Shib with Multiple AWS Accounts

Jason Rotunno jrotunno at
Wed Oct 4 13:44:27 EDT 2017

Excellent. I didn't realize Amazon lets you choose which account/role to
use upon login. This works perfectly.

Thanks, all, for the responses.


On Wed, Oct 4, 2017 at 12:01 PM, Wessel, Keith <kwessel at> wrote:

> We've just baked the account number into the group name in our directory.
> We can then map users to different, or in some cases, multiple accounts
> with our attribute definition. If the user is in multiple accounts and/or
> roles, AWS lets them choose upon login. I can't see a reason to have
> separate login links.
> Keith
> -----Original Message-----
> From: users [mailto:users-bounces at] On Behalf Of Cantor,
> Scott
> Sent: Wednesday, October 04, 2017 10:57 AM
> To: Shib Users <users at>
> Subject: Re: Shib with Multiple AWS Accounts
> On 10/4/17, 11:52 AM, "users on behalf of Jason Rotunno" <
> users-bounces at on behalf of jrotunno at> wrote:
> > We have some other AWS accounts that I'd like to integrate with Shib as
> well, and I'm trying to figure out how to populate the
> > awsRoles attribute with different account numbers based on which AWS
> account is being accessed.
> Amazon has one entityID for the entire platform and a standard request is
> not going to differentiate accounts. I suppose you could bake in something
> proprietary into the system to signal this but that's heavy work that would
> have involve webflow customization if not even deeper manipulation of the
> system.
> The Amazon design is that you send everything in all cases, all accounts,
> and all roles. It's their limitation. I haven't seen any compelling reason
> to waste my time on it. What exactly are you trying to avoid doing? Do you
> really expect a given user to be accessing hundreds of accounts?
> -- Scott
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Jason Rotunno
System & Security Administrator
Swarthmore College
500 College Ave
Swarthmore, PA 19081

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