#!/bin/bash
# 设置设备IP后使用此脚本
# 可以先 yum install lrzsz -y 然后使用 rz 将此脚本上传到设备上， chmod +x centosinit.sh 给此脚本执行权限，再 ./centosinit.sh 进行第三方包和软件的安装

# 检测当前系统是否为 CentOS 7 系列，若是则自动备份 yum 源并用内嵌的华为云 CentOS-Base.repo 替换
if [ -f /etc/redhat-release ] && grep -q "CentOS" /etc/redhat-release && grep -qE "release 7\." /etc/redhat-release; then
    echo "检测到 CentOS 7 系列，开始检查 yum 源..."

    if [ -f /etc/yum.repos.d/CentOS-Base.repo ] && grep -q "repo.huaweicloud.com" /etc/yum.repos.d/CentOS-Base.repo; then
        echo "yum 源已替换为华为云镜像，无需重复替换"
    else
        # 备份原有 yum 源
        if [ -f /etc/yum.repos.d/CentOS-Base.repo ]; then
            echo "备份原有 yum 源 CentOS-Base.repo ..."
            cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
            if [ $? -ne 0 ]; then
                echo "备份 yum 源失败"
                exit 1
            fi
        fi

        # 写入内嵌的华为云 CentOS-Base.repo
        echo "写入新的 CentOS-Base.repo ..."
        cat > /etc/yum.repos.d/CentOS-Base.repo <<'REPOEOF'
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - repo.huaweicloud.com
baseurl=https://repo.huaweicloud.com/centos/$releasever/os/$basearch/
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates - repo.huaweicloud.com
baseurl=https://repo.huaweicloud.com/centos/$releasever/updates/$basearch/
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - repo.huaweicloud.com
baseurl=https://repo.huaweicloud.com/centos/$releasever/extras/$basearch/
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - repo.huaweicloud.com
baseurl=https://repo.huaweicloud.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=https://repo.huaweicloud.com/centos/RPM-GPG-KEY-CentOS-7
REPOEOF
        if [ $? -ne 0 ]; then
            echo "写入 CentOS-Base.repo 失败"
            exit 1
        fi

        # 清理旧的 yum 缓存，避免仍指向失效镜像
        echo "清理 yum 缓存..."
        yum clean all
        rm -rf /var/cache/yum/*
    fi
else
    echo "非 CentOS 7 系列，跳过 yum 源替换"
fi

echo "update now, this may take a minute..."
yum upgrade -y
if [ $? -ne 0 ]; then
    echo "yum upgrade failed"
    exit 1
fi

echo "install fonts now"
yum groupinstall -y "Fonts"
if [ $? -ne 0 ]; then
    echo "install fonts failed"
    exit 1
fi

packages=(
    net-tools           # 
    lrzsz               #
    tcpdump             #
    libaio              # 
    psmisc              # 
    lsof                #
    bridge-utils        # 
    wget                #
    strace              # 
    cryptsetup          # 
    net-snmp-utils      #
    freeradius-utils    #
    unzip               #
    socat               #
    traceroute          #
    sysstat             # 
    iotop               # 
    gtk3                # 
    vim                 # 
    telnet              # 
    docker              # 
    java                # 
    java-devel          # 
    unixODBC            # 
)

for(( i=0; i<${#packages[@]}; i++)) do
    echo "install ${packages[i]} now"
    yum install -y ${packages[i]}
    if [ $? -ne 0 ]; then
        echo "install ${packages[i]} failed"
        exit 1
    fi
done

#兆芯设备安装麒麟23年server系统时，需要安装指定版本内核才不会导致系统网络io异常
if nkvers | grep -q "x86_64" && nkvers | grep -q "4.19.90" && lscpu | grep -q "ZHAOXIN"; then
    yum install -y kernel-4.19.90-52.42.v2207.ky10
else
	echo "非特定设备与系统组合，不需要安装指定版本内核"
fi

echo "Initialization completed, everything is ok!"