Docker报错: Failed to download metadata for repo ‘appstream‘: Cannot prepare internal mirrorlist

yum -y install vim

Error: Failed to download metadata for repo ‘appstream‘: 
Cannot prepare internal mirrorlist

# 进入目录
cd /etc/yum.repos.d/

sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* && \
sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-* && \
yum makecache && \
yum update -y

yum -y install vim