Rapid deployment using the docker container mysql

Use docker rapid deployment mysql container

1. Installation docker

   # 安装Docker-CE
   yum install -y yum-utils device-mapper-persistent-data lvm2
   
   # 增加最新版本的Docker安装仓库
   yum-config-manager --add-repo \
           https://download.docker.com/linux/centos/docker-ce.repo
   
   # 安装Docker-CE版本
   sudo yum install -y docker-ce docker-ce-cli containerd.io
   
   # 启动docker
   sudo systemctl enable docker
   
   # 允许开机启动
   sudo systemctl start docker

2. Mysql download image files

   # 查看所需镜像版本，这里是查看mysql 5.6版本
   # 默认会下载5.6里面最新的版本
   docker search mysql:5.6
   
   # 下载对应版本的mysql，是用mysql:版本号
   docker pull mysql:5.6

3. Profiles

   [client]
   default-character-set=utf8
   
   [mysqld]
   character-set-server=utf8
   default-storage-engine=INNODB
   collation-server=utf8_general_ci
   pid-file  = /var/run/mysqld/mysqld.pid
   socket   = /var/run/mysqld/mysqld.sock
   datadir   = /var/lib/mysql
   log-error = /var/log/mysql/error.log
   
   [mysql]
   default-character-set=utf8

   After storage path, you can modify, amend remember the path to change the startup parameters of the container

   /home/docker-conf/mysql/cnf/my.cnf

4. Start command vessel

   docker run -it \
   --name=mysql \
   # 如果更改了存放路径，记得修改下面的配置参数 \
   -v /home/docker-conf/mysql/cnf/:/etc/mysql/conf.d \ 
   -e MYSQL_ROOT_PASSWORD=123456 \
   # --ip 127.0.0.1 \
   -p 3306:3306 \
   -d mysql:5.6 \
   /bin/bash

   Interpretation of parameters

   --name custom name, two-

   -v file mount directory

   :In front of the host computer is a directory, the directory is behind the container

   -e set the initial password mysql, but seemingly useless

   -p port mapping

   :Is mapped to a port on the front of the host, it is behind the container port

   Such as mysql default port is 3306, meaning that the mapping mysql container port 3306 to port 3306 of the host,

   Mysql container 3306 to be accessed to access the host port via

   -d represents the background

   The latter is the image name and version number

5. Into the interior of the container

   docker attach mysql
   # 或者
   docker exec -it 容器名或者container ID

• Mysql command execution

  usermod -d /var/lib/mysql/ mysql

• Start mysql

  service mysql start 

• Use mysql

  mysql -uroot -p
  提示输入密码。直接回车.

Other commands

Because the Container ID is achieved by a hash algorithm, so that under normal circumstances is unique ID for each container, in order to facilitate the operation, the former will be able to take several, no value, and the same number of other containers taken long can be repeated

# 比如
container ID        name   
a12345              mysql01
a11234              centos7.6                 
b12345           mysql02
b23456              centos6.8
c23456          redis                  

# 可以这么来取
docker start a12
# 也可以这样
docker start mysql01
# 更简单的
docker start c # 因为c开头的就一个

• View container running

  docker ps

• View all containers (including not running)

  docker ps -a

• Start container

  docker start 容器名或container ID

• Stop the container

  docker stop 容器名或container ID

• Delete container

  docker rm container ID
  # 注意：运行的容器一定要先stop，再rm

• View image files

  docker images