[pve-devel] SSO (OAuth2 / OpenID Connect) support in Proxmox 2020/2021?

[Victor Hooi]

Hi,

Is there any update on SSO support in Proxmox?

I know there was an earlier thread asking about OAuth2 from 2018:

https://lists.proxmox.com/pipermail/pve-devel/2018-March/031317.html

and they mentioned it might be possible to swap in a Perl OAuth2 module.

I don't know much about Perl or its ecosystem, but I just Googled and found
these two:

https://metacpan.org/changes/distribution/LWP-Authen-OAuth2
https://metacpan.org/pod/Net::OAuth2

Our use case is to use Google as the OAuth2 endpoint, so that users can
authenticate against their Google/Gmail account - in fact I saw there's
even a specific module for that:

https://metacpan.org/pod/LWP::Authen::OAuth2::ServiceProvider::Google

On the SAML front I saw this forum thread:

https://forum.proxmox.com/threads/http-authentication-saml-single-sign-on.33701/

https://bugzilla.proxmox.com/show_bug.cgi?id=1583

(SAML seems less in vogue these days, and OAuth2, OpenID-Connect are more
used - e.g.:

https://developers.google.com/identity/protocols/oauth2/openid-connect

Is support for something like this possible to add to Proxmox?

Thanks,
Victor