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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>In the research environment, we have frequent cases where a user is associated with multiple tenants. For example, when you are finishing work on a previous project but are mainly working on the new one.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>As we move towards domain/tenant/user, we need to ensure that the tools support multi-tenant per user. Correct accounting is critical.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>This does require extra code but it is relevant given the use cases.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Tim Bell<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>CERN<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> openstack-bounces+tim.bell=cern.ch@lists.launchpad.net [mailto:openstack-bounces+tim.bell=cern.ch@lists.launchpad.net] <b>On Behalf Of </b>Caitlin Bestler<br><b>Sent:</b> 29 May 2012 19:18<br><b>To:</b> openstack@lists.launchpad.net<br><b>Subject:</b> [Openstack] Identity API v3 - Why allow multi-tenant users?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>One of the major complication I see in the API is that users can be associated with multiple tenants.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>What is the benefit of this? What functionality would be lost if a human user merely had to use a different account with each tenant?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>There are numerous issues with multi-tenant users. For example, if a user is associated with multiple tenants, who resets the user’s password?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></div></body></html>