docker run -itd --name mysql -p 3306:3306 --privileged=true centos:7.9.2009 /usr/sbin/init

docker exec -it 5b28125227d7 /bin/bash
yum install -y vim wget

检查有无安装过mysql 用户组，没有的话创建

groupadd mysql
useradd -r -g mysql mysql

下载安装,从官网安装下载mysql包

cd /usr/local/ 
wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.35-el7-x86_64.tar.gz

解压安装mysql

tar -zxvf mysql-5.7.35-el7-x86_64.tar.gz 

将解压的文件做文件改名

mv mysql-5.7.35-el7-x86_64 mysql

更改mysql 目录下所有文件夹所属的用户组和用户，以及权限

chown -R mysql:mysql /usr/local/mysql
chmod -R 755 /usr/local/mysql

创建mysql相关目录

mkdir -p /data/mysql/{data,logs,tmp}
更改文件夹属性
chown -R mysql.mysql /data/mysql/

创建mysql配置文件my.cnf

vim /etc/my.cnf

# 简单模板如下：

[client]
port = 3306
socket = /data/mysql/tmp/mysql.sock
[mysqld]
user = mysql
basedir = /usr/local/mysql
datadir = /data/mysql/data
port = 3306
socket = /data/mysql/tmp/mysql.sock
pid-file = /data/mysql/tmp/mysqld.pid
tmpdir = /data/mysql/tmp
skip_name_resolve = 1
symbolic-links=0
max_connections = 2000
group_concat_max_len = 1024000
sql_mode = NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
lower_case_table_names = 1
log_timestamps=SYSTEM
character-set-server = utf8
interactive_timeout = 1800
wait_timeout = 1800
max_allowed_packet = 32M
binlog_cache_size = 4M
sort_buffer_size = 2M
read_buffer_size = 4M
join_buffer_size = 4M
tmp_table_size = 96M
max_heap_table_size = 96M
max_length_for_sort_data = 8096
#logs
server-id = 1003306
log-error = /data/mysql/logs/error.log
slow_query_log = 1
slow_query_log_file = /data/mysql/logs/slow.log
long_query_time = 3
log-bin = /data/mysql/logs/binlog
binlog_format = row
expire_logs_days = 15
log_bin_trust_function_creators = 1
relay-log = /data/mysql/logs/relay-bin
relay-log-recovery = 1
relay_log_purge = 1
#innodb
innodb_file_per_table = 1
innodb_log_buffer_size = 16M
innodb_log_file_size = 256M
innodb_log_files_in_group = 2
innodb_io_capacity = 2000
innodb_io_capacity_max = 4000
innodb_flush_neighbors = 0
innodb_flush_method = O_DIRECT
innodb_autoinc_lock_mode = 2
innodb_read_io_threads = 8
innodb_write_io_threads = 8
innodb_buffer_pool_size = 2G

配置mysql.server

cd /usr/local/mysql/support-files
cp mysql.server /etc/init.d/mysql
vim /etc/init.d/mysql

# 修改目录位置

basedir=/usr/local/mysql
datadir=/data/mysql/data

# 注册开机启动服务

chkconfig --add mysql
chkconfig --list

添加环境变量

echo "PATH=$PATH:/usr/local/mysql/bin " >> /etc/profile 
source /etc/profile

初始化mysql

/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data
yum install -y libaio numactl

# 临时密码保存在errlog中 获取临时密码

more /data/mysql/logs/error.log |grep password

启动mysql服务，并修改密码

# 启动mysql服务

service mysql start
yum install initscripts

# 使用初始密码登录mysql服务 并修改密码

mysql -uroot -p 
mysql> alter user 'root'@'localhost' identified by '123456';
mysql> flush privileges;

/usr/local/mysql/support-files/mysql.server start
ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql
service mysql restart
mysql -u root -p
yum install libncurses*

开启远程连接mysql权限

mysql -u root -p
mysql> use mysql;
mysql> select 'host' from user where user='root';
mysql> update user set host = '%' where user ='root';
mysql> flush privileges;
mysql> select 'host' from user where user='root';