Fix tower_* modules **params kwargs (#40137)

* Add cleaning function to handle **params

The cleaning function is only added to tower modules which pass a `**params`
argument as an unpacked dictionnary to the tower-cli method calls.

Fix #39745

* Remove previous code added only for tower_role

In 872a7b4, the `update_resources` function was modified so that it would clear unwanted
parameters. However, this behaviour is desired for other modules too, modified in
another commit. (see tower_clean_params).

lib/ansible/module_utils/ansible_tower.py

@@ -45,7 +45,7 @@ def tower_auth_config(module):
     it will attempt to fetch values from the module pararms and
     only pass those values that have been set.
     '''
-    config_file = module.params.get('tower_config_file')
+    config_file = module.params.pop('tower_config_file', None)
     if config_file:
         config_file = os.path.expanduser(config_file)
         if not os.path.exists(config_file):
@@ -57,16 +57,16 @@ def tower_auth_config(module):
             return parser.string_to_dict(f.read())
     else:
         auth_config = {}
-        host = module.params.get('tower_host')
+        host = module.params.pop('tower_host', None)
         if host:
             auth_config['host'] = host
-        username = module.params.get('tower_username')
+        username = module.params.pop('tower_username', None)
         if username:
             auth_config['username'] = username
-        password = module.params.get('tower_password')
+        password = module.params.pop('tower_password', None)
         if password:
             auth_config['password'] = password
-        verify_ssl = module.params.get('tower_verify_ssl')
+        verify_ssl = module.params.pop('tower_verify_ssl', None)
         if verify_ssl is not None:
             auth_config['verify_ssl'] = verify_ssl
         return auth_config

lib/ansible/modules/web_infrastructure/ansible_tower/tower_group.py

@@ -134,7 +134,7 @@ def main():
     name = module.params.get('name')
     inventory = module.params.get('inventory')
     credential = module.params.get('credential')
-    state = module.params.get('state')
+    state = module.params.pop('state')
 
     variables = module.params.get('variables')
     if variables:

lib/ansible/modules/web_infrastructure/ansible_tower/tower_job_template.py

@@ -222,7 +222,7 @@ def main():
         module.fail_json(msg='ansible-tower-cli required for this module')
 
     name = module.params.get('name')
-    state = module.params.get('state')
+    state = module.params.pop('state')
     json_output = {'job_template': name, 'state': state}
 
     tower_auth = tower_auth_config(module)

lib/ansible/modules/web_infrastructure/ansible_tower/tower_role.py

@@ -87,10 +87,6 @@ def update_resources(module, p):
     by name using their unique field (identity)
     '''
     params = p.copy()
-    for key in p:
-        if key.startswith('tower_'):
-            params.pop(key)
-    params.pop('state', None)
     identity_map = {
         'user': 'username',
         'team': 'name',
@@ -134,7 +130,7 @@ def main():
         module.fail_json(msg='ansible-tower-cli required for this module')
 
     role_type = module.params.pop('role')
-    state = module.params.get('state')
+    state = module.params.pop('state')
 
     json_output = {'role': role_type, 'state': state}