This is a one-click install of [Open edX](https://openedx.org), both for production and local development, inside docker containers. As a bonus, this also builds a mobile Android app for your platform.
Yes :) When running `make all`, you will be asked some questions about the configuration of your Open edX platform. Then, all the components for a functional Open edX platform will be downloaded and assembled to and you will have both an LMS and a CMS running behind a web server on port 80, ready for production. You should be able to access your platform at the address you gave during the configuration phase.
To be honest, I really don't like 1-click installs :-p They tend to hide much of the important details. So I strongly recommend you read the more detailed instructions below to understand what is going on exactly and to troubleshoot potential issues. Also, instructions are given to setup a local development environment.
This might seem too simple to be true, but there's no magic -- just good packaging of already existing Open edX code. The code for building the Docker images is 100% available and fits in less than 1000 lines of code, in this repository.
The only prerequisite for running this is Python and a working docker install. You will need both docker and docker-compose. Follow the instructions from the official documentation:
Note that the production web server container will bind to port 80, so if you already have a web server running (Apache or Nginx, for instance), you should stop it.
You should be able to run Open edX on any platform that supports Docker and Python, including Mac OS and Windows. For now, only Ubuntu 16.04 was tested but we have no reason to believe the install would not work on a different OS.
At a minimum, the server running the containers should have 4 Gb of RAM; otherwise, the deployment procedure will crash during migrations (see the [troubleshooting](#troubleshooting) section).
This is the only non-automatic step in the install process. You will be asked various questions about your Open edX platform and appropriate configuration files will be generated. If you would like to automate this step then you should run `make configure` interactively once. After that, you will have a `config.json` file at the root of the repository. Just upload it to wherever you want to run Open edX and then run `./configure --silent` instead of `make configure`. All values from `config.json` will be automatically loaded.
You will need to download the docker images from [Docker Hub](https://hub.docker.com/r/regis/openedx/). Depending on your bandwidth, this might take a long time. Minor image updates will be incremental, and thus much faster.
These commands should be run just once. They will create the required databases tables, apply database migrations and generate static assets, such as images, stylesheets and Javascript dependencies.
If migrations are stopped with a `Killed` message, this certainly means the docker containers don't have enough RAM. See the [troubleshooting](#troubleshooting) section.
This will launch the various docker containers required for your Open edX platform. The LMS and the Studio will then be reachable at the domain name you specified during the configuration step.
If all goes well, the debuggable APK for your platform should then be available in ./data/android. To obtain a release APK, you will need to obtain credentials from the app store and add them to `config/android/gradle.properties`. Then run:
Building the Android app for an Open edX platform is currently labeled as a **beta feature** because it was not fully tested yet. In particular, there is no easy mechanism for overriding the edX assets in the mobile app. This is still a work-in-progress.
In addition to running Open edX in production, you can use the docker containers for local development. This means you can hack on Open edX without setting up a Virtual Machine. Essentially, this replaces the devstack provided by edX.
(Note: containers are built on the Ginkgo release. If you are working on a different version of Open edX, you will have to rebuild the images with a different `EDX_PLATFORM_VERSION` argument. You may also want to change the `EDX_PLATFORM_REPOSITORY` argument to point to your own fork of edx-platform.)
In this example, you should have a `mysettings.py` file in `edx-platform/lms/envs` and `edx-platform/cms/envs`. Development settings file for docker are a bit different from stock devstack settings. For valid development settings files, check [`config/openedx/universal/lms/development.py`](https://github.com/regisb/openedx-docker/blob/master/config/openedx/universal/lms/development.py) and [`config/openedx/universal/cms/development.py`](https://github.com/regisb/openedx-docker/blob/master/config/openedx/universal/cms/development.py)
This will open a shell in the LMS (or CMS) container. You can then run just any command you are used to. For example, install node requirements, collect assets and run a local server:
The LMS and CMS containers require at least 4 GB RAM, in particular to run the Open edX SQL migrations. On Docker for Mac, by default, containers are allocated at most 2 GB of RAM. On Mac OS, if the `make all` command dies after displaying "Running migrations", you most probably need to increase the allocated RAM. [Follow these instructions from the official Docker documentation](https://docs.docker.com/docker-for-mac/#advanced).
This might occur when you run a `paver` command. `/dev/null` eats the actual error, so you will have to run the command manually. Run `make lms` (or `make cms`) to open a bash session and then:
Of course, you should replace `development` with your own settings. The error produced should help you better understand what is happening.
### `ValueError: Unable to configure handler 'local'`
ValueError: Unable to configure handler 'local': [Errno 2] No such file or directory
This will occur if you try to run a development environment without patching the LOGGING configuration, as indicated in the [development](#for-developers) section above. Maybe you correctly patched the development settings, but they are not taken into account? For instance, you might have correctly defined the `EDX_PLATFORM_SETTINGS` environment variable, but `paver` uses the `devstack` settings (which does not patch the LOGGING variable). This is because calling `paver lms --settings=development` or `paver cms --settings=development` ignores the `--settings` argument. Yes, it might be considered an edx-platform bug... Instead, you should run the `update_assets` and `runserver` commands, as explained above.
### "`TypeError: get_logger_config() got an unexpected keyword argument 'debug'`"
This might occur when you try to run the latest version of `edx-platform`, and not a version close to `gingko.master`. It is no longer necessary to patch the `LOGGING` configuration in the latest `edx-platform` releases, as indicated in the [development](#for-developers) section above, so you should remove the call to `get_logger_config` altogether from your development settings.
This project is the follow-up of my work on an [install from scratch of Open edX](https://github.com/regisb/openedx-install). It does not rely on any hack or complex deployment script. In particular, we do not use the Open edX [Ansible deployment playbooks](https://github.com/edx/configuration/). That means that the folks at edX.org are *not* responsible for troubleshooting issues of this project. Please don't bother Ned ;-)
If you have a problem, feel free to open a [Github issue](https://github.com/regisb/openedx-docker/issues) that describes:
- the problem you are facing: this includes the exact error message, or a screenshot of the error.
- what action triggered the error: which command line instruction, which url you tried to access, etc.
- any error logs that you may find: you may want to take a look at the files in `data/lms/logs`, for instance.
We have decided not to include the installation of SSL certificates in this project for running an Open edX platform on HTTPS. This is because there are too many different ways to generate SSL certificates. In particular, we should not assume that everyone uses [Let's Encrypt](http://letsencrypt.org/) certificates. If you decide to run your Open edX platform behind HTTPS, you will have to modify:
* the generated nginx configuration files
* the `lms.env.json` and `cms.env.json` files: look for the `LMS_ROOT_URL` and `CMS_ROOT_URL` variables and replace "http" by "https".
Those extra services were considered low priority while developing this project. However, most of them should not be too hard to add to a standard install. If you need one or more of these services, feel free to let me know by opening an issue.
Pull requests will be happily examined! However, we should be careful to keep the project lean and simple: both to use and to modify. Optional features should not make the user experience more complex. Instead, documentation on how to add the feature is preferred.
