I have setup verneMQ with TLS. At present Default MQTT (`1883`) & Secure MQTTS (`8883`) ports are active. To disable Default MQTT (`1883`) I tried to set
`DOCKER_VERNEMQ_LISTENER__TCP__DEFAULT="
0.0.0.0:8883"` but VerneMQ failed to start with this setting.
If I don't set this ENV at all, still VerneMQ listens on default port.
Right now I am blocking port `1883` Service/ELB level. But what is the correct way to do this ?