一、基础环境
1、操作系统：CentOS 7
2、Docker版本：18.06.1
3、官方参考文档
https://docs.docker.com/install/linux/docker-ce/binaries/#install-static-binaries
二、Docker安装
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
ls -s docker/* /usr/local/bin/
3、新增docker配置文件
vi /etc/docker/docker.jason
{
"registry-mirrors": ["https://registry.docker-cn.com"]
}
4、创建docker用户组
groupadd docker
5、将docker注册为service
vi /usr/lib/systemd/system/dockerd.service
将下列配置加到dockerd.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/local/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
6、启动
systemctl daemon-reload #重载unit配置文件
systemctl start dockerd #启动Docker
systemctl enable dockerd.service #设置开机自启
7、验证
systemctl status docker #查看Docker状态
docker -v #查看Docker版本