feat(node_exporter): use tailnet only

roles/node_exporter/tasks/main.yml

@@ -1,4 +1,9 @@
 ---
+- name: Node Exporter | AUDIT | Get Tailscale IP
+  ansible.builtin.shell: tailscale ip -4 2>/dev/null
+  register: node_exporter_tailscale_ipv4
+  changed_when: false
+
 - name: Node Exporter | PATCH | Install node-exporter
   become: true
   ansible.builtin.dnf:

roles/node_exporter/templates/etc/node-exporter-web.yml

@@ -1,4 +1,6 @@
 ---
+listen_address: {{ node_exporter_tailscale_ipv4 }}:9090
+
 tls_server_config:
   cert_file: /etc/ssl/node-exporter.crt
   key_file: /etc/ssl/node-exporter.key