MySQLCluster
Nous allons mettre en place un cluster MySQL basé sur MySQL Cluster.
Mise en place du réseau
docker network create cluster --subnet=192.168.0.0/16Puis récupérons les fichiers ou recopier les fichier de configuration:
https://github.com/mysql/mysql-docker/tree/mysql-clusterLe fichier my.cnf est ainsi:
# Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
[mysqld]
ndbcluster
ndb-connectstring=192.168.0.2
user=mysql
[mysql_cluster]
ndb-connectstring=192.168.0.2et le fichier mysqlcluster.cnf
# Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
[ndbd default]
NoOfReplicas=2
DataMemory=80M
IndexMemory=18M
[ndb_mgmd]
NodeId=1
hostname=192.168.0.2
datadir=/var/lib/mysql
[ndbd]
NodeId=2
hostname=192.168.0.3
datadir=/var/lib/mysql
[ndbd]
NodeId=3
hostname=192.168.0.4
datadir=/var/lib/mysql
[mysqld]
NodeId=4
hostname=192.168.0.10
Lancement du noeud de management
docker run -d --net=cluster --name=management1 --ip=192.168.0.2 mysql/mysql-cluster ndb_mgmdPuis lancons les noeud de données:
docker run -d --net=cluster --name=ndb1 --ip=192.168.0.3 mysql/mysql-cluster ndbd
docker run -d --net=cluster --name=ndb2 --ip=192.168.0.4 mysql/mysql-cluster ndbdEt enfin on peux executer le noeud SQL:
docker run -d --net=cluster --name=mysql1 --ip=192.168.0.10 -e MYSQL_RANDOM_ROOT_PASSWORD=true mysql/mysql-cluster mysqld
Ce noeud va générer un password aléatoire :
docker logs mysql1 2>&1 | grep PASSWORD
[Entrypoint] GENERATED ROOT PASSWORD: =EbISQomAxvOmnam4d9EJigIjwA
Changement du mot de passe:
docker exec -it mysql1 mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.7.30-ndb-7.6.14-cluster-gpl MySQL Cluster Community Server (GPL)
Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
Query OK, 0 rows affected (0.06 sec)
Le management du cluster se fait via :
docker run -it --net=cluster mysql/mysql-cluster ndb_mgm