CentOS7 安装docker-ce

1.更新yum

yum update

 

2.运行Docker安装脚本

curl -fsSL https://get.docker.com/ | sh

 

这个脚本将会添加docker.repo并且安装Docker

3.设置Docker服务开机自启

systemctl enable docker.service

 

4.添加Docker启动时参数

vim /usr/lib/systemd/system/docker.service
# ExecStart=/usr/bin/dockerd
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock -g /opt/docker -s devicemapper --storage-opt dm.fs=xfs --storage-opt dm.use_deferred_removal=true --storage-opt dm.use_deferred_deletion=true --storage-opt dm.basesize=5G

 

5.启动Docker服务

systemctl start dockerps 
systemctl restart docker

 

注：如果启动失败，先执行systemctl daemon-reload

6.验证Docker是否安装

docker run --rm hello-world