Support service tokens

Implement support for service_tokens. For that we convert
role_name to be a list along with renaming corresponding variable.

Additionally service_type is defined now for keystone_authtoken which
enables to validate tokens with restricted access rules

Depends-On: https://review.opendev.org/c/openstack/openstack-ansible-plugins/+/845690
Change-Id: I7064765e62d9e1a86fb20232429731840f697a88

defaults/main.yml

@@ -102,7 +102,6 @@ sahara_db_max_pool_size: "{{ openstack_db_max_pool_size | default('5') }}"
 sahara_db_pool_timeout: "{{ openstack_db_pool_timeout | default('30') }}"
 sahara_db_connection_recycle_time: "{{ openstack_db_connection_recycle_time | default('600') }}"
 
-sahara_role_name: admin
 sahara_api_bind_address: "{{ openstack_service_bind_address | default('0.0.0.0') }}"
 sahara_api_service_port: 8386
 
@@ -123,6 +122,12 @@ sahara_service_project_domain_id: default
 sahara_service_user_domain_id: default
 sahara_service_project_domain_name: Default
 sahara_service_user_domain_name: Default
+sahara_service_role_names:
+  - admin
+  - service
+sahara_service_token_roles:
+  - service
+sahara_service_token_roles_required: "{{ openstack_service_token_roles_required | default(True) }}"
 sahara_service_publicuri: "{{ sahara_service_publicuri_proto }}://{{ external_lb_vip_address }}:{{ sahara_service_port }}"
 sahara_service_internaluri: "{{ sahara_service_internaluri_proto }}://{{ internal_lb_vip_address }}:{{ sahara_service_port }}"
 sahara_service_adminuri: "{{ sahara_service_adminuri_proto }}://{{ internal_lb_vip_address }}:{{ sahara_service_port }}"

tasks/main.yml

@@ -145,7 +145,7 @@
     _service_users:
       - name: "{{ sahara_service_user_name }}"
         password: "{{ sahara_service_password }}"
-        role: "{{ sahara_role_name }}"
+        role: "{{ sahara_service_role_names }}"
     _service_endpoints:
       - service: "{{ sahara_service_name }}"
         interface: "public"

templates/sahara.conf.j2

@@ -44,6 +44,10 @@ project_name = {{ sahara_service_project_name }}
 username = {{ sahara_service_user_name }}
 password = {{ sahara_service_password }}
 
+service_token_roles_required = {{ sahara_service_token_roles_required | bool }}
+service_token_roles = {{ sahara_service_token_roles | join(',') }}
+service_type = {{ sahara_service_type }}
+
 memcached_servers = {{ sahara_memcached_servers }}
 
 token_cache_time = 300