How can I monitor Celery tasks using Prometheus?

How can I monitor Celery tasks using Prometheus?

You can monitor Celery tasks by using the Prometheus client library to expose metrics from your Celery application.

What specific metrics should I track for Celery?

You should track metrics like task success rates, task failure rates, and task execution times.

How do I set up the Prometheus client in my Celery app?

You can set it up by installing the Prometheus client library and adding a metrics endpoint in your Celery app.

Can you provide an example of the code needed for that?

Sure! Here's a simple example:

from prometheus_client import start_http_server, Summary

# Create a metric to track task execution time
TASK_EXECUTION_TIME = Summary('task_execution_time', 'Time spent processing task')

@TASK_EXECUTION_TIME.time()
def process_task():
    # Your task processing logic here
    pass

if __name__ == '__main__':
    start_http_server(8000)  # Start the Prometheus metrics server
    # Start your Celery worker here