Docker学习系列从零开始之基于SSH镜像制作mysql的镜像【六】

​1、启动centos6.5-ssh镜像​ 在宿主机器上执行如下命令：

docker run -d -P -v /var/lib/mysql:/var/lib/mysql  --name=test  centos6.5-ssh

接着在执行如下命令：

docker ps

​2、使用SSH工具登陆当前启动的镜像​

​​

接着按步骤执行如下命令： 1、安装mysql

yum install wget -y

wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

rpm -ivh mysql-community-release-el7-5.noarch.rpm

yum install mysql-community-server

2、配置mysql

mysql_install_db --user=mysql --ldata=/var/lib/mysql

3、开启mysql

mysqld_safe

4、配置root用户密码、赋予root远程连接权限（ ​不要把 ​

​mysql>这个拷贝进去执行​

）

mysql -u root

mysql> UPDATE mysql.user SET Password = PASSWORD('123456') WHERE User = 'root';

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

mysql> flush privileges;

5、更改mysql配置，使服务忽略大小写、以utf8传输等

vi /etc/my.cnf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
[client]
default-character-set=utf8


[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
lower_case_table_names=1
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
max_allowed_packet=20M
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
character-set-server=utf8
init_connect='SET NAMES utf8'


sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysql]
default-character-set=utf8


# Disabling symbolic-links is recommended to prevent assorted security risks
#symbolic-links=0


# Recommended in standard MySQL setup
#sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES


[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

6、更改启动脚本

vi /run.sh

#!/bin/bash
mkdir /var/run/mysqld
chgrp mysql /var/run/mysqld/
chmod g+w /var/run/mysqld/
/usr/sbin/sshd
mysqld_safe

7、更改启动脚本权限

接着执行exit退出当前的ssh页面 8、提交当前容器的修改

docker commit ffb76a0db835 centos6.5-mysql-sshd-1.1

到此我们的mysql的镜像已经制作完成了，但是我们的mysql镜像的数据库只能在镜像中访问，因为我们还没有开启端口的映射。 ​3、使用centos6.5-mysql-sshd-1.1制作完整镜像​

首先创建一个存放完整版mysql镜像的文件夹

cd docker

mkdir mysqlInfo

cd mysqlInfo

touch Dockerfile

vi Dockerfile

接着修改Dockerfile文件如下：

FROM centos6.5-mysql-sshd-1.1
           MAINTAINER linzf <282245889@qq.com>
           EXPOSE 3306
           CMD ["/run.sh"]

最后创建当前的centos6.5-mysql-sshd-1.2版的数据库镜像:

docker build -t "centos6.5-mysql-sshd-1.2" .

docker images

可以看到我们的镜像已经创建成功了（上面已经将1.1版的镜像给删除了），接着我们启动我们的镜像。

docker run -d -P -v /var/lib/mysql:/var/lib/mysql --name=mysql2 centos6.5-mysql-sshd-1.2

docker images

可以看到我们的数据库已经启动，并将数据库的端口做了映射将镜像的3306端口映射到了宿主机器的32820的端口，此时我们的数据库已经可以直接访问了， ​若是我们重复执行该镜像且给将镜像一个新的别名，那么我们将会发现我们的数据库永远只会连接第一个镜像，后面的镜像的数据库我们是连接不上的。​

docker以自定义端口的方式启动该镜像

docker run -d -p 13306:3306  -v /var/lib/mysql:/var/lib/mysql --name=mysql2 centos6.5-mysql-sshd-1.2

docker ps

可以看到我们的镜像的3306端口已经映射到宿主机器的13306端口了 ​参考网文如下：​

​