Replace ansible_date_time.iso8601 with a timestamp from the target system

roles/pfsense_upgrade/tasks/backup_webhook.yml

@@ -1,10 +1,23 @@
+---
+# roles/pfsense_upgrade/tasks/backup_webhook.yml
+# Captures config.xml and sends to webhook before upgrade
+
 - name: Capture current config.xml for backup
   ansible.builtin.raw: |
     cat /conf/config.xml
   register: _config_xml
   when: perform_upgrade | bool
 
-- name: Send config to webhook (if webhook URL provided)
+- name: Get timestamp from target system
+  ansible.builtin.raw: |
+    date -u +"%Y-%m-%dT%H:%M:%SZ"
+  register: _timestamp
+  when: 
+    - perform_upgrade | bool
+    - n8n_webhook_url is defined
+    - n8n_webhook_url | length > 0
+
+- name: Send config to webhook
   uri:
     url: "{{ n8n_webhook_url }}"
     method: POST
@@ -12,7 +25,7 @@
       {
         "client_id": "{{ client_id }}",
         "hostname": "{{ inventory_hostname }}",
-        "timestamp": "{{ ansible_date_time.iso8601 }}",
+        "timestamp": "{{ _timestamp.stdout | trim }}",
         "config_xml": "{{ _config_xml.stdout | b64encode }}"
       }
     body_format: json