2 files changed, 39 insertions, 0 deletions
diff --git a/roles/dns-server-detect/defaults/main.yml b/roles/dns-server-detect/defaults/main.yml
new file mode 100644
index 000000000..58bd861cd
--- /dev/null
+++ b/roles/dns-server-detect/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+
+external_nsupdate_keys: {}
diff --git a/roles/dns-server-detect/tasks/main.yml b/roles/dns-server-detect/tasks/main.yml
new file mode 100644
index 000000000..cd775814f
--- /dev/null
+++ b/roles/dns-server-detect/tasks/main.yml
@@ -0,0 +1,36 @@
+---
+- fail:
+    msg: 'Missing required private DNS server(s)'
+  when:
+    - external_nsupdate_keys['private'] is undefined
+    - hostvars[groups['dns'][0]] is undefined
+
+- fail:
+    msg: 'Missing required public DNS server(s)'
+  when:
+    - external_nsupdate_keys['public'] is undefined
+    - hostvars[groups['dns'][0]] is undefined
+
+- name: "Set the private DNS server to use the external value (if provided)"
+  set_fact:
+    private_dns_server: "{{ external_nsupdate_keys['private']['server'] }}"
+  when:
+    - external_nsupdate_keys['private'] is defined
+
+- name: "Set the private DNS server to use the provisioned value"
+  set_fact:
+    private_dns_server: "{{ hostvars[groups['dns'][0]].private_v4 }}"
+  when:
+    - private_dns_server is undefined
+
+- name: "Set the public DNS server to use the external value (if provided)"
+  set_fact:
+    public_dns_server: "{{ external_nsupdate_keys['public']['server'] }}"
+  when:
+    - external_nsupdate_keys['public'] is defined
+
+- name: "Set the public DNS server to use the provisioned value"
+  set_fact:
+    public_dns_server: "{{ hostvars[groups['dns'][0]].public_v4 }}"
+  when:
+    - public_dns_server is undefined