Assumes self-signed cert when using SSL; how to specify a cert authority not described in documentation

[David Aikema]

When configuring wsrep_provider_options to use an SSL certificate, the documentation at http://www.codership.com/wiki/doku.php?id=galera_parameters does not list an entry to define a certificate authority.

I'd assumed that that meant that as long as SSL was happy verifying certificates (i.e. a system-level certificate installation) that I wouldn't have problems with my certificate verification. Eventually I discovered that in my wsrep_provider_options viewed when the server was active, there was an implicity assumption that a self-signed cert was being used - i.e. the certificate authority was being set to the same file as the certificate itself.

Inserting in the documentation at http://www.codership.com/wiki/doku.php?id=galera_parameters that socket.ssl_ca can be used to specify a certificate authority would seem helpful.