##### SUMMARY
[`zabbix_host`](https://docs.ansible.com/ansible/latest/modules/zabbix_host_module.html) module currently does not support specifying usermacros.

While usermacros can be added separately with [`zabbix_hostmacro`](https://docs.ansible.com/ansible/latest/modules/zabbix_hostmacro_module.html) module, that splits up the configuration and makes it very hard to maintain.

It would be great to specify macros in the host definition of `zabbix_host`.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
zabbix_host
self._zapi.host.update(parameters)
            interface_list_copy = exist_interface_list
            if interfaces:
                for interface in interfaces:
                    flag = False
                    interface_str = interface
                    for exist_interface in exist_interface_list:
                        interface_type = int(interface['type'])
                        exist_interface_type = int(exist_interface['type'])
                        if interface_type == exist_interface_type:
                            
                            interface_str['interfaceid'] = exist_interface['interfaceid']
                            self._zapi.hostinterface.update(interface_str)
                            flag = True
                            interface_list_copy.remove(exist_interface)
                            break
                    if not flag:
                        
                        interface_str['hostid'] = host_id
                        self._zapi.hostinterface.create(interface_str)
                        
                remove_interface_ids = []
                for remove_interface in interface_list_copy:
                    interface_id = remove_interface['interfaceid']
                    remove_interface_ids.append(interface_id)
                if len(remove_interface_ids) > 0:
                    self._zapi.hostinterface.delete(remove_interface_ids)
        except Exception as e:
            self._module.fail_json(msg="Failed to update host %s: %s" % (host_name, e))
    def delete_host(self, host_id, host_name):