下载docker离线包
wget https://download.docker.com/linux/static/stable/x86_64/docker-19.03.5.tgz
解压
tar -xvf docker-19.03.5.tgz
将解压出来的docker目录下的文件移动到 /usr/bin/ 目录下
cp docker/* /usr/bin/
将docker注册为系统service vim /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 # 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=onfailure StartLimitBurst=3 StartLimitInterval=60s [Install] WantedBy=multi-user.target
启动docker
启动 chmod +x /usr/lib/systemd/system/docker.service #添加文件权限并启动docker systemctl daemon-reload #重载unit配置文件
systemctl start docker #启动Docker
加入开机启动项
ln -s /usr/lib/systemd/system/docker.service /etc/systemd/system/multi-user.target.wants/docker.service
检查是否加入开机启动项
systemctl list-unit-files|grep docker
