YUM 源配置包含base、extras、epel源，镜像源分别为清华大学开源软件镜像站、
华为开源镜像站、腾讯镜像站、阿里云镜像站

# CentOS 7
# /etc/yum.repos.d/centos7.repo
[base]
name=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/os/$basearch/
		https://mirrors.huaweicloud.com/centos/$releasever/os/$basearch/
		https://mirrors.cloud.tencent.com/centos/$releasever/os/$basearch/
		http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
		
gpgcheck=0
enable=1

[extras]
name=extras
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/
		https://mirrors.huaweicloud.com/centos/$releasever/extras/$basearch/
		https://mirrors.cloud.tencent.com/centos/$releasever/extras/$basearch/
		https://mirrors.aliyun.com/centos/$releasever/extras/$basearch/	
gpgcheck=0
enable=1

[epel]
name=epel
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/$releasever/$basearch/
		https://mirrors.huaweicloud.com/epel/$releasever/$basearch/
		https://mirrors.cloud.tencent.com/epel/$releasever/$basearch/
		https://mirrors.aliyun.com/epel/$releasever/$basearch/
gpgcheck=0
gpgkey=https://mirrors.huaweicloud.com/epel/RPM-GPG-KEY-EPEL
enable=1

# CentOS 8
# /etc/yum.repos.d/centos8.repo
[BaseOS]
name=BaseOS
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/8-stream/BaseOS/$basearch/os/
		https://mirrors.huaweicloud.com/centos/8-stream/BaseOS/$basearch/os/
		http://mirrors.cloud.tencent.com/centos/$releasever/BaseOS/$basearch/os/
		http://mirrors.aliyun.com/centos/$releasever/BaseOS/$basearch/os/	
gpgcheck=0
enable=1

[AppStream]
name=AppStream
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/8-stream/AppStream/$basearch/os/
		https://mirrors.huaweicloud.com/centos/8-stream/AppStream/$basearch/os/
		https://mirrors.cloud.tencent.com/centos/$releasever/AppStream/$basearch/os/
		http://mirrors.aliyun.com/centos/$releasever/AppStream/$basearch/os/
gpgcheck=0
enable=1

[extras]
name=extras
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/os/
		https://mirrors.huaweicloud.com/centos/$releasever/extras/$basearch/os/
		https://mirrors.cloud.tencent.com/centos/$releasever/extras/$basearch/os/
		https://mirrors.aliyun.com/centos/$releasever/extras/$basearch/os/
gpgcheck=0
enable=1

[epel-Everything]
name=epel-Everything
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/$releasever/Everything/$basearch/
		https://mirrors.huaweicloud.com/epel/$releasever/Everything/$basearch/
		http://mirrors.cloud.tencent.com/epel/$releasever/Everything/$basearch/
		https://mirrors.aliyun.com/epel/$releasever/Everything/$basearch/
gpgcheck=0
enable=1

[epel-Modular]
name=epel-Modular
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/$releasever/Modular/$basearch/
		https://mirrors.huaweicloud.com/epel/$releasever/Modular/$basearch/
		http://mirrors.cloud.tencent.com/epel/$releasever/Modular/$basearch/
		https://mirrors.aliyun.com/epel/$releasever/Modular/$basearch/
gpgcheck=0
enable=1