1、操作系统：centos 7.3
2、docker版本：18.06.1 官方下载地址（打不开可能很慢）
3、百度云docker 18.06.1地址：https://pan.baidu.com/s/1ydn9z72qutpkhbflq06h1a 密码：dvvh
4、官方参考文档：
1、解压
tar -xvf docker-18.06.1-ce.tgz
2、将解压出来的docker文件内容移动到 /usr/bin/ 目录下
mv docker/* /usr/bin/
3、将docker注册为service
vim /etc/systemd/system/docker.service
将下列配置加到docker.service中并保存
[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、启动
chmod +x /etc/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
systemctl enable docker.service #设置开机自启
5、验证
systemctl status docker #查看docker状态
docker -v #查看docker版本
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