Docker中怎么构建MariaDB镜像

基于commit命令方式创建

docker的安装

[root@test01 ~]# yum install docker[root@test01 ~]# systemctl enable docker[root@test01 ~]# systemctl start docker

下载本地镜像

[root@test01 ~]# docker pull centos:7.4.1708[root@test01 ~]# docker imagesREPOSITORY          TAG                 IMAGE ID            CREATED             SIZEdocker.io/centos    7.4.1708            3afd47092a0e        3 months ago        196.6 MB

创建交互型容器

[root@test01 ~]# docker run -it --name="mysql_server" centos /bin/bash

安装mariadb服务

[root@e8126d0481d2 /]# yum -y install mariadb-server net-tools

初始化mariadb

[root@e8126d0481d2 /]# mysql_install_db --user=mysql

后台启动mariadb服务

[root@e8126d0481d2 /]# mysqld_safe &[1] 114[root@e8126d0481d2 /]#180210 13:45:27 mysqld_safe Logging to '/var/log/mariadb/mariadb.log'.180210 13:45:27 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql[root@e8126d0481d2 /]# netstat -tunplActive Internet connections (only servers)Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    tcp        0      0 0.0.0.0:3306            0.0.0.0:*               LISTEN      -

创建mariadb登录密码，并可以指定ip登录

[root@e8126d0481d2 /]# mysqladmin -u root password '123456'[root@e8126d0481d2 /]# mysql -u root -pEnter password:MariaDB [(none)]> show databases;MariaDB [(none)]> use mysql;MariaDB [mysql]> select Host from user where user='root';MariaDB [mysql]> grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;MariaDB [mysql]> update user set password=password('123456') where user='root' and host='e8126d0481d2';MariaDB [mysql]> flush privileges;MariaDB [mysql]> exit

容器登录验证

[root@e8126d0481d2 /]# mysql -u root -h 172.17.0.2 -pEnter password:MariaDB [(none)]> exit

创建容器启动脚本

[root@e8126d0481d2 ~]# cat run.sh#!/bin/shmysqld_safe

创建镜像

[root@test01 ~]# docker ps -aCONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMESe8126d0481d2        centos              "/bin/bash"         11 minutes ago      Exited (0) 8 seconds ago                       mysql_server[root@test01 ~]# docker commit mysql_server mariadb:1.0

创建容器

[root@test01 ~]# docker run -d -p 13306:3306 mariadb:1.0 /root/run.sh[root@test01 ~]# docker psCONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                     NAMESeed3e88a1261        mariadb:1.0         "mysqld_safe"       4 seconds ago       Up 3 seconds        0.0.0.0:13306->3306/tcp   romantic_hamilton

主机登录验证

[root@test01 ~]# yum -y install mariadb[root@test01 ~]# mysql -u root --port=13306 -pMariaDB [(none)]>

基于Dockerfile方式创建

设置创建目录和文件[root@test01 ~]# mkdir mariadb_dockerfile && cd mariadb_dockerfile[root@test01 mariadb_dockerfile]# touch db_init.sh[root@test01 mariadb_dockerfile]# touch run.sh编辑Dockerfile等文件Dockerfile[root@test01 mariadb_dockerfile]# cat Dockerfile#使用的基础镜像FROM centos:7.4.1708#添加作者信息MAINTAINER liuxin 842887233@qq.com#安装mariadb数据库RUN yum -y install mariadb-server#设置环境变量，便于管理ENV MARIADB_USER rootENV MARIADB_PASS 123456#让容器支持中文ENV LC_ALL en_US.UTF-8#初始化数据库ADD db_init.sh /root/db_init.shRUN chmod 775 /root/db_init.shRUN /root/db_init.sh#导出端口EXPOSE 3306#添加启动文件ADD run.sh /root/run.shRUN chmod 775 /root/run.sh#设置默认启动命令CMD ["/root/run.sh"]db_init.sh[root@test01 mariadb_dockerfile]# cat db_init.sh#!/bin/bashmysql_install_db --user=mysqlsleep 3mysqld_safe &sleep 3#mysqladmin -u "$MARIADB_USER" password "$MARIADB_PASS"mysql -e "use mysql; grant all privileges on *.* to '$MARIADB_USER'@'%' identified by '$MARIADB_PASS' with grant option;"h=$(hostname)mysql -e "use mysql; update user set password=password('$MARIADB_PASS') where user='$MARIADB_USER' and host='$h';"mysql -e "flush privileges;"run.sh[root@test01 mariadb_dockerfile]# cat run.sh#!/bin/bashmysqld_safe

创建镜像

[root@test01 mariadb_dockerfile]# docker build -t liuxin/centos-mariadb:v1 ./

创建容器

[root@test01 mariadb_dockerfile]# docker run -d -p 13306:3306 liuxin/centos-mariadb:v1 /root/run.sh[root@test01 mariadb_dockerfile]# docker psCONTAINER ID        IMAGE                      COMMAND             CREATED             STATUS              PORTS                     NAMES7743527ac603        liuxin/centos-mariadb:v1   "/root/run.sh"      5 seconds ago       Up 3 seconds        0.0.0.0:13306->3306/tcp   nostalgic_mirzakhani

登录验证

[root@test01 mariadb_dockerfile]# mysql -uroot -h 127.0.0.1 --port=13306 -pEnter password:Welcome to the MariaDB monitor.  Commands end with ; or \g.Your MariaDB connection id is 1Server version: 5.5.56-MariaDB MariaDB ServerCopyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MariaDB [(none)]> exit