NanoMQ

MQTT broker. Se diz ultra rápido. Parece bastante simples de subir e configurar.

https://nanomq.io/

Config

Usa HOCON Config.

Exemplo de config com usuário e senha e bloqueando login anônimo:

/etc/nanomq_pwd.conf:

myuser:mypassword

/etc/nanomq.conf:

auth {
	allow_anonymous = false # Allow clients to connect without providing username/password

	password = {include "/etc/nanomq_pwd.conf"} # Path to the password configuration file
}