#!/usr/bin/bash

set -e
color(){
    unset c
    declare -A c=([Error]=31 [Success]=32 [Warning]=33 [Info]=34)
    printf "\033[${c[$1]}m%-10s%-10s %-30s\033[0m\n" "[`date +%T`]" "($1)" "$2"
    sleep 0.5
}

static_addr(){
ifname=$(ip -f inet a | awk '/^2/{print $2}')
ifname=$(echo ${ifname/:/})
ipaddr=$(ip -f inet a show dev $ifname | awk '/inet/{print $2}' | awk -F'/' '{print $1}')
prefix=$(ip -f inet a show dev $ifname | awk '/inet/{print $2}' | awk -F'/' '{print $2}')
gateway=$(ip r |awk '/default/{print $3}')
cat > /etc/sysconfig/network-scripts/ifcfg-$ifname <<EOF
[connection]
id=${ifname}
uuid=`uuidgen`
type=ethernet
autoconnect-priority=-999
interface-name=${ifname}
timestamp=1676740817

[ethernet]

[ipv4]
method=manual
address1=${ipaddr}/${prefix},${gateway}
dns=223.5.5.5

[ipv6]
method=auto
addr-gen-mode=eui64

[proxy]

EOF
nmcli c reload
nmcli c up ${ifname}
ping -w1 -c1 www.baidu.com &>/dev/null && \
return 10 || \
return 20
}


init(){
    # 系统信息采集
    color Info "当前用户 $USER"
    color Info "当前时间 `date "+%F %X"`"
    echo 3 >/proc/sys/vm/drop_caches
    color Info "当前内存 $(free |awk 'NR==2{print $4/1024}')M"
    color Info "当前核心 $(grep -E '^processor' /proc/cpuinfo|wc -l)个"
    color Info "核心品牌 $(grep -E '^model name' /proc/cpuinfo |head -n 1 |awk -F: '{print $2}')"
    color Info "启动时长 $(uptime |awk -F',' '{print $1}')"
    color Success "开始配置静态ip"
cat >>/etc/security/limits.conf <<EOF
* soft nofile 65535
* hard nofile 65535
* soft nproc 1024
* hard nproc 1024
EOF
    color Success "已经优化系统文件打开数、进程打开数"
    echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
    color Success "已经开启系统路由转发"
    static_addr 
    if [ $? -eq 10 ];then
        color Success "静态ip配置并检测完成"
    else
        color Error  "静态ip配置异常"
    fi
    color Info "正在关闭防火墙、selinux"
    color Warning "注意，这将降低服务器安全性"
    systemctl disable firewalld --now
    if [ `getenforce` = 'Enforcing' ];then
        setenforce 0
    fi
    sed -i 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config && \
    color Success "配置完成" || color Error "配置异常，请检查"
    dnf install -y epel-release
    dnf makecache
    dnf install -y wget unzip vim yum-utils httpd-tools psacct net-tools nc jq htop bash-completion lrzsz ntpsec && \
    color Success "安装完成" || color Warning "部分包可能失败"
    color Info "开始进行时间校准"
    ntpdate ntp.aliyun.com && \
    # 修改时间到硬件
    clock -w
    #保存时间到硬件
    hwclock -s
    color Success "时间校准完成"
    echo {"time": "`date +'%F %T'`"} > /tmp/.init
}
if [ -f /tmp/.init ];then
    color Success "检测到此前已进行初始化，如需重新执行，请删除: rm -f /tmp/.init"
    exit 0
fi
init
color Success "初始化完成"