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Don't Repeat Yourself is a principle in software development that all MetaBrainz projects try to follow as much as possible. Three different modules of ListenBrainz: bigquery-writer, influx-writer and webserver connect to RabbitMQ using similar code.

This task involves consolidating this similar code into a function which should then get called by each module when it wants to connect to RabbitMQ.

• influx-writer connects to RabbitMQ in this file: https://github.com/metabrainz/listenbrainz-server/blob/master/listenbrainz/influx-writer/influx-writer.py#L55
• bigquery-writer connects to RabbitMQ in this file: https://github.com/metabrainz/listenbrainz-server/blob/master/listenbrainz/bigquery-writer/bigquery-writer.py#L41
• webserver connects to RabbitMQ in this file: https://github.com/metabrainz/listenbrainz-server/blob/master/listenbrainz/webserver/rabbitmq_connection.py#L8

To complete this task, you should add a function that connects to RabbitMQ in listenbrainz/utils.py and call it in each of the above places, so that we only have one piece of code to connect to RabbitMQ.