[Dovecot] Replication with virtual users and static userdb possible ?

[deano-dovecot at areyes.com]

I'm trying to avoid switching the userdb from a nice simple static
setup to something else to enable replication. Is there anyone using
replication with a virtual user configuration ? How did you do it ?
Actually, anyone doing replication at all - what does your config look
like ? 

Thanks - 

D. 

On 2014-06-03 11:54, deano-dovecot at areyes.com
wrote: 

> Is it possible to get replication working in a virtual user
setup
> that uses a static userdb ? My environment is fairly simple and
typical
> - there's a single system user (vmail) that owns all the home
dirs
> (/var/mail/domain.com/user). The virtual users
>
(userid at domain.com:secretpassword) are kept in a single file
>
(/var/mail/domain.com/PASSWD) that's unique per domain, and referenced
>
as a static userdb : 
> 
> passdb {
> driver = passwd-file
> args =
scheme=plain username_format=%u /var/mail/%d/PASSWD
> } 
> 
> userdb {
>
driver = static
> args = uid=vmail gid=vmail home=/var/mail/%d/%n
> } 
>

> I know the
> wiki http://wiki2.dovecot.org/Replication states that
user listing must
> be enabled, but that's not available for a static
userdb. The wiki
> http://wiki2.dovecot.org/UserDatabase/Static also
says that it shouldn't
> be a problem because it will use do a passdb
lookup instead (except for
> PAM which isn't used here). 
> 
>
Unfortunately, it's not working. I've testing with ssh : 
> 
>
dsync_remote_cmd = ssh -l vmail %{host} doveadm
> dsync-server -u%u
-l%{lock_timeout} -n%{namespace}
> mail_replica =
>
remote:vmail at server2.domain.com 
> as well as with straight tcp (SSL
for
> later) 
> 
> mail_replica = tcp:server2.domain.com:999 
> 
>
/var/log/mail.err shows the problems ... 
> 
> Jun 3 11:30:53 server1
dovecot: auth: Error: Trying to iterate users, but userdbs don't support
it
> Jun 3 11:30:53 server1 dovecot: replicator: Error: User listing
returned failure
> Jun 3 11:30:53 server1 dovecot: replicator: Error:
listing users failed, can't replicate existing data 
> 
> Anyone else
have it working ? I'm sure it's something simple that I've just
overlooked.