User + password combo for rabbitmq amqp

[xav-hydra]

Is your feature request related to a problem? Please describe.
I'm using kubernetes to store a project, and also a rabbitmq, but it's user:password protected.

Describe the solution you'd like
Add two environment variables to be able to connect to those rabbitmq.

Describe alternatives you've considered
I tried to change the RABBITMQ_IP with the user:password@{service-name or IP} but the entrypoint.sh of lost-cv doesn't work with this :

nc -z $RABBITMQ_IP $RABBITMQ_PORT
n=$?
while [ $n -ne 0 ]; do
    ...

Additional context
Nothing more to add.