1.  解压opt.tar.gz
tar  -xvf opt.tar.gz  -C /usr/local/

2.  添加环境变量
export PATH=/usr/local/erlang25/bin:$PATH

3.  解压emqx.tar.gz到安装目录（/data）
tar  -xvf emqx.tar.gz  -C /data

4.  创建server文件
sudo tee /etc/systemd/system/emqx.service << 'EOF'
[Unit]
Description=EMQX MQTT Broker
After=network.target

[Service]
Type=forking
User=root
Group=root
Environment="HOME=/var/lib/emqx"
ExecStart=/data/emqx/_build/emqx/rel/emqx/bin/emqx start
ExecStop=/data/emqx/_build/emqx/rel/emqx/bin/emqx  stop
LimitNOFILE=1048576
Restart=on-failure
# 忽略停止时的退出码
SuccessExitStatus=0 1

[Install]
WantedBy=multi-user.target
EOF

5.  启动，停止
systemctl start emqx.service 
systemctl stop emqx.service 
systemctl enable emqx.service