Default keystone user role changed to member

_member_ role is a long not used default keystone role,
for instance Horizon moved to use member role from yoga [1]

[1] https://docs.openstack.org/horizon/yoga/configuration/settings.html#openstack-keystone-default-role

Closes-Bug: #2038314
Change-Id: Idc9bce82c682e37c5bea10c93577091b85f3ad45

ansible/group_vars/all.yml

@@ -993,7 +993,7 @@ fernet_token_allow_expired_window: 172800
 # expiry and allow expired window, multiple active keys will be necessary.
 fernet_key_rotation_interval: "{{ fernet_token_expiry + fernet_token_allow_expired_window }}"
 
-keystone_default_user_role: "_member_"
+keystone_default_user_role: "member"
 
 # OpenStack authentication string. You should only need to override these if you
 # are changing the admin tenant/project or user.

ansible/library/kolla_toolbox.py

@@ -93,7 +93,7 @@ EXAMPLES = '''
         container_engine: docker
         module_name: os_keystone_role
         module_args:
-          name: _member_
+          name: member
           auth: "{{ '{{ openstack_keystone_auth }}' }}"
         module_extra_vars:
           openstack_keystone_auth:

releasenotes/notes/change-default-keystone-role-386974967adfed65.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Default keystone user role has been changed from deprecated role
+    ``_member_`` to ``member`` role.