Assign Service Account Role ${SUPER_USER_ROLE} to Client ${RS_CLIENT_ID} by initial Keycloak configuration

[gunterze]

Assign Service Account Role ${SUPER_USER_ROLE:-root} to Client ${RS_CLIENT_ID:-dcm4chee-arc-rs} by initial Keycloak configuration to enable to invoke RESTful services with access token dedicated to this client retrieved by OAuth2 Client Credentials Grant.

Before #4318, it was sufficient to assign ${AUTH_USER_ROLE:-user} as Service Account Role to Client ${RS_CLIENT_ID:-dcm4chee-arc-rs} to ensure such behavior, because

Archive Network AE Attribute :

Name	Type	Description (LDAP Attribute)
Accepted User Role(s)	string	Roles of users from which web requests are accepted; any if absent. (dcmAcceptedUserRole)

was configured as

• ${AUTH_USER_ROLE:-user}
• ${ADMIN_USER_ROLE:-admin}

now:

• ${REGULAR_USER_ROLE:-user}
• ${ADMIN_USER_ROLE:-admin}