一、基础环境
1、操作系统：CentOS 7.3
2、Docker版本：18.06.1 官方下载地址
3、百度云Docker 18.06.1地址：链接：/s/1UJCeNWOhVOmtsnCCq48p1w 提取码：r5vn
复制这段内容后打开百度网盘手机App，操作更方便哦
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
cp 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
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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