Change-Id: Ib8850b9251ac5165c25ab08d23a01db4a02fbdae

We need to be sure that enabled param is defined and set to True
during a state applying.

Change-Id: I19cd4c834f254d76d6b521d983d05b227c048065

command called by service.dead state:
systemd-run --scope systemctl stop mysql.service

More common way is to shut down service using known credentials

Change-Id: I2abe7eeea850333139587347039b1de8a6ea486f

Change-Id: I6047d632a2bfeb6525ac60092436ccd5334671e4

Change-Id: I91f55d599f5291f34bfa81f55dafd6734606e1cc

Galera master installation hangs on installation
mysql-server-wsrep-5.6. It seems that log_error is not working,
because of next message: "mysqld_safe Can't log to error log and
syslog at the same time. Remove all --log-error configuration
options for --syslog to take effect." Using "syslog = yes" instead
of log_error makes it works without any other changes.

Change-Id: I39a8a87ed048557c19f3843b97c75469385e4978
Closes-bug: PROD-9065

Bug: After deployment of linux formulas and salt states
/etc/security/limits.conf are not applying, as result connections
to mysql failed with error (pymysql.err.OperationalError)
(1040, u'Too many connections')

Solution: create mysql.overide, where ulimit is set to 102400

Closed-bug: PROD-8427

Conflicts:
	galera/master.sls
	galera/slave.sls

Conflicts:
	galera/master.sls
	galera/slave.sls