Docker Rabbit MQ Demo

This project is a simple example of microservices running on docker to produce and consume jobs from a queue.

Prerequesites

• docker host (boot2docker on osx works great)
• fig (brew install fig)

Running the demo

fig up

Then once things appear to be working, visit the following url:

http://[your docker host]:15672

And use username/password: admin/mypass

What is happening?

When you run fig up, the following happens:

1. Three images are built

• tutum/rabbitmq
• producer (based on python:2.7), check out Dockerfile in the producer directory
• worker (based on python:2.7), check out Dockerfile in the worker directory

1. Three containers are started, as defined in fig.yml

• a rabbitmq container
• a worker container, linked to the rabbit container
• a producer container, linked to the rabbit container

1. The worker and producer containers attempt to connect to the rabbitmq container. If the connection fails, they try again every 5 seconds for a minute before giving up.
2. The producer starts producing jobs as rabbitmq messages.
3. The worker will operate on those jobs when made aware of them by the queue.

Starting multiple producers/workers

fig start rabbitmq
fig scale producer=[num producers] worker=[num workers]