Pomerium: authenticate: support multiple identity providers

[blmhemu]

Is your feature request related to a problem? Please describe.
Is it possible to have multiple IdPs ?
Ex: https://github.com/oauth2-proxy/oauth2-proxy/issues/88

Describe the solution you'd like
Please see the description of this issue : https://github.com/oauth2-proxy/oauth2-proxy/issues/88

[desimone]

Hi @blmhemu ,

This is definitely something we are considering, but would like to better understand why people need this functionality. Specifically, I'd like to better understand which aspects of the multiple IdP support are related to federated identity and authentication versus pulling in additional context for authorization (or maybe both).

Can you tell me a bit more how you'd like to use this?

Thanks!

[blmhemu]

Thanks @desimone for the swift reply. The main purpose(at-least for me) behind having multiple IdPs is to cover a larger user base. For example some of my friends use google, some outlook, some github (with an edu mail), some facebook etc. Giving an option to select between IdPs would cover all of them.