With Tutor, all Open edX deployment parameters are stored in a single ``config.yml`` file. This is the file that is generated when you run ``tutor local quickstart`` or ``tutor config save``. To view the content of this file, run::
By default, this file contains only the required configuration parameters for running the platform. Optional configuration parameters may also be specified to modify the default behaviour. To do so, you can edit the ``config.yml`` file manually::
vim $(tutor config printroot)/config.yml
Alternatively, you can set each parameter from the command line::
Once the base configuration is created or updated, the environment is automatically re-generated. The environment is the set of all files required to manage an Open edX platform: Dockerfile, ``lms.env.json``, settings files, etc. You can view the environment files in the ``env`` folder::
With an up-to-date environment, Tutor is ready to launch an Open edX platform and perform usual operations. Below, we document some of the configuration parameters.
By default, a running Open edX platform deployed with Tutor includes all necessary 3rd-party services, such as MySQL, MongoDb, etc. But it's also possible to store data on a separate database, such as `Amazon RDS <https://aws.amazon.com/rds/>`_. For instance, to store data on an external MySQL database, set the following configuration::
By activating this feature, a free SSL/TLS certificate from the `Let's Encrypt <https://letsencrypt.org/>`_ certificate authority will be created for your platform. With this feature, **your platform will no longer be accessible in HTTP**. Calls to http urls will be redirected to https url.
The following DNS records must exist and point to your server::
LMS_HOST (e.g: myopenedx.com)
preview.LMS_HOST (e.g: preview.myopenedx.com)
CMS_HOST (e.g: studio.myopenedx.com)
Thus, **this feature will (probably) not work in development** because the DNS records will (probably) not point to your development machine.
With `notes <https://edx.readthedocs.io/projects/open-edx-building-and-running-a-course/en/open-release-hawthorn.master/exercises_tools/notes.html?highlight=notes>`_, students can annotate portions of the courseware.
You should beware that the ``notes.<LMS_HOST>`` domain name should be activated and point to your server. For instance, if your LMS is hosted at http://myopenedx.com, the notes service should be found at http://notes.myopenedx.com.
