Install Tutor

Requirements

  • Supported OS: Tutor runs on any 64-bit, UNIX-based system. It was also reported to work on Windows.

  • Required software:

Warning

Do not attempt to simply run apt-get install docker docker-compose on older Ubuntu platforms, such as 16.04 (Xenial), as you will get older versions of these utilities.

  • Ports 80 and 443 should be open. If other web services run on these ports, check the tutorial on how to setup a web proxy.

  • Hardware:

    • Minimum configuration: 4 GB RAM, 2 CPU, 8 GB disk space

    • Recommended configuration: 8 GB RAM, 4 CPU, 25 GB disk space

Note

On Mac OS, by default, containers are allocated 2 GB of RAM, which is not enough. You should follow these instructions from the official Docker documentation to allocate at least 4-5 GB to the Docker daemon. If the deployment fails because of insufficient memory during database migrations, check the relevant section in the troubleshooting guide.

Direct binary download

The latest binaries can be downloaded from https://github.com/overhangio/tutor/releases. From the command line:

sudo curl -L "https://github.com/overhangio/tutor/releases/download/v12.1.7/tutor-$(uname -s)_$(uname -m)" -o /usr/local/bin/tutor
sudo chmod 0755 /usr/local/bin/tutor

This is the simplest and recommended installation method for most people. Note however that you will not be able to use custom plugins with this pre-compiled binary. The only plugins you can use with this approach are those that are already bundled with the binary: see the existing plugins.

Alternative installation methods

If you would like to inspect the Tutor source code, you are most welcome to install Tutor from Pypi or directly from the Github repository. You will need python >= 3.6 with pip and the libyaml development headers. On Ubuntu, these requirements can be installed by running:

sudo apt install python3 python3-pip libyaml-dev

Installing from pypi

pip install tutor

Installing from source

git clone https://github.com/overhangio/tutor
cd tutor
pip install -e .

DNS records

When running a server in production, it is necessary to define DNS records which will make it possible to access your Open edX platform by name in your browser. The precise procedure to create DNS records vary from one provider to the next and is beyond the scope of these docs. You should create a record of type A with a name equal to your LMS hostname (given by tutor config printvalue LMS_HOST) and a value that indicates the IP address of your server. Applications other than the LMS, such as the studio, ecommerce, etc. typically reside in subdomains of the LMS. Thus, you should also create a CNAME record to point all subdomains of the LMS to the LMS_HOST.

For instance, the demo Open edX server that runs at http://demo.openedx.overhang.io has the following DNS records:

demo.openedx 1800 IN A 172.105.89.208
*.demo.openedx 1800 IN CNAME demo.openedx.overhang.io.

Zero-click AWS installation

Tutor can be launched on Amazon Web Services very quickly with the official Tutor AMI. Shell access is not required, as all configuration will happen through the Tutor web user interface. For detailed installation instructions, we recommend watching the following video:

Upgrading

With Tutor, it is very easy to upgrade to a more recent Open edX or Tutor release. Just install the latest tutor version (using either methods above) and run the quickstart command again. If you have customised your docker images, you will have to re-build them prior to running quickstart.

quickstart should take care of automatically running the upgrade process. If for some reason you need to manually upgrade from an Open edX release to the next, you should run tutor local upgrade. For instance, to upgrade from Koa to Lilac, run:

tutor local upgrade --from=koa

Autocomplete

Tutor is built on top of Click, which is a great library for building command line interface (CLI) tools. As such, Tutor benefits from all Click features, including auto-completion. After installing Tutor, auto-completion can be enabled in bash by running:

_TUTOR_COMPLETE=bash_source tutor >> ~/.bashrc

If you are running zsh, run instead:

_TUTOR_COMPLETE=zsh_source tutor >> ~/.zshrc

After opening a new shell, you can test auto-completion by typing:

tutor <tab><tab>

Uninstallation

It is fairly easy to completely uninstall Tutor and to delete the Open edX platforms that is running locally.

First of all, stop any locally-running platform:

tutor local stop
tutor dev stop

Then, delete all data associated to your Open edX platform:

# WARNING: this step is irreversible
sudo rm -rf "$(tutor config printroot)"

Finally, uninstall Tutor itself:

# If you installed tutor from source
pip uninstall tutor

# If you downloaded the tutor binary
sudo rm /usr/local/bin/tutor