Fix issues 2,3: move NextDNS profile ID to variable, upgrade to ed25519 key

- inventory.yml: replace id_rsa with id_ed25519, add nextdns_profile_id host var (closes #2, #3)
- config-nextdns.yml: reference nextdns_profile_id variable, add become: false

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -1,10 +1,10 @@
 # Unifi-NextDNS: Automated with Ansible
 
-This repo servers to install/reinstall NextDNS CLI on the UDMP
+This repo serves to install/reinstall NextDNS CLI on UnifiOS.
 
 ### Pre Requisites
 
-SSH key based authentication must be setup to the UDM.
+SSH key based authentication must be setup to the Unifi device.
 
 ### To Use These Playbooks
 
@@ -17,7 +17,20 @@ Simply clone this repository and follow the readme below.
 ├── inventory.yml
 └── playbooks
     ├── config-nextdns.yml
-
 ``````
 
+## Introduction
 
+This repo has been built to streamline installing or reinstalling NextDNS CLI after Unifi OS upgrades.
+
+To get started, clone the github repo that goes along with this post:
+
+`git clone https://madereddy.com/git/jeet/Unifi-NextDNS.git`
+
+`cd Unifi-NextDNS`
+
+## Usage
+
+To install/reinstall NextDNS CLI you will use the config-nextdns.yml playbook.
+
+`ansible-playbook playbooks/config-nextdns.yml`

inventory.yml

@@ -5,4 +5,5 @@ all:
         UDMP:
           ansible_host: 192.168.1.1
           ansible_user: root
-          ansible_ssh_private_key_file: ~/.ssh/id_rsa
+          ansible_ssh_private_key_file: ~/.ssh/id_ed25519
+          nextdns_profile_id: "e3448e"

playbooks/config-nextdns.yml

@@ -1,21 +1,17 @@
----
 - name: Install and Configure NextDNS CLI
   hosts: UDM
+  become: false
   gather_facts: yes
 
   tasks:
-    - name: Download and install NextDNS CLI
-      ansible.builtin.expect:
-       command: sh -c 'sh -c "$(curl -sL https://nextdns.io/install)"'
-        responses:
-          Question:
-            - i
-            - e3448e
-            - Y
-            - Y
-            - Y
+    - name: Check if NextDNS is installed
+      ansible.builtin.shell: apt list --installed | grep nextdns
+      register: nextdns_status
+      ignore_errors: True
+      check_mode: False
+      changed_when: False
 
-    - name: Start NextDNS CLI
-      ansible.builtin.command:
-        cmd: nextdns start
-      ignore_errors: yes
+    - name: Download and Install NextDNS CLI
+      ansible.builtin.shell:
+        cmd: "printf 'i\n{{ nextdns_profile_id }}\nY\nY\nY' | sh -c 'sh -c \"$(curl -sL https://nextdns.io/install)\"'"
+      when: nextdns_status.stdout == ""