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Quantum RBAC


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Quantum RBAC

  1. 1. RBAC for Quantum<br />Tuesday, October 4 12.00 PM<br />Openstack “Essex” design summitBoston – October 3-5 2001<br />Netstack track<br />
  2. 2. Agenda<br />Current status<br />RBAC use cases<br />Outcome from Keystone RBAC session<br />Open discussion<br />
  3. 3. Current status<br />No Authentication/No Authorization<br />Unofficially:<br />Authentication provided by Keystone<br />Simple Authorization performed with data returned by Keystone<br />Issue: AuthZ requires expressing predicates on resources outside Quantum boundaries<br />E.g.: the VIF, which is managed by Nova<br />
  4. 4. Relevant Use Cases for RBAC<br />Public and ‘community’ networks<br />Networks which are owned by a specific tenant, but are accessible to other tenants as well<br />Distinct roles within tenants<br />Standard user / network administrator<br />‘Service’ resources<br />Some interfaces might belong to services which are inserted by the Cloud Service Provider<br />Recalls yesterday’s discussion<br />Something missing?<br />
  5. 5. Public/Community networks<br />Definition: A network on which several tenants can plug their own interfaces, but is nevertheless always ‘owned’ by a single tenant<br />Implementation:<br />Simple way: the service provider acts as a tenant<br />Single public network per deployment<br />Bit more complex way: service provider defines and own several ‘public networks’<br />E.g.: each network has different QoS/security attributes<br />Even more complex way: tenants can delegate access to their network to other tenants<br />
  6. 6. Multiple roles within tenants<br />A tenant can define several users<br />Keystone already allows this<br />Users are not all equals<br />Keystone uses roles for handling this<br />Introducing user roles in Quantum:<br />Associating roles with base and extended operations<br />‘Fixed’ roles<br />Fully customizable roles<br />
  7. 7. Authorizing ‘Service’ interfaces<br />Use case highlighted in Edgar’s session on Monday<br />
  8. 8. Outcome of Keystone RBAC session<br />?<br />
  9. 9. Implementation<br />Current proposal available here:<br /> <br />
  10. 10. Follow-up actions<br />Prioritize use cases<br />Decide on an implementation strategy for each use case<br />Associate tasks with names!<br />