This is a basic Docker Compose template based on mattkohls project docker-flask-celery-redis and designed to revoke Celery tasks via HTTP requests immediately. I used it in a real project on a Raspberry Pi to start LED light scenes via Streamdeck, so that the running scene is interrupted and the new scene starts immediately.
To clone the repository simply type the following command into your terminal or command line:
git clone https://github.com/VerunicaM/docker-http-revoke
You can now start the build process via
docker-compose up -d --build
or
docker-compose -f docker-compose.yml -f docker-compose.development.yml up --build
to build and enable hot code reload.
The project is set up to expose the Flask application's endpoints on port 5001 as well as a Flower server for monitoring workers on port 5555.
There are already three very simple tasks defined in the celery-queue/tasks.py file. The revokeall task stops running tasks except for itself. The sub_task simulates a long running task and takes one argument that defines how long the task will run. The main_task wraps both tasks so that they are executed one after the other.
The Flask application defines only one route. Use this route to trigger the main_task and add a parameter to the route to define how long the sub_task should run. Your url should look something like this:
http://localhost:5001/?t=60
Trigger another request and check
http://localhost:5555
to see what happend.
I welcome contributions to django-powerbi-embedded. If you have a bug fix or new feature that you would like to contribute, please fork the repository and submit a pull request.