博客

CentOS 7初始化

操作系统初始化脚本：

#!/bin/bash
# Desc：系统初始化
os_init () {

hostnamectl set-hostname $name
systemctl stop firewalld
systemctl disable firewalld
setenforce 0
sed -i.bak '/^SELINUX=/c\SELINUX=disabled' /etc/selinux/config

sed -i.bak '/^UUID=/c\UUID="af42de51-8836-44d0-8b20-1ebfa7818bc7"' $nic_name
sed -i '4a\IPADDR=10.1.1.10' $nic_name
sed -i '/^BOOTPROTO="/c\BOOTPROTO="static"' $nic_name
sed -i '5a\DNS2=114.114.114.114' $nic_name
sed -i '5a\DNS1=8.8.8.8' $nic_name
sed -i '5a\GATEWAY=10.1.1.2' $nic_name
sed -i '5a\NETMASK=255.255.255.0' $nic_name	

systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl restart network



if !(rpm -q wget);then
    yum install -y wget
fi
tar -zcPf /etc/yum.repos.d/repo.tar.gz /etc/yum.repos.d/C*.repo
rm -f /etc/yum.repos.d/*.repo
wget -O /etc/yum.repos.d/CentOS-tencent-Base.repo http://mirrors.cloud.tencent.com/repo/centos7_base.repo
yum clean all
yum makecache
}

main () {
nic_name=/etc/sysconfig/network-scripts/ifcfg-ens33
read -p "Host name is:" name
os_init
yum install bash-completion vim net-tools ntp -y

}
main

MySQL5.7安装

MySQL安装脚本：

#!/bin/bash
# Desc：MySQL安装脚本

# 根据版本安装
mysql_install () {
[ -f /etc/my.cnf ] && mv /etc/my.cnf /etc/my.cnf.bak
if ! (id mysql &>/dev/null);then
	useradd -r -s /sbin/nologin mysql
fi
if [ -n "$mysql_glibc" ];then 
    mkdir /usr/local/mysql && tar xf $mysql_glibc.tar.gz -C /usr/local/mysql --strip-components 1
    yum install libaio -y &> /dev/null
fi
if [ -n "$mysql_source" ];then
    mkdir ./$mysql_source 2>/dev/null && tar xf $mysql_source.tar.gz -C ./$mysql_source --strip-components 1 2>/dev/null
    yum -y install cmake ncurses-devel openssl-devel gcc-c++ libaio-devel &> /dev/null
fi
}

# 修改配置文件
mysql_cnf () {
case $mycnf in
ab|AB|a|B)
cat >> /usr/local/mysql/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
port=3306
log-error=/usr/local/mysql/data/master.err
log-bin=/usr/local/mysql/data/binlog
server-id=10
character_set_server=utf8mb4
EOF
;;
gtids|GTIDs|g|G)
cat >> /usr/local/mysql/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
port=3306
log-error=/usr/local/mysql/data/master.err
log-bin=/usr/local/mysql/data/binlog
server-id=10
character_set_server=utf8mb4
gtid-mode=on
log-slave-updates=1
enforce-gtid-consistency
EOF
;;
esac
}



# MySQL设置
mysql_init () {
   cd /usr/local/mysql
   mkdir mysql-files
   chown -R mysql.mysql mysql-files/
   chmod 750 mysql-files/
   chown -R mysql.mysql /usr/local/mysql
   mysql_cnf
   bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data &> /root/pass.txt
   bin/mysql_ssl_rsa_setup --datadir=/usr/local/mysql/data
   cp support-files/mysql.server /etc/init.d/mysql
   echo 'export PATH=$PATH:/usr/local/mysql/bin' >> /etc/profile
   source /etc/profile
   
   service mysql start
   pass=`awk 'NR==7{print $NF}' /root/pass.txt`
   mysqladmin -uroot password '123' -p$pass
    mysql -e "flush privileges;" -uroot -p123

mysql_secure_installation <<EOF
123
No
No
Y
Y
Y
Y
EOF
chkconfig --add mysql
chkconfig mysql on
}

# 安装glibc版本
sql_glibc () {
if [[ $mysql_glibc = *glibc* ]];then
	mysql_init
fi
}

# 安装源码版
sql_source () {
if [[ $mysql_source = mysql* ]];then
   cd ./$mysql_source

   cmake . \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DMYSQL_TCP_PORT=3306 \
-DMYSQL_UNIX_ADDR=/tmp/mysql.sock \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_PARTITION_STORAGE_ENGINE=1 \
-DWITH_FEDERATED_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DEXTRA_CHARSETS=all \
-DDEFAULT_CHARSET=utf8mb4 \
-DDEFAULT_COLLATION=utf8mb4_general_ci \
-DWITH_SSL=system \
-DWITH_BOOST=boost
make && make install
mysql_init
fi
}


# 主调函数
main () {
read -p "解压的MySQL_glibc版本，如mysql-5.7.31-linux-glibc2.12-x86_64，：" mysql_glibc
read -p "解压的MySQL_源码包版本，如mysql-boost-5.7.30，：" mysql_source
read -p "需要搭建哪种主从复制，如ab | GTIDs |  ：" mycnf

mysql_install
sql_glibc
sql_source
}
main

MySQL5.6安装

使用脚本安装MySQL并初始化：

• MySQL在安全配置的时候设置密码

#!/bin/bash
read -p "请输入需要安装的MySQL源码包,如mysql-5.6.33:" mysql_source

mkdir ./$mysql_source && tar xf $mysql_source.tar.gz -C ./$mysql_source --strip-components 1

if !(id mysql &> /dev/null);then
   useradd -r -s /sbin/nologin -M mysql
fi
[ -f /etc/my.cnf ] && mv /etc/my.cnf /etc/my.cnf.bak



# 安装依赖
 yum -y install cmake bison-devel ncurses-devel libaio-devel

# 配置+编译安装
cd $mysql_source/
cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DSYSCONFDIR=/etc \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_PARTITION_STORAGE_ENGINE=1 \
-DEXTRA_CHARSETS=all \
-DDEFAULT_CHARSET=utf8mb4 \
-DDEFAULT_COLLATION=utf8mb4_general_ci \
-DWITH_SSL=bundled
make && make install

# 将MySQL的配置文件拷贝一份到/etc目录下
if [ -d /usr/local/mysql ];then
   cd /usr/local/mysql
   cp /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf

# 授权并初始化MySQL
   chown -R mysql:mysql /usr/local/mysql
   /usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql
fi
#安全配置服务、自启动和环境变量
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
echo 'export PATH=$PATH:/usr/local/mysql/bin' >> /etc/profile
source /etc/profile
service mysqld start
chkconfig --add mysqld
chkconfig mysqld on

# 对MySQL进行安全配置，删除匿名用户，利用expect自动交互套件执行
if ! (rpm -q expect &> /dev/null);then
yum -y install expect
fi

/usr/bin/expect <<-EOF
set timeout 20
spawn mysql_secure_installation
expect {
 "enter for none" { send "\r"; exp_continue }
 " password:" { send "123\r"; exp_continue  }
 "Y/n"  { send "Y\r"; exp_continue }
 "Cleaning up" { send "\r"}
}
expect eof
EOF