<div dir="ltr">Makes more sense now. In theory it should be relatively easy to add something like that, as you're just saying if this provider is unavailable use this other one and you're guaranteeing that the users will be the same. As you say though I'm not sure that's a very common use-case and supporting failover through a single provider would be more common.</div><div class="gmail_extra"><br><div class="gmail_quote">On 3 May 2016 at 19:58, Josh Cain <span dir="ltr"><<a href="mailto:josh.cain@redhat.com" target="_blank">josh.cain@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Long story short, it's the same user base, but exposed in a completely different way (as opposed to exactly the same services set in something like different data centers). As such, we thought two separate Federation Providers were appropriate, but now have realized that the failover case described above isn't covered.<br><br></div>I know this is a pretty non-standard use. We're in the middle of a migration of our services layer, so we're kind of an outlier when it comes to typical usage patterns. We've talked through simply handling this failover manually using a single provider, and we can by with that for now, but we're looking ahead at some similar use cases that might experience the same problem.<br></div><br></div>@Bill I think some kind of stackable configuration like the authenticators have could be really useful for us. If we could mark providers as 'alternative' or 'optional' in the same way it would give us what we need. Anyway, just an idea. At the end of the day I think we're after a way to customize the way in which federation providers interact with one another (or don't), whatever that looks like.<br></div><div><div class="gmail_extra"><span class=""><br clear="all"><div><div><div dir="ltr"><span><div><div>Josh Cain | Software Applications Engineer<br></div><i>Identity and Access Management</i><br></div><b>Red Hat</b><br><a href="tel:%2B1%20843-737-1735" value="+18437371735" target="_blank">+1 843-737-1735</a><br></span></div></div></div>
<br></span><div><div class="h5"><div class="gmail_quote">On Tue, May 3, 2016 at 12:35 PM, Stian Thorgersen <span dir="ltr"><<a href="mailto:sthorger@redhat.com" target="_blank">sthorger@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">With the current user federation strategy we have wouldn't this type of failover be implemented in the user federation provider itself? You're not actually "falling" back to another provider, it's the same provider, but the slave replica right?</div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On 3 May 2016 at 18:29, Bill Burke <span dir="ltr"><<a href="mailto:bburke@redhat.com" target="_blank">bburke@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
We don't have anything like that. Keycloak assumes that username is
unique in a federation. Before validating credentials it goes
through federation list. The first provider that finds a user of
that username will have credentials validated against it.<br>
<br>
So, no failover. I'm not sure i that's something Keycloak should be
responsible for. I'm open to adding it though.<div><div><br>
<br>
<div>On 5/3/2016 12:19 PM, Josh Cain wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div>
<div dir="ltr">
<div>
<div>Hi all,<br>
<br>
</div>
We're attempting to stack a number of FederationProviders, and
I was wondering if Keycloak currently does, or plans to
support falling back to a secondary provider *after* another
provider has already been used.<br>
<br>
</div>
For example, consider a realm with two providers configured:<br>
<ol>
<li>ProviderA, Priority 0</li>
<li>ProviderB, Priority1</li>
</ol>
<p>Where ProviderB is a fall-back mechanism containing the same
logical userbase as ProviderA.<br>
</p>
<div>
<div>
<div>
<div>If <i>user1</i> logs into Keycloak and is associated
with ProviderA, then ProviderA goes down, we'd ideally
like for ProviderB to be able to authenticate the user.
Right now, all our Keycloak instance does is attempt to
authenticate <i>user1</i> with ProviderA, then fails if
the provider is unsuccessful. Is there a way to
failover to ProviderB should ProviderA become
unavailable?<br>
</div>
<div><br clear="all">
<div>
<div>
<div dir="ltr"><span>
<div>
<div>Josh Cain | Software Applications
Engineer<br>
</div>
<i>Identity and Access Management</i><br>
</div>
<b>Red Hat</b><br>
<a href="tel:%2B1%20843-737-1735" value="+18437371735" target="_blank">+1 843-737-1735</a><br>
</span></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><pre>_______________________________________________
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</font></span></blockquote><span><font color="#888888">
<br>
<pre cols="72">--
Bill Burke
JBoss, a division of Red Hat
<a href="http://bill.burkecentral.com" target="_blank">http://bill.burkecentral.com</a></pre>
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