ovirt: Add new api facts module (#28875)

* ovirt: Add new api facts module

* Simplify boilerplate and add Python 3 import

lib/ansible/modules/cloud/ovirt/ovirt_api_facts.py

@@ -0,0 +1,89 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# Copyright (c) 2017 Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+ANSIBLE_METADATA = {
+    'metadata_version': '1.1',
+    'status': ['preview'],
+    'supported_by': 'community'
+}
+
+
+DOCUMENTATION = '''
+---
+module: ovirt_api_facts
+short_description: Retrieve facts about the oVirt/RHV API
+author: "Ondra Machacek (@machacekondra)"
+version_added: "2.5"
+description:
+    - "Retrieve facts about the oVirt/RHV API."
+notes:
+    - "This module creates a new top-level C(ovirt_api) fact,
+       which contains a information about oVirt/RHV API."
+extends_documentation_fragment: ovirt_facts
+'''
+
+EXAMPLES = '''
+# Examples don't contain auth parameter for simplicity,
+# look at ovirt_auth module to see how to reuse authentication:
+
+# Gather facts oVirt API:
+- ovirt_api_facts:
+- debug:
+    var: ovirt_api
+'''
+
+RETURN = '''
+ovirt_api:
+    description: "Dictionary describing the oVirt API information.
+                  Api attributes are mapped to dictionary keys,
+                  all API attributes can be found at following
+                  url: https://ovirt.example.com/ovirt-engine/api/model#types/api."
+    returned: On success.
+    type: dictionary
+'''
+
+import traceback
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.ovirt import (
+    check_sdk,
+    create_connection,
+    get_dict_of_struct,
+    ovirt_facts_full_argument_spec,
+)
+
+
+def main():
+    argument_spec = ovirt_facts_full_argument_spec()
+    module = AnsibleModule(argument_spec)
+    check_sdk(module)
+
+    try:
+        auth = module.params.pop('auth')
+        connection = create_connection(auth)
+        api = connection.system_service().get()
+        module.exit_json(
+            changed=False,
+            ansible_facts=dict(
+                ovirt_api=get_dict_of_struct(
+                    struct=api,
+                    connection=connection,
+                    fetch_nested=module.params.get('fetch_nested'),
+                    attributes=module.params.get('nested_attributes'),
+                )
+            ),
+        )
+    except Exception as e:
+        module.fail_json(msg=str(e), exception=traceback.format_exc())
+    finally:
+        connection.close(logout=auth.get('token') is None)
+
+
+if __name__ == '__main__':
+    main()