Refactor A/AAAA blank content to dynamic Dynu semantics

examples/live_safe_dns_record/README.md

@@ -9,8 +9,8 @@ Using a single suffix (`test_suffix`), this example creates five DNS record scen
 1. `A` record with IPv4 content (`codex-a-<suffix>.<root_domain>`)
 2. `AAAA` record with IPv6 content (`codex-aaaa-<suffix>.<root_domain>`)
 3. `CNAME` record (`codex-cname-<suffix>.<root_domain>`)
-4. **Blank `A` record** with no content/IP (`codex-blank-a-<suffix>.<root_domain>`)
-5. **Blank `AAAA` record** with no content/IP (`codex-blank-aaaa-<suffix>.<root_domain>`)
+4. **Dynamic `A` record** with omitted content (`codex-dynamic-a-<suffix>.<root_domain>`)
+5. **Dynamic `AAAA` record** with omitted content (`codex-dynamic-aaaa-<suffix>.<root_domain>`)
 
 > [!WARNING]
 > Do not use a suffix that overlaps important existing hostnames. This example is intended only for disposable test records that you can safely destroy.
@@ -52,5 +52,15 @@ terraform destroy
   - `dynu_dns_record.a_ipv4`
   - `dynu_dns_record.aaaa_ipv6`
   - `dynu_dns_record.cname`
-  - `dynu_dns_record.blank_a`
-  - `dynu_dns_record.blank_aaaa`
+  - `dynu_dns_record.dynamic_a`
+  - `dynu_dns_record.dynamic_aaaa`
+
+Verification commands:
+
+```bash
+dig A codex-dynamic-a-<suffix>.<root_domain>
+dig AAAA codex-dynamic-aaaa-<suffix>.<root_domain>
+dig CNAME codex-cname-<suffix>.<root_domain>
+```
+
+`dig <hostname>` defaults to an `A` lookup, which can be misleading for AAAA-only checks.

examples/live_safe_dns_record/main.tf

@@ -9,8 +9,8 @@ locals {
   hostname_a_ipv4    = "codex-a-${var.test_suffix}.${var.dynu_root_domain}"
   hostname_aaaa_ipv6 = "codex-aaaa-${var.test_suffix}.${var.dynu_root_domain}"
   hostname_cname     = "codex-cname-${var.test_suffix}.${var.dynu_root_domain}"
-  hostname_blank_a   = "codex-blank-a-${var.test_suffix}.${var.dynu_root_domain}"
-  hostname_blank_aaaa = "codex-blank-aaaa-${var.test_suffix}.${var.dynu_root_domain}"
+  hostname_dynamic_a    = "codex-dynamic-a-${var.test_suffix}.${var.dynu_root_domain}"
+  hostname_dynamic_aaaa = "codex-dynamic-aaaa-${var.test_suffix}.${var.dynu_root_domain}"
 }
 
 resource "dynu_dns_record" "a_ipv4" {
@@ -37,17 +37,17 @@ resource "dynu_dns_record" "cname" {
   state       = true
 }
 
-# Deliberate blank A record scenario: A type with no content/IP value.
-resource "dynu_dns_record" "blank_a" {
-  hostname    = local.hostname_blank_a
+# Deliberate dynamic A record scenario: content intentionally omitted for Dynu dynamic IPv4 behavior.
+resource "dynu_dns_record" "dynamic_a" {
+  hostname    = local.hostname_dynamic_a
   record_type = "A"
   ttl         = var.test_ttl
   state       = true
 }
 
-# Deliberate blank AAAA record scenario: AAAA type with no content/IP value.
-resource "dynu_dns_record" "blank_aaaa" {
-  hostname    = local.hostname_blank_aaaa
+# Deliberate dynamic AAAA record scenario: content intentionally omitted for Dynu dynamic IPv6 behavior.
+resource "dynu_dns_record" "dynamic_aaaa" {
+  hostname    = local.hostname_dynamic_aaaa
   record_type = "AAAA"
   ttl         = var.test_ttl
   state       = true

examples/live_safe_dns_record/outputs.tf

@@ -4,8 +4,8 @@ output "record_hostnames" {
     a_ipv4     = dynu_dns_record.a_ipv4.hostname
     aaaa_ipv6  = dynu_dns_record.aaaa_ipv6.hostname
     cname      = dynu_dns_record.cname.hostname
-    blank_a    = dynu_dns_record.blank_a.hostname
-    blank_aaaa = dynu_dns_record.blank_aaaa.hostname
+    dynamic_a    = dynu_dns_record.dynamic_a.hostname
+    dynamic_aaaa = dynu_dns_record.dynamic_aaaa.hostname
   }
 }
 
@@ -15,13 +15,13 @@ output "record_ids" {
     a_ipv4     = dynu_dns_record.a_ipv4.id
     aaaa_ipv6  = dynu_dns_record.aaaa_ipv6.id
     cname      = dynu_dns_record.cname.id
-    blank_a    = dynu_dns_record.blank_a.id
-    blank_aaaa = dynu_dns_record.blank_aaaa.id
+    dynamic_a    = dynu_dns_record.dynamic_a.id
+    dynamic_aaaa = dynu_dns_record.dynamic_aaaa.id
   }
 }
 
 output "record_values" {
-  description = "Record type/content summary for each scenario; blank records intentionally omit content."
+  description = "Record type/content summary for each scenario; dynamic A/AAAA intentionally omit content."
   value = {
     a_ipv4 = {
       type    = dynu_dns_record.a_ipv4.record_type
@@ -35,13 +35,13 @@ output "record_values" {
       type    = dynu_dns_record.cname.record_type
       content = dynu_dns_record.cname.content
     }
-    blank_a = {
-      type    = dynu_dns_record.blank_a.record_type
-      content = dynu_dns_record.blank_a.content
+    dynamic_a = {
+      type    = dynu_dns_record.dynamic_a.record_type
+      content = dynu_dns_record.dynamic_a.content
     }
-    blank_aaaa = {
-      type    = dynu_dns_record.blank_aaaa.record_type
-      content = dynu_dns_record.blank_aaaa.content
+    dynamic_aaaa = {
+      type    = dynu_dns_record.dynamic_aaaa.record_type
+      content = dynu_dns_record.dynamic_aaaa.content
     }
   }
 }