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安装 docker

# CentOS Linux release 7.3.1611 (Core)
# 使用官方的脚本安装docker
sudo curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
# 启动docker服务
sudo systemctl start docker

登录阿里云容器镜像仓库
https://cr.console.aliyun.com/cn-shenzhen/instances/repositories
按照文档进行配置镜像加速器

docker 配置 nginx

# 拉取centos镜像
sudo docker pull centos:7.7.1908

编写 DockerFile 文件

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