feat(vmware): add hypervisor.node for ESXi host pinning (mutually exclusive with cluster)

roles/global_defaults/defaults/main.yml

@@ -47,6 +47,7 @@ hypervisor_defaults:
   username: ""
   password: ""
   host: ""
+  node: ""
   storage: ""
   datacenter: ""
   cluster: ""
@@ -139,7 +140,7 @@ hypervisor_required_fields:
     hypervisor: [url, username, password, host, storage]
     system: [id]
   vmware:
-    hypervisor: [url, username, password, datacenter, cluster, storage]
+    hypervisor: [url, username, password, datacenter, storage]
     system: []
   xen:
     hypervisor: []

roles/global_defaults/tasks/validation.yml

@@ -166,6 +166,23 @@
     label: "hypervisor.{{ item }}"
   no_log: true
 
+- name: Validate VMware placement (cluster or node required, mutually exclusive)
+  when:
+    - system_cfg.type == "virtual"
+    - hypervisor_type == "vmware"
+  ansible.builtin.assert:
+    that:
+      - >-
+        (hypervisor_cfg.cluster | default('') | string | length > 0)
+        or (hypervisor_cfg.node | default('') | string | length > 0)
+      - >-
+        (hypervisor_cfg.cluster | default('') | string | length == 0)
+        or (hypervisor_cfg.node | default('') | string | length == 0)
+    fail_msg: >-
+      VMware requires either hypervisor.cluster or hypervisor.node (mutually exclusive).
+      cluster targets a vSphere cluster; node targets a specific ESXi host.
+    quiet: true
+
 - name: Validate hypervisor-specific required system fields
   when:
     - system_cfg.type == "virtual"

roles/virtualization/tasks/vmware.yml

@@ -32,7 +32,8 @@
           {%- endfor -%}
           {{ ns.out }}
       community.vmware.vmware_guest:
-        cluster: "{{ hypervisor_cfg.cluster }}"
+        cluster: "{{ hypervisor_cfg.cluster if (hypervisor_cfg.node | default('') | length == 0) else omit }}"
+        esxi_hostname: "{{ hypervisor_cfg.node if (hypervisor_cfg.node | default('') | length > 0) else omit }}"
         folder: "{{ system_cfg.path if system_cfg.path | string | length > 0 else omit }}"
         name: "{{ hostname }}"
         # Generic guest ID — VMware auto-detects OS post-install