一、环境
1. CentenOS 7 内核3.1以上
内核查看命令： uname -a
2. 安装包：docker-19.03.8.tgz
下载地址：https://download.docker.com/linux/static/stable/x86_64/
二、安装
1.解压
tar -xvf docker-19.03.8.tgz
2.移动(/user/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 EngineDocumentation=https://docs.docker.comAfter=network-online.target firewalld.serviceWants=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 dockerExecStart=/usr/bin/dockerdExecReload=/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=infinityLimitNPROC=infinityLimitCORE=infinity
# Uncomment TasksMax if your systemd version supports it.
# Only systemd 226 and above support this version.
#TasksMax=infinityTimeoutStartSec=0
# set delegate yes so that systemd does not reset the cgroups of docker containersDelegate=yes
# kill only the docker process, not all processes in the cgroupKillMode=process
# restart the docker process if it exits prematurelyRestart=on-failureStartLimitBurst=3StartLimitInterval=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
