Merge "Only run mysql upgrade commands when needed" into stable/train

deployment/database/mysql-pacemaker-puppet.yaml

@@ -579,6 +579,12 @@ outputs:
                       - |
                         kolla_set_configs
                         if mysqladmin ping --silent; then exit 0; fi
+                        upgraded_ver=$(cat /var/lib/mysql/mysql_upgrade_info 2>/dev/null || true)
+                        mysql_ver=$(mysql --version | awk -F'[ ,]*' '{print $5}')
+                        if [ "${upgraded_ver}" = "${mysql_ver}" ]; then
+                            echo "mysql already upgraded"
+                            exit 0
+                        fi
                         chown -R mysql:mysql /var/lib/mysql
                         chown -R mysql:mysql /var/log/mysql
                         mysqld_safe --user=mysql --wsrep-provider=none --skip-networking --wsrep-on=off --log-error=/var/log/mysql/mysqld-upgrade.log &