Set mysql socket from galera's map.jinja

salt/files/minion.conf

 {%- endif %}
 
 {%- if pillar.get('galera', {}).master is defined %}
-mysql.unix_socket: /var/run/mysqld/mysqld.sock
+{%- from "galera/map.jinja" import master with context %}
+mysql.unix_socket: {{ master.socket }}
 mysql.user: '{{ pillar.galera.master.admin.user }}'
 mysql.pass: '{{ pillar.galera.master.admin.password }}'
 mysql.db: 'mysql'
   version: 1
 {%- endif %}
 
-{%- endfor %}
+{%- endfor %}