Upgrading Oppia server Operating System

For the OppiaMobile servers that Digital Campus runs, and also the Amazon Machine Image (AMI) we maintain, we use Ubuntu server (LTS version). The OS version we currently support is that one the AMI currently uses, using other versions of Ubuntu may or may not work.

For the versions of MySQL, Apache and other system packages, we use the versions that are maintained by the Ubuntu package manager for the Ubuntu version.

Note

We don’t advise upgrading a live OppiaMobile server to a Ubuntu version newer than the version the AMI is running, since usually the default version of Python for each Ubuntu OS is updated, which may require updates in the Oppia server code.

To upgrade your OppiaMoile server to the next supported Ubuntu server use the usual Ubuntu distribution upgrade process.

After upgrading Ubuntu, very likely you will need to rebuild the Python virtual environment, by deleting the old one and re-installing it and the required packages:

• $ sudo rm -r env

• $ virtualenv env

• $ source env/bin/activate

• (env)$ pip install -r django-oppia/requirements.py

You will also need to update the Apache site config for any updated Python version that is used, updating the paths for WSGIDaemonProcess and LoadModule wsgi_module (run mod_wsgi-express module-config to get the updated wsgi_module path)