fix minimum host count in current inventory group before enabling pve-cluster

Author: tbasset

tasks/main.yml

@@ -14,6 +14,15 @@
   with_items: "{{ groups[pve_group] }}"
   when: "pve_cluster_enabled | bool"
 
+- name: Count host in {{ pve_group }}
+  set_fact:
+    pve_cluster_host_count: "{{ groups[pve_group] | length }}"
+
+- name: Ensure that group has more than one host to enable pve_cluster
+  set_fact:
+    pve_cluster_enabled: false
+  when: "pve_cluster_host_count | int <= 1"
+
 - name: Ensure this host is in the group specified
   assert:
     that: