准備文件
1. docker-19.03.0.tgz 下載地址：https://download.docker.com/linux/static/stable/x86_64/
一、解壓
tar -zxvf docker-19.03.0.tgz
二、創建docker.service
vim /etc/systemd/system/docker/docker.service
編輯內容（復制粘貼即可）：
[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 -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock 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
三、授權執行權限
chmod +x /etc/systemd/system/docker.service
四、重載systemd下xxx.service文件
systemctl daemon-reload
五、安裝完成，啟動Docker
# 啟動docker systemctl start docker # 設置開機啟動 systemctl enable docker # 查看docker狀態 systemctl status docker # 查看docker版本 docker -v