Environment vars not set correctly and authentication failure

[cristobalcl]

Firstly, I have no idea why the env variables are set like this:

"BROKER_URL=amqp://\${BROKER_USERNAME}:\${BROKER_PASSWORD}@\${BROKER_PORT_${RABBITMQ_PORT}_TCP_ADDR}:\${BROKER_PORT_${RABBITMQ_ADMIN_PORT}_TCP_PORT}//"

Of course, they don't work if I use them in my app. Then, when I set BROKER_URL using dokku command I get authentication errors in my app. This could be, of course, because I didn't set the env var correctly, but in that case I would get connection errors and not authentication failures.

Thanks