# 程序安装-Centos下安装Docker

By [web3_it](https://paragraph.com/@web3-it) · 2022-05-19

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*   **更新linux**
    
        sudo yum update
        
    
*   **安装需要的软件包**
    
    yum-util 提供yum-config-manager功能，另两个是devicemapper驱动依赖
    
        sudo yum install -y yum-utils device-mapper-persistent-data lvm2
        
    
*   **设置yum源**
    
    中央仓库
    
        sudo yum-config-manager --add-repo http://download.docker.com/linux/centos/docker-ce.repo
        
    
    阿里仓库
    
        sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
        
    
*   **查看可用版本**
    
        sudo yum list docker-ce --showduplicates | sort -r
        
    
*   **安装**
    
    选择一个版本并安装，yum install docker-ce-版本号
    
        sudo yum -y install docker-ce-20.10.0-3.el7 docker-ce-cli-20.10.0-3.el7 containerd.io
        
    
*   **设置开机启动**
    
        sudo systemctl enable docker
        
        sudo systemctl start docker
        
    
*   **验证是否安装成功**
    
    查看版本
    
    运行hello-world
    
        sudo docker run --rm hello-world

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*Originally published on [web3_it](https://paragraph.com/@web3-it/centos-docker)*