一、基礎環境
系統：CentOS7.2
docker版本：19.03.4
安裝包下載地址：使勁點這里
文檔參考地址：使勁點這里
二、安裝
1、解壓上傳的壓縮包，解壓后當前路徑會生成一個docker目錄，命令如下：
tar -zxf docker-19.03.4.tgz
2、將docker服務注冊為service
cp docker/* /usr/bin/
vim /etc/systemd/system/docker.service
將如下內容粘貼到docker.service
ps：需要root權限，如果權限被限制，可以通過ln -s 軟連接指到 /etc/systemd/system/docker.service一樣可以
[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
4、啟動
chmod +x /etc/systemd/system/docker.service #添加文件權限並啟動docker
systemctl daemon-reload #重載unit配置文件
systemctl start docker #啟動Docker
systemctl enable docker.service #設置開機自啟
5、驗證
systemctl status docker #查看Docker狀態