Describe the process of launching and configuring Celery for task execution in an application.

To run and configure Celery in an application, you need to follow several steps:

1. Install Celery: using pip pip install celery.

2. Configure the message broker: Celery requires a broker, such as RabbitMQ or Redis. Specify the broker URL in the settings.

3. Create a Celery instance: create a Celery object in the code and configure it.

4. Define tasks: tasks are defined as functions decorated with @celery.task.

5. Start the worker: using the command celery -A your_module worker --loglevel=info.

Example of minimal configuration:

from celery import Celery

app = Celery('tasks', broker='redis://localhost:6379/0')

@app.task
def add(x, y):
    return x + y

Then start the worker and call the task:

add.delay(4, 6)

This will send the task to the queue, and the worker will execute it asynchronously.