linux离线Docker与docker-compose安装，并配置docker镜像保存地址

ゞ浴缸里的玫瑰 2022-08-31 11:06 201阅读 0赞

## Docker安装 ##

1.  下载 docker [国内镜像链接][Link 1]（博主下载的是docker-18.06.3-ce.tgz版本）
2.  解压下载的docker包  
    `tar zxvf docker-18.06.3-ce.tgz`
3.  复制解压出来的docker到/usr/bin/目录下  
    `sudo cp docker/* /usr/bin/`
4.  在以下目录下新建一个文件 docker.service  
    `vim /etc/systemd/system/docker.service`

文件内容如下

[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

**如果需要修改镜像默认保存位置**，将上面代码中的 `ExecStart=/usr/bin/dockerd` 改为 `ExecStart=/usr/bin/dockerd --graph= /data/docker`即修改了新的镜像保存位置为 `/data/docker`。（如果想查看是否修改成功了，可以重新启动docker后用`docker info`命令查看）  
5. systemctl daemon-reload 加载文件 使其生效  
6. 运行 systemctl restart docker 重启动docker  
7. systemctl enable docker 开机自启docker命令

## docker-compose安装 ##

其安装非常简单，下一个对应版本的docker-compose文件，移动到对应位置，然后修改其名字为docker-compose，增加执行权限之后就可以直接使用docker-compose了  
具体操作步骤

*  直接在线安装

curl -L https://get.daocloud.io/docker/compose/releases/download/1.29.2/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose

chmod +x /usr/local/bin/docker-compose

*  离线安装

1.  从git上下载对应版本的docker-compose文件[链接][Link 2]
2.  移动位置并修改名字  
    `mv docker-compose-Linux-x86_64 /usr/local/bin/docker-compose`
3.  修改权限  
    `chmod +x /usr/local/bin/docker-compose`

[Link 1]: https://download.docker.com/linux/static/stable/x86_64/
[Link 2]: https://github.com/docker/compose/releases