tree 4f71fd10c77824b2db20d80795eca47089e83681
parent 4aa7322db5ec221b2419e12a9ec7af5b8c66659c
author Andy Botting <andy.botting@ardc.edu.au> 1624443887 +1000
committer Andy Botting <andy.botting@ardc.edu.au> 1642394372 +1100

Make preferred_username optional for Keycloak

This commit adds a new config option 'use-preferred-username' which
can be used with the Keycloak provider to make it optional to use
the preferred_username delivered by Keycloak.

This is useful in situations where the preferred_username is set
as an email address, which don't work as a gerrit username.

Leaving the username unset also allows the user to choose their
own username.

Change-Id: Iff114537527c672190c6a1a41726d2c32bb97810