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flask-docker-celery-rabbitmq

This repository is for running a simple dummy flask application in a docker environment.

It uses:

  • Flask
  • Celery
  • Flower
  • Rabbitmq
  • PostgreSQL (not doing anything, though)

Prerequisites

Make sure you have docker and docker-compose installed.

Running

Clone this repository and navigate into it in your terminal. Run in development mode, so set APP_ENV environment to Dev

APP_ENV=Dev docker-compose up --build

It will expose 2 ports, one for the flask application (8888) and one for the RabbitMQ management interface (15672). It will also start 2 worker containers.

When it runs, you can test it with several curl posts request and check it running in the Flower interface.

for value in {1..50}
do
    curl --data '{json}' -H 'Content-Type: application/json' 0.0.0.0:8888/api/process_data
done

This will run 50 tasks, you can see in the flower http://localhost:5556 how the tasks are distributed between the worker instances.

You can also check the status of a specific task in flask: http://localhost:8888/api/tasks/<task-id>

The RabbitMQ interface http://localhost:15673 with login:

  • username: rabbit_user
  • password: rabbit_password
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