更新源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O/etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
更新系统
yum update
yum update && yum install -y vim python-pip curl git
更新 yum 缓存:
sudo yum makecache fast
安装 Docker-ce:
sudo yum -y install docker-ce
启动 Docker 后台服务
sudo systemctl start docker
测试运行 hello-world
docker pull hello-world
docker run hello-world
docker加速器
curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://88bbf89e.m.daocloud.io
//需要重启
systemctl restart docker
若报错Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
解决办法
$ systemctl daemon-reload
$ sudo service docker restart
$ sudo service docker status (should see active (running))
$ sudo docker run hello-world