Yes, the keystone charm will expose the service_user_id in the identity-service relation for all services.
The charms for services that do inter-service RPC will have to excplicitly expose/consume their peers service_user_id in the inter-service relation. This is necessary because any given service does only have access to their own credentials and they have no access to obtain information about other services or users.
Yes, the keystone charm will expose the service_user_id in the identity-service relation for all services.
The charms for services that do inter-service RPC will have to excplicitly expose/consume their peers service_user_id in the inter-service relation. This is necessary because any given service does only have access to their own credentials and they have no access to obtain information about other services or users.