下载、安装

wget https://download.docker.com/linux/static/stable/x86_64/docker-19.03.6.tgz
tar -zvxf docker-19.03.6.tgz

把文件copy到/usr/bin下面

cp docker/* /usr/bin/

写入到服务文件

vi /usr/lib/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
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s

[Install]
WantedBy=multi-user.target

服务配置文件重载

systemctl daemon-reload

设置开机自启

systemctl start docker
systemctl enable docker.service

查看docker运行状态