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[DTOSS-13486] Fix logic for front door apex records #319

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Merged
saliceti merged 1 commit into from
Sep 23, 2026
Merged

[DTOSS-13486] Fix logic for front door apex records #319

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4 changes: 3 additions & 1 deletion infrastructure/modules/cdn-frontdoor-endpoint/dns.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,9 @@ resource "azurerm_dns_cname_record" "custom" {
resource "azurerm_dns_txt_record" "challenge" {
for_each = { for k, v in var.custom_domains : k => v if v.tls.certificate_type == "ManagedCertificate" }

name = join(".", compact(["_dnsauth", replace(each.value.host_name, ".${each.value.dns_zone_name}", "")]))
# If the host name is the same as the zone name, then it's the apex domain
# Apex domain requires _dnsauth. Subdomains require _dnsauth.<subdomain>.
name = each.value.host_name == each.value.dns_zone_name ? "_dnsauth" : "_dnsauth.${each.value.host_name}"
zone_name = each.value.dns_zone_name
resource_group_name = each.value.dns_zone_rg_name
ttl = 60
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