Centos7.*系统优化

#!/bin/bash

#centos7通用脚本

echo "centos7 初始化脚本"

yum install -y lrzsz yum-utils device-mapper-persistent-data lvm2 git

yum install -y epel-release

yum install -y python-pip git

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum install -y docker-ce

pip install docker-compose -i https://pypi.tuna.tsinghua.edu.cn/simple

#curl -L https://github.com/docker/compose/releases/download/1.23.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

function port_set(){

echo "关闭selinux和防火墙"

setenforce 0

sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config

firewall-cmd --zone=public --add-port=80/tcp --permanent

systemctl restart firewalld

systemctl start docker

systemctl enable docker

}

function sys_config(){

echo "<<<<<<<<<<<<<<<<<<<<<<添加系统配置>>>>>>>>>>>>>>>>>>>>"

sed -i '/#seclover head/, /#seclover tail/d' /etc/security/limits.conf

cat >> /etc/security/limits.conf <<'EOF'

#seclover head/

* soft nofile 65536

* hard nofile 131072

* soft nproc 2048

* hard nproc 4096

#seclover tail

EOF

sed -i '/#centos head/, /#centos tail/d' /etc/sysctl.conf

cat >> /etc/sysctl.conf <<"EOF"

#centos head/

net.ipv4.tcp_tw_reuse = 1

net.ipv4.tcp_tw_recycle = 1

fs.file-max = 102400

vm.max_map_count=262144

#centos tail

EOF

sysctl -p

source /etc/profile

}

function main(){

    port_set

    sys_config

}

main