As Xpand does not have a mysql.user table but a system.users
table, we need to arrange things so that the query used for
selecting annymous users can be different depending on the cluster.
Needs to be a member function as the dropping of anonymous
users must be done differently for Xpand. With current code,
no anonymous users in Xpand will be dropped, and there will
always be an error (so, should someone care about the return
code, this would not work).
Xpand nodes must be added one by one to the cluster as an attempt
to add more nodes will fail, if any of the nodes to be added
already are in the cluster.
Further, the adding of a node may also fail if, when the addition
is made, the addition of the previous node is still in process.
Now it will be attempted at most 5 times, while sleaping as many
seconds between each attempt as there has been attempts.
Some additional logging was also added.
config_test expects Maxscale start failure, but ssh to
Maxscale node also fails if VM is broken.
Test should fail in case of VM problem to prevent
Maxscale problem hiding.
MDBCI now supports separate Galera server .cnf configuring.
Changing MDBCI config template in order to use this MDBCI
capability. It allows to use any MariaDB product in the
backend (Community or Enterprise, production, staging or CI)
Now MDBCI is responsible for Clustrix installation
as well as license processing.
Clustrix version is hardcoded now
(until MDBCI fix for finding latest version)
This fixes the problem where an encrypted connection would not be created
even though the option for it was there. Also made it configurable outside
of the constructor to make it easier to use in tests.
