User Roles (RBAC)

Roles #

Roles	Permissions
`admin`	Can update permissions for other users
`viewer`	Can view AIOLI resources and their own deployment tokens
`maintainer`	Can perform CRUD operations on AIOLI resources (registries, models, deployments, tokens, and resource/autoscaling templates)
`robot`	Can perform read operations on models and view their own deployment tokens; requires one-time authentication/authorization