Refactored catalog_service{,_info} and auth modules

Replaced service_catalog return value in auth module with new
catalog_service_info module.

Change-Id: I1ca5082d643eb97e8cb951a4bccf92b78537d917

plugins/modules/catalog_service_info.py

@@ -0,0 +1,104 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2022 by Red Hat, Inc.
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+
+DOCUMENTATION = r'''
+module: catalog_service_info
+short_description: Retrieve information about services from OpenStack
+author: OpenStack Ansible SIG
+description:
+    - Retrieve information about services from OpenStack.
+options:
+    name:
+      description:
+        - Name or ID of the service.
+      type: str
+requirements:
+    - "python >= 3.6"
+    - "openstacksdk"
+
+extends_documentation_fragment:
+- openstack.cloud.openstack
+'''
+
+EXAMPLES = r'''
+- name: Fetch all services
+  openstack.cloud.catalog_service_info:
+    cloud: devstack
+
+- name: Fetch a single service
+  openstack.cloud.catalog_service_info:
+    cloud: devstack
+    name: heat
+'''
+
+RETURN = r'''
+services:
+    description: List of dictionaries the services.
+    returned: always
+    type: list
+    elements: dict
+    contains:
+        id:
+            description: Service ID.
+            type: str
+            sample: "3292f020780b4d5baf27ff7e1d224c44"
+        name:
+            description: Service name.
+            type: str
+            sample: "glance"
+        type:
+            description: Service type.
+            type: str
+            sample: "image"
+        description:
+            description: Service description.
+            type: str
+            sample: "OpenStack Image Service"
+        is_enabled:
+            description: Service status.
+            type: bool
+            sample: True
+        links:
+            description: Link of the service
+            type: str
+            sample: http://10.0.0.1/identity/v3/services/0ae87
+'''
+
+from ansible_collections.openstack.cloud.plugins.module_utils.openstack import (
+    OpenStackModule
+)
+
+
+class CatalogServiceInfoModule(OpenStackModule):
+    argument_spec = dict(
+        name=dict(),
+    )
+
+    module_kwargs = dict(
+        supports_check_mode=True,
+    )
+
+    def run(self):
+        name_or_id = self.params['name']
+
+        if name_or_id:
+            service = self.conn.identity.find_service(name_or_id)
+            services = [service] if service else []
+        else:
+            services = self.conn.identity.services()
+
+        self.exit_json(changed=False,
+                       services=[s.to_dict(computed=False) for s in services])
+
+
+def main():
+    module = CatalogServiceInfoModule()
+    module()
+
+
+if __name__ == "__main__":
+    main()