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docker MySQL数据同步

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大家好,今天分享一下docker的一个实战

我们使用docker 实现MySQL 的数据同步

搜索mysql 镜像

[root@localhost ~]# docker search  mysql
NAME                             DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
mysql                            MySQL is a widely used, open-source relation…   12222     [OK]       
mariadb                          MariaDB Server is a high performing open sou…   4691      [OK]       
mysql/mysql-server               Optimized MySQL Server Docker images. Create…   907                  [OK]
percona                          Percona Server is a fork of the MySQL relati…   571       [OK]       
phpmyadmin                       phpMyAdmin - A web interface for MySQL and M…   465       [OK]       
mysql/mysql-cluster              Experimental MySQL Cluster Docker images. Cr…   93                   
centos/mysql-57-centos7          MySQL 5.7 SQL database server                   92                   
bitnami/mysql                    Bitnami MySQL Docker Image                      64                   [OK]
databack/mysql-backup            Back up mysql databases to... anywhere!         56                   
circleci/mysql                   MySQL is a widely used, open-source relation…   25                   
ubuntu/mysql                     MySQL open source fast, stable, multi-thread…   24                   
mysql/mysql-router               MySQL Router provides transparent routing be…   23                   
centos/mysql-56-centos7          MySQL 5.6 SQL database server                   22                   
arey/mysql-client                Run a MySQL client from a docker container      20                   [OK]
google/mysql                     MySQL server for Google Compute Engine          19                   [OK]
mysqlboy/mydumper                mydumper for mysql logcial backups              3                    
mysqlboy/docker-mydumper         docker-mydumper containerizes MySQL logical …   3                    
bitnami/mysqld-exporter                                                          2                    
ibmcom/mysql-s390x               Docker image for mysql-s390x                    1                    
mirantis/mysql                                                                   0                    
mysql/mysql-operator             MySQL Operator for Kubernetes                   0                    
mysqlboy/elasticsearch                                                           0                    
mysqleatmydata/mysql-eatmydata                                                   0                    
cimg/mysql                                                                       0                    
ibmcom/tidb-ppc64le              TiDB is a distributed NewSQL database compat…   0                    
[root@localhost ~]# 

拉取mysql 镜像 (我们在这里指定5.7这个版本)

[root@localhost ~]# docker pull mysql:5.7
5.7: Pulling from library/mysql
72a69066d2fe: Pull complete 
93619dbc5b36: Pull complete 
99da31dd6142: Pull complete 
626033c43d70: Pull complete 
37d5d7efb64e: Pull complete 
ac563158d721: Pull complete 
d2ba16033dad: Pull complete 
0ceb82207cd7: Pull complete 
37f2405cae96: Pull complete 
e2482e017e53: Pull complete 
70deed891d42: Pull complete 
Digest: sha256:f2ad209efe9c67104167fc609cca6973c8422939491c9345270175a300419f94
Status: Downloaded newer image for mysql:5.7
docker.io/library/mysql:5.7
[root@localhost ~]# 

查看本地镜像

[root@localhost ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
tomcat04      1.0       12b32b1a124d   18 hours ago   685MB
nginx         latest    605c77e624dd   2 months ago   141MB
tomcat        9.0       b8e65a4d736d   2 months ago   680MB
tomcat        latest    fb5657adc892   2 months ago   680MB
mysql         5.7       c20987f18b13   2 months ago   448MB
hello-world   latest    feb5d9fea6a5   5 months ago   13.3kB
centos        latest    5d0da3dc9764   5 months ago   231MB
[root@localhost ~]# 

运行一下mysql 容器,做内外网的端口映射,做容器与Linux 主机上的挂载 ,然后给它设密码123456 ,后面加上操作的镜像名

[root@localhost ~]# docker run -d -p 3310:3306 -v /home/mysql/conf:/etc/mysql/conf.d -v /home/mysql/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 --name mysql01 mysql:5.7 
f3248538d690f67fa057b0b9e00dd060b1ce40378171de0a9f3d9ebd478111d2
[root@localhost ~]# 

显示mysql 容器正在运行中

[root@localhost ~]# docker ps
CONTAINER ID   IMAGE          COMMAND                  CREATED         STATUS         PORTS                                                  NAMES
f3248538d690   mysql:5.7      "docker-entrypoint.s…"   4 minutes ago   Up 4 minutes   33060/tcp, 0.0.0.0:3310->3306/tcp, :::3310->3306/tcp   mysql01
6d6fa6a4c6d7   5d0da3dc9764   "/bin/bash"              25 hours ago    Up 25 hours                                                           nice_panini
[root@localhost ~]# 

使用数据库管理工具sql yog 连接我们的数据库

在这里插入图片描述

查看服务器ip地址

[root@localhost ~]# ifconfig  ens33
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.12  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::617f:ef93:80d4:e14e  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:87:af:a6  txqueuelen 1000  (Ethernet)
        RX packets 2460532  bytes 2826366757 (2.6 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1198876  bytes 243212283 (231.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@localhost ~]# 

这里,
命名为容器,
地址:192.168.1.12 (服务器IP地址)
密码:123456 (我们刚才在docker mysql 容器当中设置的密码)
端口:3310 (这是我们刚才做的端口)

在这里插入图片描述

连接成功:

在这里插入图片描述

就是说,我们使用现在已经可以通过使用数据库管理工具sql yog 连接与使用我们的数据库

这个效果和实际本质与我们平时使用的数据库是一样的

在Linux主机上查看/home 下的文件 (注意,多了一个mysql)

[root@localhost ~]# cd /home/
[root@localhost home]# ls
456.txt  admin  ceshi  daqing  mysql  zhangsan
[root@localhost home]# 

映射的配置文件与数据文件

[root@localhost home]# cd mysql/
[root@localhost mysql]# ls
conf  data
[root@localhost mysql]# 

这就是我们的数据文件

[root@localhost mysql]# cd data/
[root@localhost data]# ls
auto.cnf    ca.pem           client-key.pem  ibdata1      ib_logfile1  mysql               private_key.pem  server-cert.pem  sys
ca-key.pem  client-cert.pem  ib_buffer_pool  ib_logfile0  ibtmp1       performance_schema  public_key.pem   server-key.pem
[root@localhost data]# 

正式连接数据库 (192.168.1.12)

在这里插入图片描述

在我们MySQL中加一个库

在这里插入图片描述

在Linux上 ,在映射目录的数据文件多了一个帅哥

[root@localhost data]# ls
auto.cnf    ca.pem           client-key.pem  ibdata1      ib_logfile1  mysql               private_key.pem  server-cert.pem  shuaige
ca-key.pem  client-cert.pem  ib_buffer_pool  ib_logfile0  ibtmp1       performance_schema  public_key.pem   server-key.pem   sys
[root@localhost data]# 

删除mysql这个容器

[root@localhost data]# docker rm -f mysql01 
mysql01
[root@localhost data]# 

映射的数据文件还在,

[root@localhost data]# ls
auto.cnf    ca.pem           client-key.pem  ibdata1      ib_logfile1  mysql               private_key.pem  server-cert.pem  shuaige
ca-key.pem  client-cert.pem  ib_buffer_pool  ib_logfile0  ibtmp1       performance_schema  public_key.pem   server-key.pem   sys
[root@localhost data]# 

即,在mysql容器删除之后,数据没有丢失,实现了持久化

这就是docker 容器数据卷的好处

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