Issue with Celery Not Receiving Tasks - Django Ubuntu

Question

I'm experiencing an issue with Celery where it doesn't respond automatically upon system boot. Here's a breakdown of my setup and the problem:

Setup:

• Django project using Celery for asynchronous tasks.
• Celery workers configured with the @shared_task decorator.
• Using Redis as the broker with the CELERY_BROKER_URL set to 'redis://localhost'.
• Celery workers configured to run as a systemd service on Ubuntu.

Problem:

• When the system boots up, Celery starts automatically, but asynchronous tasks are not executed.
• Manually starting Celery with the command home/ubuntu/.venv/bin/celery -A febiox.celery worker -l info -E works fine, and tasks are executed as expected.
• Checking the status of Celery service with sudo systemctl status celery.service shows that the service is active and running.
• However, when attempting to inspect active Celery nodes with celery -A febiox.celery inspect active, I get the error message Error: No nodes replied within time constraint.
• Interestingly, running the same command after manually starting Celery returns the expected result showing the correct node.

Systemd Service Configuration:

[Unit]
Description=Celery Task Worker
After=network.target

[Service]
Type=simple
User=ubuntu
WorkingDirectory=/home/ubuntu/febiox
ExecStart=/home/ubuntu/.venv/bin/python3 /home/ubuntu/.venv/bin/celery -A febiox.celery worker -l info -E
Restart=always
StandardOutput=file:/var/log/celery/celery.log
StandardError=file:/var/log/celery/celery_error.log

[Install]
WantedBy=multi-user.target

Additional Information:

• Redis receives data when attempting to execute tasks.
• sudo systemctl reload celery.service doesn't produce any errors, but it also doesn't seem to resolve the issue.
• sudo systemctl start celery.service starts the service without errors.
• sudo systemctl status celery.service shows two instances of the Celery worker process, which seems unusual.