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celery-director

(★ 553)

Simple and rapid framework to build workflows with Celery

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- - tests.yml
- CODEOWNERS
- - __init__.py
  - workflows.py
- - __init__.py
  - assets.py
  - celery.py
  - db.py
  - init.py
  - user.py
  - webserver.py
  - workflows.py
- - alembic.ini
  - env.py
  - README
  - script.py.mako
- - __init__.py
  - tasks.py
  - users.py
  - utils.py
  - workflows.py
- - script.js
  - style.css
- - __init__.py
  - base.py
  - periodic.py
  - workflows.py
- - error.html
  - index.html
- - __init__.py
- __init__.py
- _auto.py
- auth.py
- builder.py
- cli.py
- context.py
- exceptions.py
- extensions.py
- settings.py
- utils.py
- VERSION
- - api.md
  - index.md
  - quickstart.md
- mkdocs.yml
- README.md
- - .env
  - workflows.yml
- __init__.py
- conftest.py
- README.md
- test_api.py
- test_auth.py
- test_builder.py
- test_sentry.py
- test_users.py
- test_views.py
- test_workflows.py
.gitignore
AUTHORS
CHANGELOG.md
CONTRIBUTING.md
CONTRIBUTORS
director.gif
LICENSE
logo.png
MANIFEST.in
pytest.ini
README.md
requirements.txt
setup.py

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<p align="center">
  <img alt="Celery Director logo" src="https://raw.githubusercontent.com/ovh/celery-director/master/logo.png">
</p>
<p align="center">
  <a href="https://github.com/ovh/celery-director/actions/workflows/tests.yml"><img alt="Tests" src="https://github.com/ovh/celery-director/workflows/Tests/badge.svg"></a>
  <a href="https://www.python.org/"><img alt="Python versions" src="https://img.shields.io/badge/python-3.8%2B-blue.svg"></a>
  <a href="https://github.com/ovh/depc/blob/master/LICENSE"><img alt="License" src="https://img.shields.io/badge/license-BSD%203--Clause-blue.svg"></a>
  <a href="https://github.com/python/black"><img alt="Code style: black" src="https://img.shields.io/badge/code%20style-black-000000.svg"></a>
</p>
<p align="center">
  <a href="https://raw.githubusercontent.com/ovh/celery-director/master/director.gif"><img alt="Celery Director" src="https://raw.githubusercontent.com/ovh/celery-director/master/director.gif"></a>
</p>

----------------

Director is a simple and rapid framework used to manage tasks and build workflows using Celery.

The objective is to make Celery easier to use by providing :

- a WebUI, an API and a CLI to manage and execute the workflows,
- a WebUI to track the tasks states,
- a YAML syntax used to combine tasks into workflows,
- the ability to periodically launch a whole workflow,
- and many others.

See how to use Director with the quickstart and guides in the [documentation](https://ovh.github.io/celery-director/).

## Installation

Install the latest version of Director with pip (requires at least `Python 3.7`):

```bash
pip install celery-director
```

## Usage

### Write your code in Python

```python
# tasks/orders.py
from director import task
from .utils import Order, Mail

@task(name="ORDER_PRODUCT")
def order_product(*args, **kwargs):
    order = Order(
      user=kwargs["payload"]["user"],
      product=kwargs["payload"]["product"]
    ).save()
    return {"id": order.id}

@task(name="SEND_MAIL")
def send_mail(*args, **kwargs):
    order_id = args[0]["id"]
    mail = Mail(
      title=f"Your order #{order_id} has been received",
      user=kwargs["payload"]["user"]
    )
    mail.send()
```

### Build your workflows in YAML

```yaml
# workflows.yml
product.ORDER:
  tasks:
    - ORDER_PRODUCT
    - SEND_MAIL
```

### Run it

You can simply test your workflow in local :

```bash
$ director workflow run product.ORDER '{"user": 1234, "product": 1000}'
```

And run it in production using the director API :

```bash
$ curl --header "Content-Type: application/json" \
  --request POST \
  --data '{"project": "product", "name": "ORDER", "payload": {"user": 1234, "product": 1000}}' \
  http://localhost:8000/api/workflows
```

Read the [documentation](https://ovh.github.io/celery-director/) to try the quickstart and see advanced usages of Celery Director.

## Project layout

.env                # The configuration file.
    workflows.yml       # The workflows definition.
    tasks/
        example.py      # A file containing some tasks.
        ...             # Other files containing other tasks.

## Commands

* `director init [path]` - Create a new project.
* `director celery [worker|beat|flower]` - Start Celery daemons.
* `director webserver` - Start the webserver.
* `director workflow [list|show|run]` - Manage your project workflows.

## License

See https://github.com/ovh/celery-director/blob/master/LICENSE