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在Docker上快速配置PerconaXtraDBCluster集群
创建Docker内部网络
# Docker创建内部网络 Create network
$ docker network create pxc-network 创建多个PXC节点
# 初始化第一个节点 Init First node:
$ docker run -d \
-e MYSQL_ROOT_PASSWORD=root \
-e CLUSTER_NAME=cluster1 \
-p 3315:3306 \
--name=node1 \
--net=pxc-network \
percona/percona-xtradb-cluster:5.7
# 加入第二个节点 Join the second node:
docker run -d \
-e MYSQL_ROOT_PASSWORD=root \
-e CLUSTER_NAME=cluster1 \
-e CLUSTER_JOIN=node1 \
-p 3316:3306 \
--name=node2 \
--net=pxc-network \
percona/percona-xtradb-cluster:5.7# 加入第三个节点 Join the third node:
$ docker run -d \
-e MYSQL_ROOT_PASSWORD=root \
-e CLUSTER_NAME=cluster1 \
-e CLUSTER_JOIN=node1 \
-p 3317:3306 \
--name=node3 \
--net=pxc-network \
percona/percona-xtradb-cluster:5.7PS:PerconaXtraDBCluster最少要求三个节点，后续的节点可以不用再加入，但是如果您想用更多节点提供高负载，高吞吐量，就可以加入
# 加入第四个节点 Join the forth node
$ docker run -d \
-e MYSQL_ROOT_PASSWORD=root \
-e CLUSTER_NAME=cluster1 \
-e CLUSTER_JOIN=node1 \
-p 3318:3306 \
--name=node4 \
--net=pxc-network \
percona/percona-xtradb-cluster:5.7
# 加入第五个节点 Join the fifth node
$ docker run -d \
-e MYSQL_ROOT_PASSWORD=root \
-e CLUSTER_NAME=cluster1 \
-e CLUSTER_JOIN=node1 \
-p 3319:3306 \
--name=node5 \
--net=pxc-network \
percona/percona-xtradb-cluster:5.7# 加入第六个节点 Join the 6th node
$ docker run -d \
-e MYSQL_ROOT_PASSWORD=root \
-e CLUSTER_NAME=cluster1 \
-e CLUSTER_JOIN=node1 \
-p 3320:3306 \
--name=node6 \
--net=pxc-network \
percona/percona-xtradb-cluster:5.7进入MySQL客户端创建用户
示例，进入节点1 ：
$ sudo docker exec -it node1 /usr/bin/mysql -uroot -proot
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 5.7.19-17-57-log Percona XtraDB Cluster (GPL), Release rel17,
Copyright (c) 2000, 2017, 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@node1>create user 'perconausr'@'%' identified by '123456';
grant all privileges on *.* to 'perconausr'@'%' ;
flush privileges;
在图形化客户端登录
# 使用Docker PS 命令查看各个节点3306端口暴露到宿主机的端口
MacdeMacBook-Pro:~ mac$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d6ae0fca296b percona/percona-xtradb-cluster:5.7 "/entrypoint.sh " 5 seconds ago Up 3 seconds 4567-4568/tcp, 0.0.0.0:3320->3306/tcp node6
4681b9047f91 percona/percona-xtradb-cluster:5.7 "/entrypoint.sh " 44 seconds ago Up 42 seconds 4567-4568/tcp, 0.0.0.0:3319->3306/tcp node5
de9eec930dc2 percona/percona-xtradb-cluster:5.7 "/entrypoint.sh " 9 minutes ago Up 9 minutes 4567-4568/tcp, 0.0.0.0:3318->3306/tcp node4
9fd0d786c1fb percona/percona-xtradb-cluster:5.7 "/entrypoint.sh " About an hour ago Up About an hour 4567-4568/tcp, 0.0.0.0:3317->3306/tcp node3
692de88f91f4 percona/percona-xtradb-cluster:5.7 "/entrypoint.sh " About an hour ago Up About an hour 4567-4568/tcp, 0.0.0.0:3316->3306/tcp node2
50398c3bf454 percona/percona-xtradb-cluster:5.7 "/entrypoint.sh " About an hour ago Up About an hour 4567-4568/tcp, 0.0.0.0:3315->3306/tcp node1
通过上述信息得知，可以通过127.0.0.1:3320,127.0.0.1:3319,127.0.0.1:3318,127.0.0.1:3317,127.0.0.1:3316,127.0.0.1:3315这几个URL登录到不同的MYSQL节点，在任意一个节点上增删改查，都会同步到其他节点。
