CentOS下离线安装Docker 19.03.9
CentOS下离线安装Docker
一、基础环境
1、操作系统：CentOS 7.3
2、Docker版本：19.03.9 官方下载地址
3、官方参考文档：https://docs.docker.com/install/linux/docker-ce/binaries/#install-static-binaries
二、Docker安装
1、下载
wget https://download.docker.com/linux/static/stable/x86_64/docker-19.03.9.tgz
注意：如果事先下载好了可以忽略这一步
2、解压
把压缩文件存在指定目录下，并进行解压
tar -xvf docker-19.03.9.tgz
3、将解压出来的docker文件内容移动到 /usr/bin/ 目录下
cp docker/* /usr/bin/
4、将docker注册为service
vim /etc/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=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target
5、启动
chmod +x /etc/systemd/system/docker.service #添加文件权限并启动docker(本人没有执行这一步)
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
6、验证
systemctl status docker #查看Docker状态
docker -v #查看Docker版本
docker info
附：docker 安装完成后，未启动时运行命令提示
启动后提示：
