VMware: confine search for network till datacenter level (#40382)

If there are multiple distributed virtual portgroup network with same name
in different datacenter, vmware_guest module used to choose first DVPG irrespective
of the datacenter. This caused problem if two datacenter has same name for DVPG,
vmware_guest module failed with error "The object or item referred to could not be found."

This fix adds check to search for network (Distributed Virtual Portgroup)
till datacenter level. This avoids selection of same name DVPG from other datacenter.

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

lib/ansible/modules/cloud/vmware/vmware_guest.py

@@ -1118,7 +1118,7 @@ class PyVmomiHelper(PyVmomi):
                 self.module.fail_json(msg="Please specify at least a network name or"
                                           " a VLAN name under VM network list.")
 
-            if 'name' in network and find_obj(self.content, [vim.Network], network['name']) is None:
+            if 'name' in network and self.cache.get_network(network['name']) is None:
                 self.module.fail_json(msg="Network '%(name)s' does not exist." % network)
             elif 'vlan' in network:
                 dvps = self.cache.get_all_objs(self.content, [vim.dvs.DistributedVirtualPortgroup])
@@ -1241,6 +1241,7 @@ class PyVmomiHelper(PyVmomi):
 
             if hasattr(self.cache.get_network(network_name), 'portKeys'):
                 # VDS switch
+
                 pg_obj = None
                 if 'dvswitch_name' in network_devices[key]:
                     dvs_name = network_devices[key]['dvswitch_name']
@@ -1251,7 +1252,7 @@ class PyVmomiHelper(PyVmomi):
                     if pg_obj is None:
                         self.module.fail_json(msg="Unable to find distributed port group %s" % network_name)
                 else:
-                    pg_obj = find_obj(self.content, [vim.dvs.DistributedVirtualPortgroup], network_name)
+                    pg_obj = self.cache.find_obj(self.content, [vim.dvs.DistributedVirtualPortgroup], network_name)
 
                 if (nic.device.backing and
                    (not hasattr(nic.device.backing, 'port') or