fix: proxmox_upgrade preflight delegate_to and run_once

roles/proxmox_upgrade/tasks/preflight.yml

@@ -2,14 +2,15 @@
 # =============================================================================
 # proxmox_upgrade — preflight.yml
 # Check cluster health before starting any upgrade work
-# Runs delegate_to: first node in upgrade_order
+# All tasks delegate_to: localhost — uses API only
 # =============================================================================
 
-- name: Preflight | Check all cluster nodes are online
+- name: Preflight | Check quorum via pvecm
   ansible.builtin.shell: |
-    pvecm status 2>/dev/null | grep -E "^Nodes|Quorate"
-  register: pvecm_status
+    pvecm status 2>/dev/null | grep -i "quorate" | grep -i "yes"
+  register: quorum_check
   changed_when: false
+  failed_when: quorum_check.rc != 0
 
 - name: Preflight | Get cluster node status via API
   ansible.builtin.uri:
@@ -20,6 +21,7 @@
     validate_certs: false
   register: cluster_nodes
   delegate_to: localhost
+  run_once: true
 
 - name: Preflight | Check all nodes are online
   ansible.builtin.fail:
@@ -29,24 +31,17 @@
   loop: "{{ cluster_nodes.json.data }}"
   when: item.status != 'online'
   delegate_to: localhost
-
-- name: Preflight | Check quorum via pvecm
-  ansible.builtin.shell: |
-    pvecm status 2>/dev/null | grep -i "quorate" | grep -i "yes"
-  register: quorum_check
-  changed_when: false
-  failed_when: quorum_check.rc != 0
+  run_once: true
 
 - name: Preflight | Check CEPH health
   when: ceph_enabled | bool
   block:
     - name: Preflight | Get CEPH health status
-      ansible.builtin.shell: |
-        ceph health 2>/dev/null
+      ansible.builtin.shell: ceph health 2>/dev/null
       register: ceph_health
       changed_when: false
 
-    - name: Preflight | Abort if CEPH is not healthy
+    - name: Preflight | Abort if CEPH is in error state
       ansible.builtin.fail:
         msg: >
           CEPH health check FAILED — status: {{ ceph_health.stdout }}.
@@ -60,5 +55,7 @@
 
 - name: Preflight | Cluster health check passed
   ansible.builtin.debug:
-    msg: "Cluster health check passed — all nodes online, quorum OK{{ ', CEPH checked' if ceph_enabled else '' }}"
+    msg: "Cluster health check passed — all {{ cluster_nodes.json.data | length }} nodes online, quorum OK{{ ', CEPH checked' if ceph_enabled else '' }}"
+  delegate_to: localhost
+  run_once: true