1. 进入 docker 容器
$ docker exec -it 4a21b5ee9275 /bin/bash
2. 查看debian系统版本
# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
3. 确认版本后配置国内镜像源(本例版本代号为bullseye)
# echo "deb http://mirrors.aliyun.com/debian bullseye main" >/etc/apt/sources.list
# echo "deb http://mirrors.aliyun.com/debian-security bullseye-security main" >>/etc/apt/sources.list
# echo "deb http://mirrors.aliyun.com/debian bullseye-updates main" >>/etc/apt/sources.list