keycloak - realm resolution based on username (email address)
问题 I'm working on a multi tenant project where usernames are actually their email addresses and the domain of the email serves as a tenant identifier. Now in keycloak I'll have different realms per tenant, but I want to have a single login page for all tenants and the actual realm that will do the authentication to be somehow resolved by the username (email address). How do I go about doing that? I found a thread on the mailing list (that I cant find now...) that discussed the same problem. It