centos 8安装epel并将yum repo配置为本地镜像

yum install -y epel-release
sed -e 's/^metalink=/#metalink=/g' \
    -e 's/^#baseurl=/baseurl=/g' \
    -e 's/\/download\.fedoraproject\.org\/pub/\/10.20.100.23/g' \
    -e 's/https:\/\/10\.20/http:\/\/10.20/g'  -i  *

其中本地epel镜像url为：

http://10.20.100.23/epel