docker-compose安装mariadb数据库

环境描述

系统：centos7.8

组件	版本
docker	20.10.6
docker-compose	v2.2.2
mariadb	10.5.10

docker安装传送门:https://www.cnblogs.com/inclme/p/15829349.html
docker-compose安装传送门:https://www.cnblogs.com/inclme/p/15829558.html

创建持久化目录

[root@localhost ~]# mkdir -p /root/component/mariadb/{data,conf}

创建mariadb.cnf和my.cnf

 [root@localhost ~]# docker run --name=mariadb -d mariadb:10.5.10
Unable to find image 'mariadb:10.5.10' locally
10.5.10: Pulling from library/mariadb
c549ccf8d472: Pull complete 
26ea6552a462: Pull complete 
329b1f41043f: Pull complete 
9f8d09317d80: Pull complete 
2bc055a5511d: Pull complete 
e989e430508e: Pull complete 
201c98fa16f6: Pull complete 
cc09fec0bce1: Pull complete 
1c9b9043bdda: Pull complete 
f0e596ee38c5: Pull complete 
Digest: sha256:cf656762c1727a4e08d838aea95973767cb7a9f7151532f38657189ae57051cc
Status: Downloaded newer image for mariadb:10.5.10
72f77bf15b6fcc952a859c51aa6c9374a4301390fe87801c68b6a821ee4878da

[root@localhost ~]# docker cp mariadb:/etc/mysql/mariadb.cnf /root/component/mariadb/conf

[root@localhost conf]# cat my.cnf
# mariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 0. "/etc/mysql/my.cnf" symlinks to this file, reason why all the rest is read.
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# If you are new to MariaDB, check out https://mariadb.com/kb/en/basic-mariadb-articles/

#
# This group is read both by the client and the server
# use it for options that affect everything
#
[mysqld]
skip-grant-tables
[client-server]
# Port or socket location where to connect
# port = 3306
socket = /run/mysqld/mysqld.sock
max_connections=1000
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/

这里我最大连接数修改为1000，默认是100
删除临时mariadb服务

[root@localhost mariadb]# docker rm -f mariadb
mariadb

创建docker-compose文件

[root@localhost mariadb]# cat docker-compose.yml 
version: '3'
services:
  rebbitmq:
    restart: always
    image: mariadb:10.5.10
    container_name: mariadb
    hostname: mariadb
    ports:
      - 3306:3306
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      TZ: Asia/Shanghai
    volumes:
      - /etc/localtime:/etc/localtime
      - /root/component/mariadb/data:/var/lib/mysql
      - /root/component/mariadb/conf/mariadb.cnf:/etc/mysql/mariadb.cnf
      - /root/component/mariadb/conf/my.cnf:/etc/mysql/my.cnf

[root@localhost mariadb]# docker-compose up -d
[+] Running 1/1
 ⠿ Container mariadb  Started     

使用链接工具测试是否正常并使用sql：show VARIABLES like '%max_connections%'查看配置文件是否生效