I have a stack with many entities like microservices, BDD, ecc…, and i want use RabbitMQ for notify a change to every entities of my stack.
For do that i want use a single producer but n queues that are consumed by n consumers. Every consumer will notify the related entity.
I am not be going into details of how RabbitMQ works. I strongly suggest you to read the documentation.
Assuming that you have already installed RabbitMQ on your server you can follow the tutorial Symfony 4 and RabbitMQ for install package php-amqplib/rabbitmq-bundle into your project.