Docker - 离线安装

1. 系统环境

   cat /etc/redhat-release
   
   CentOS Linux release 7.2.1511 (Core)
   

    

2. 下载Docker安装包

   可以按照自己的需要下载安装包，下载地址为：
   https://download.docker.com/linux/static/stable/x86_64/
   

    我这里的安装包为：https://download.docker.com/linux/static/stable/x86_64/docker-18.06.3-ce.tgz

3. 上传解压

   tar -xvf docker-18.06.3-ce.tgz
   

    

4. 将解压出来的docker文件内容移动到 /usr/bin/ 目录下

   cp docker/* /usr/bin/
   

    

5. 将docker注册为service

   vim /etc/systemd/system/docker.service
   
   [Unit]
   Description=Docker Application Container Engine
   Documentation=https://docs.docker.com
   After=network-online.target firewalld.service
   Wants=network-online.target
   [Service]
   Type=notify
   # the default is not to use systemd for cgroups because the delegate issues still
   # exists and systemd currently does not support the cgroup feature set required
   # for containers run by docker
   ExecStart=/usr/bin/dockerd
   ExecReload=/bin/kill -s HUP $MAINPID
   # Having non-zero Limit*s causes performance problems due to accounting overhead
   # in the kernel. We recommend using cgroups to do container-local accounting.
   LimitNOFILE=infinity
   LimitNPROC=infinity
   LimitCORE=infinity
   # Uncomment TasksMax if your systemd version supports it.
   # Only systemd 226 and above support this version.
   #TasksMax=infinity
   TimeoutStartSec=0
   # set delegate yes so that systemd does not reset the cgroups of docker containers
   Delegate=yes
   # kill only the docker process, not all processes in the cgroup
   KillMode=process
   # restart the docker process if it exits prematurely
   Restart=on-failure
   StartLimitBurst=3
   StartLimitInterval=60s
   [Install]
   WantedBy=multi-user.target
   

    

6. 添加文件权限并启动docker

   chmod +x /etc/systemd/system/docker.service 
   

    

7. 重载unit配置文件

   systemctl daemon-reload 
   

    

8. 启动Docker

   systemctl start docker 
   

    

9. 设置开机自动启动

   systemctl enable docker.service
   

    

10. 验证

    #查看Docker状态
    systemctl status docker
    
    #查看Docker版本
    
    docker version 或者 docker info