Allow for use of multiple LDAP servers

[suprovsky]

Hey, most of companies use more than one LDAP server and I think it could be a cool enhancement if the app could connect to the directory thru more than one host. Thanks!

[ViViDboarder]

I don’t quite understand. Like load balance between two? Or invite users from two different servers?

[suprovsky]

If I'm getting it right, the app works as a service polling LDAP servers and many companies have more than one domain controller with AD (basically redundant servers for the same domain). So, it would be cool if it would be possible to define more than one controller in the configuration.

[ViViDboarder]

I see. If this is about redundancy, you could run multiple instances of the sync. It won't invite users who have already been invited.

As far as implementing multiple servers in one instance, I'm open to a PR. Probably best to start with a proposal for how it would work. Iterate through all, round robin, random select, or failover.