一键部署mysql（直接坐等结束就完事了！！）

Posted 2021-09-11 老张学coding

将安装包(mysql-boost-5.7.20.tar.gz)拖至/opt目录下，编一个脚本文件，然后source执行脚本，等脚本执行完成，
即可使用mysql -u root -p点击回车（无密码，在Xshell中方如果显示无mysql命令的话Xshell重新连接即可）即可进入。 

注意：先将安装包拖到/mnt目录下，然后执行脚本，此脚本没设置mysql密码，直接回车，在Xshell中方如果显示无mysql命令的话Xshell重新连接即可
脚本：

#!/bin/bash
echo -e "\\033[31m =====正在验证当前为仅主机还是NAT模式===== \\033[0m"
ping -c1 -W1 www.baidu.com &> /dev/null
if [ $? -eq 0 ];then echo -e "\\033[31m 检测当前为NAT模式，为您配置在线yum源 \\033[0m"
mkdir -p /etc/yum.repos.d/repo.bak
  
mv -f /etc/yum.repos.d/* /etc/yum.repos.d/repo.bak &> /dev/null
  
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo &> /dev/null
  
yum clean all &> /dev/null
yum list &> /dev/null
echo -e "\\033[31m 在线源已配置完成 \\033[0m"
  
else
echo -e "\\033[31m 检测当前为仅主机模式，为您配置本地yum源 \\033[0m"
mount /dev/sr0 /mnt &> /dev/null
cd /etc/yum.repos.d/
mkdir -p /etc/yum.repos.d/repo.bak
  
mv -f /etc/yum.repos.d/* /etc/yum.repos.d/repo.bak &> /dev/null
  
echo '[local]
name=local
baseurl=file:///mnt
enabled=1
gpgcheck=0' > /etc/yum.repos.d/local.repo
yum clean all &> /dev/null
yum makecache &> /dev/null
  
df -h | grep "/mnt"
if [ $? -ne 0 ];then
echo -e "\\033[31m 检测当前为仅主机模式，但光盘未连接！ \\033[0m"
else
echo -e "\\033[31m 本地yum源已配置完成 \\033[0m"
fi
fi
  
#关闭系统防火墙和安全机制
systemctl stop firewalld
systemctl disable firewalld
setenforce 0
  
echo -e "\\033[31m 检查安装包是否正确，请耐心等待 \\033[0m"
ls /opt | egrep "^mysql-boost-5.7.20.tar.gz$"
if [ $? -eq 0 ];then
echo -e "\\033[31m 接下来进入正式配置，请耐心等待 \\033[0m"
else
echo -e "\\033[31m 请准备正确安装包mysql-boost-5.7.20.tar.gz \\033[0m"
exit
fi
  
  
#安装Mysql环境依赖包
yum -y install \\
ncurses \\
ncurses-devel \\
bison \\
cmake \\
gcc \\
gcc-c++ \\
make
  
#创建程序用户，便于准确控制访问用户
useradd -M -s /sbin/nologin  mysql
  
#编译安装
cd /opt
tar xzvf mysql-boost-5.7.20.tar.gz -C /opt
  
cd /opt/mysql-5.7.20/
cmake \\
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \\
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \\
-DSYSCONFDIR=/etc \\
-DSYSTEMD_PID_DIR=/usr/local/mysql \\
-DDEFAULT_CHARSET=utf8  \\
-DDEFAULT_COLLATION=utf8_general_ci \\
-DWITH_EXTRA_CHARSETS=all \\
-DWITH_INNOBASE_STORAGE_ENGINE=1 \\
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \\
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \\
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \\
-DMYSQL_DATADIR=/usr/local/mysql/data \\
-DWITH_BOOST=boost \\
-DWITH_SYSTEMD=1
  
#编译及安装
make && make install
  
#修改mysql 配置文件
echo '[client]
port = 3306
socket=/usr/local/mysql/mysql.sock
  
[mysqld]
user = mysql
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port = 3306
character-set-server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket=/usr/local/mysql/mysql.sock
bind-address = 0.0.0.0
skip-name-resolve
max_connections=2048
default-storage-engine=INNODB
max_allowed_packet=16M
server-id = 1
  
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES' > /etc/my.cnf
  
  
#更改mysql安装目录和配置文件的属主属组
chown -R mysql:mysql /usr/local/mysql/
chown mysql:mysql /etc/my.cnf
  
#设置路径环境变量
echo "export PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib">> /etc/profile
source /etc/profile
  
#初始化数据库
cd /usr/local/mysql/bin/
./mysqld \\
--initialize-insecure \\
--user=mysql \\
--basedir=/usr/local/mysql \\
--datadir=/usr/local/mysql/data
  
#添加mysqld系统服务
cp /usr/local/mysql/usr/lib/systemd/system/mysqld.service /usr/lib/systemd/system/
  
  
systemctl daemon-reload
systemctl start mysqld.service
systemctl enable mysqld