离线安装docker _安装docker

追风赶月莫停留，平芜尽处是春山。这篇文章主要讲述离线安装docker相关的知识，希望能为你提供帮助。
下载docker镜像
https://download.docker.com/linux/static/stable/x86_64/
【离线安装docker】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
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
修改docker挂载路径：

1、确保停止docker服务
# systemstl stop docker.service
2、修改/etc/docker/daemon.json文件值，文件不存在需手动创建
# vim /etc/docker/daemon.json
新增以下信息：
{"data-root": "/opt/docker/data"}
3、启动docker服务# systemstl start docker.service
4、docker info 验证Docker Root Dir的值是否已修改为/opt/docker/data