,7 +12,7 @@ variable "records" {
name = string
value = string
type = string
ttl = optional(number, 3600)
ttl = optional(number, null)
}))
default = []
}

View File

@@ -2,12 +2,12 @@ variable "hetzner_apitoken" {
type = string
}
variable "google_dkim" {
type = map(string)
variable "nehrke_info_dkim" {
type = string
sensitive = true
}
variable "gmail_dns_default_ttl" {
type = number
default = 3600
variable "sozpaedil_net_dkim" {
type = string
sensitive = true
}