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In certain code paths, such as in `tutor local quickstart`, `process_mount_points` is called more than once in the same process, causing mounts to be added to `COMPOSE_LOCAL[_JOBS]_TMP` redundantly. As a result, docker-compose[.jobs].tmp.yml was occasionally being rendered with duplicate volume specifiers. Some versions of Docker Compose ignored this; other versions warned or threw an error. In order to make `process_mount_points` tolerant to being called multiple times, we wrap its volume-adding callbacks within a new hooks context. This allows us to clear said hooks context every time `process_mount_points` is called, essentially making the function idempotent. Co-authored-by: Régis Behmo <regis@behmo.com>
.. _readme_intro_start:
Tutor: the Docker-based Open edX distribution designed for peace of mind
========================================================================
.. image:: https://overhang.io/static/img/tutor-logo.svg
:alt: Tutor logo
:width: 500px
:align: center
|
.. image:: https://img.shields.io/static/v1?logo=github&label=Git&style=flat-square&color=brightgreen&message=Source%20code
:alt: Source code
:target: https://github.com/overhangio/tutor
.. image:: https://img.shields.io/static/v1?logo=discourse&label=Forums&style=flat-square&color=ff0080&message=discuss.openedx.org
:alt: Forums
:target: https://discuss.openedx.org/tag/tutor
.. image:: https://img.shields.io/static/v1?logo=readthedocs&label=Documentation&style=flat-square&color=blue&message=docs.tutor.overhang.io
:alt: Documentation
:target: https://docs.tutor.overhang.io
.. image:: https://img.shields.io/pypi/v/tutor?logo=python&logoColor=white
:alt: PyPI releases
:target: https://pypi.org/project/tutor
.. image:: https://img.shields.io/github/license/overhangio/tutor.svg?style=flat-square
:alt: AGPL License
:target: https://www.gnu.org/licenses/agpl-3.0.en.html
.. image:: https://img.shields.io/static/v1?logo=twitter&label=Twitter&style=flat-square&color=1d9bf0&message=@overhangio
:alt: Follow us on Twitter
:target: https://twitter.com/overhangio/
.. image:: https://img.shields.io/static/v1?logo=youtube&label=YouTube&style=flat-square&color=ff0000&message=@overhangio
:alt: Follow us on Youtube
:target: https://www.youtube.com/c/OverhangIO
**Tutor** is the official Docker-based `Open edX <https://openedx.org>`_ distribution, both for production and local development. The goal of Tutor is to make it easy to deploy, customise, upgrade and scale Open edX. Tutor is reliable, fast, extensible, and it is already used to deploy hundreds of Open edX platforms around the world.
Do you need professional assistance setting up or managing your Open edX platform? Overhang.IO provides online support as part of its `Long Term Support (LTS) offering <https://overhang.io/tutor/pricing>`__.
Features
--------
* 100% `open source <https://github.com/overhangio/tutor>`__
* Runs entirely on Docker
* World-famous 1-click `installation and upgrades <https://docs.tutor.overhang.io/install.html>`__
* Comes with batteries included: `theming <https://github.com/overhangio/indigo>`__, `SCORM <https://github.com/overhangio/openedx-scorm-xblock>`__, `HTTPS <https://docs.tutor.overhang.io/configuration.html#ssl-tls-certificates-for-https-access>`__, `web-based administration interface <https://github.com/overhangio/tutor-webui>`__, `mobile app <https://github.com/overhangio/tutor-android>`__, `custom translations <https://docs.tutor.overhang.io/configuration.html#adding-custom-translations>`__...
* Extensible architecture with `plugins <https://docs.tutor.overhang.io/plugins/index.html>`__
* Works with `Kubernetes <https://docs.tutor.overhang.io/k8s.html>`__
* Amazing premium plugins available in the `Tutor Wizard Edition <https://overhang.io/tutor/wizardedition>`__, including `Cairn <https://overhang.io/tutor/plugin/cairn>`__ the next-generation analytics solution for Open edX.
* No technical skill required with the `zero-click Tutor AWS image <https://docs.tutor.overhang.io/install.html#zero-click-aws-installation>`__
.. _readme_intro_end:
.. image:: ./docs/img/quickstart.gif
:alt: Tutor local quickstart
:target: https://terminalizer.com/view/91b0bfdd557
Quickstart
----------
1. Install the `latest stable release <https://github.com/overhangio/tutor/releases>`_ of Tutor
2. Run ``tutor local quickstart``
3. You're done!
Documentation
-------------
Extensive documentation is available online: https://docs.tutor.overhang.io/
Is there a problem?
-------------------
Please follow the instructions from the `troubleshooting section <https://docs.tutor.overhang.io/troubleshooting.html>`__ in the docs.
.. _readme_support_start:
Support
-------
To get community support, go to the official Open edX discussion forum: https://discuss.openedx.org. For official support, please subscribe to a Long Term Support (LTS) license at https://overhang.io/tutor/pricing.
.. _readme_support_end:
.. _readme_contributing_start:
Contributing
------------
We welcome contributions to Tutor! To learn how you can contribute, please check the relevant section of the Tutor docs: `https://docs.tutor.overhang.io/tutor.html#contributing <https://docs.tutor.overhang.io/tutor.html#contributing>`__.
.. _readme_contributing_end: