拉取網(wǎng)易蜂巢的mysql-server：5.6
docker pull hub.c.163.com/nce2/mysql:5.6
創(chuàng)建mysql5.6容器 1master+3個slave
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6
驗證容器狀態(tài)
[root@bogon ~]# docker psCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES907bbbf25d25 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 5 minutes ago Up 5 minutes 3306/tcp mysql-slave3a81df6c86808 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 5 minutes ago Up 5 minutes 3306/tcp mysql-slave2375eabd4c598 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 5 minutes ago Up 5 minutes 3306/tcp mysql-slave11651d1cab219 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 14 minutes ago Up 14 minutes 3306/tcp mysql-master
通過主機命令行進入master容器
docker exec -it mysql-master bash[root@bogon ~]# docker exec -it mysql-master bashroot@1651d1cab219:/#
在master中創(chuàng)建一個數(shù)據(jù)庫test_docker
root@1651d1cab219:/# mysql -uroot -pEnter password:Welcome to the MySQL monitor. Commands end with ; or /g.Your MySQL connection id is 4Server version: 5.6.19-v1-log MySQL Community Server (GPL)Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || #bak_database || mysql || performance_schema || test |+--------------------+5 rows in set (0.02 sec)mysql> create database test_docker;Query OK, 1 row affected (0.06 sec)mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || #bak_database || mysql || performance_schema || test || test_docker |+--------------------+6 rows in set (0.00 sec)
在slave1中創(chuàng)建一個數(shù)據(jù)庫test_docker
[root@bogon ~]# docker exec -it mysql-slave bashError response from daemon: No such container: mysql-slave[root@bogon ~]# docker exec -it mysql-slave1 bashroot@375eabd4c598:/# mysql -uroot -pEnter password:Welcome to the MySQL monitor. Commands end with ; or /g.Your MySQL connection id is 4Server version: 5.6.19-v1-log MySQL Community Server (GPL)Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || #bak_database || mysql || performance_schema || test |+--------------------+5 rows in set (0.00 sec)
通過以上的信息說明master與slave是數(shù)據(jù)隔離的，所以我們可以通過docker創(chuàng)建N個mysql容器， 然后就能以很小的代價就能學(xué)習(xí)《高可用MySQL》中的數(shù)據(jù)模型 再也不用發(fā)愁機器不夠用。
后續(xù)操作
登錄到master容器
[root@bogon ~]# docker exec -it mysql-master bashroot@1651d1cab219:/#
怎么查看容器的操作系統(tǒng)環(huán)境
一般就是
uname -a cat /etc/pro cat /etc/lsb-release
很幸運我們的容器是ubuntu14.04
root@1651d1cab219:/# cat /etc/lsb-releaseDISTRIB_ID=UbuntuDISTRIB_RELEASE=14.04DISTRIB_CODENAME=trustyDISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
但是執(zhí)行 apt-get install時候卻什么也裝不了
需要更改
cd /etc/apt/
沒有 vi vim ee 編輯器 只好追加內(nèi)容到 sources.list
echo deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse >> sources.list echo deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse >> sources.list echo deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse >> sources.list echo deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse >> sources.list echo deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse >> sources.list echo deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse >> sources.list echo deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse >> sources.list echo deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse >> sources.list echo deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse >> sources.list echo deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse >> sources.list
然后 更新源
apt-get updateapt-get install vim
然后通過vim把sources.list文件的前兩行刪除掉 再重新update一下。
apt-get update
安裝一個網(wǎng)絡(luò)工具獲取ip
apt-get install net-tools
獲取到master的ip地址
root@1651d1cab219:/# ifconfigeth0 Link encap:Ethernet HWaddr 02:42:ac:11:00:02 inet addr:172.17.0.2 Bcast:0.0.0.0 Mask:255.255.0.0 inet6 addr: fe80::42:acff:fe11:2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15119 errors:0 dropped:0 overruns:0 frame:0 TX packets:12633 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:34197557 (34.1 MB) TX bytes:897732 (897.7 KB)lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:22 errors:0 dropped:0 overruns:0 frame:0 TX packets:22 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2212 (2.2 KB) TX bytes:2212 (2.2 KB)
slave也需要這么做
還有一種方法
可以創(chuàng)建Dockerfile依賴mysql鏡像創(chuàng)建一個新的鏡像。
上訴命令通過RUN來執(zhí)行創(chuàng)建的新容器會有安裝的軟件。
最后通過slave的docker連接到master的容器mysql服務(wù)器上
master的服務(wù)器mysql賬號root賦值權(quán)限
mysql> grant all privileges on *.* to root@'%' identified by '';Query OK, 0 rows affected (0.02 sec)mysql> flush privileges;Query OK, 0 rows affected (0.02 sec)
slave服務(wù)器執(zhí)行如下命令
[root@bogon ~]# mysql -uroot -p -h 172.17.0.2Enter password:Welcome to the MariaDB monitor. Commands end with ; or /g.Your MySQL connection id is 6Server version: 5.6.19-v1-log MySQL Community Server (GPL)Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.MySQL [(none)]>
在master上將test_docker數(shù)據(jù)庫刪除，看slave的終端是否也不顯示已刪除的庫
master操作
mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || #bak_database || mysql || performance_schema || test || test_docker |+--------------------+6 rows in set (0.00 sec)mysql> drop database test_docker;Query OK, 0 rows affected (0.06 sec)mysql> show databases;+--------------------+| Database |+--------------------+| information_schema || #bak_database || mysql || performance_schema || test |+--------------------+5 rows in set (0.00 sec)
slave操作
MySQL [(none)]> show databases;+--------------------+| Database |+--------------------+| information_schema || #bak_database || mysql || performance_schema || test |+--------------------+5 rows in set (0.00 sec)MySQL [(none)]>
以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持VEVB武林網(wǎng)。
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