GCP Inventory Plugin scopes fix

lib/ansible/module_utils/gcp_utils.py

@@ -106,6 +106,9 @@ class GcpSession(object):
         if not HAS_GOOGLE_LIBRARIES:
             self.module.fail_json(msg="Please install the google-auth library")
 
+        if 'auth_kind' not in self.module.params:
+            self.module.fail_json(msg="Auth kind parameter is missing")
+
         if self.module.params.get('service_account_email') is not None and self.module.params['auth_kind'] != 'machineaccount':
             self.module.fail_json(
                 msg="Service Acccount Email only works with Machine Account-based authentication"

lib/ansible/plugins/inventory/gcp_compute.py

@@ -12,7 +12,6 @@ DOCUMENTATION = '''
         - requests >= 2.18.4
         - google-auth >= 1.3.0
     extends_documentation_fragment:
-        - gcp
         - constructed
         - inventory_cache
     description:
@@ -35,6 +34,16 @@ DOCUMENTATION = '''
               hostnames should be assigned. Currently supported hostnames are
               'public_ip', 'private_ip', or 'name'.
           default: ['public_ip', 'private_ip', 'name']
+        auth_kind:
+            description:
+                - The type of credential used.
+        service_account_file:
+            description:
+                - The path of a Service Account JSON file if serviceaccount is selected as type.
+        service_account_email:
+            description:
+                - An optional service account email address if machineaccount is selected
+                  and the user does not wish to use the default email.
 '''
 
 EXAMPLES = '''