1.docker安装和启动
wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
yum install docker-ce -y
systemctl start docker
systemctl enable docker
systemctl status docker
2.获取镜像
docker pull emqx/emqx:v4.0.0
3.启动 docker 容器
docker run -d --name emqx -p 1883:1883 -p 8083:8083 -p 8883:8883 -p 8084:8084 -p 18083:18083 emqx/emqx:v4.0.0
4.访问web界面(url：公网ip+18083端口 )
Access：admin
Password：public 
