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Airflow Production docker-compose setup

Acknowledgments

This repo is a culmination of the ideas and code from the following:

Introduction

Production grade airflow docker-compose setup:

  • celery backend
  • rabbitmq (with dashboard)
  • scalable number of nodes
  • postgresql (needs external db, but you can configure a service for a local instance)

You can just copy paste the worker definition (in docker-compose.yml) as many times as you want, everything else should automagically work, provided you've follwed the steps below.

Setup

  • First, copy the env.example and populate it with the relevant values.
cp -rv env.example .env # populate .env
  • Then just run the docker-compose stack
docker-compose up --build -d

UI

  • Airflow Dashboard: /airflow/
  • Flower UI: /flower/
  • RabbitMQ Management Dashboard: / (currently there's an error with mounting to url prefix)

Issues

RabbitMQ

Sometimes the workers and other nodes are not able to connect to the rabbitmq instance inspite of the exact same credentials. In such a situation, just reset the password for the user you've created and you should be good to go.

docker exec -it <rabbitmq_container_id> rabbitmqctl change_password $RABBIT_USER $RABBIT_PASSWORD
# verify once
docker exec -it <rabbitmq_container_id> rabbitmqctl authenticate_user $RABBIT_USER $RABBIT_PASSWORD

airflow.exceptions.AirflowTaskTimeout error

WIP (I think changing the timeout config should help, please submit a PR if you've been able to fix this!)