Centos7 安装最新Docker

查找删除现有docker

# 停止docker
systemctl stop docker
yum list installed | grep docker
# 然后移除(卸载)docker
rm -rf /var/lib/docker

安装最新版docker

# 安装源
yum install -y yum-utils
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum makecache fast
# 安装docker
yum -y install docker-ce
# 启动docker
systemctl start docker
# 开机启动
systemctl enable docker