2.3. Upgrading OnTask ¶

If you are upgrading OnTask from a version lower than 2.8 to 2.8 or later, you need to disable the crontab used to execute tasks asynchronously from the web server. Starting in version 2.8 those tasks are executed by an application called celery that is managed using supervisor (see Configure the Distributed Task Queue ).

2.3.1. Are you upgrading from version < 4.0 to 4.2? ¶

The upgrade to 4.0 or later requires Python versions 2.7 and 3.6 both installed and available in the system. Django versions 2.0 and later require Python 3 but certain additional libraries used by OnTask have not been fully ported yet and still require the use of Python 2.7. Make sure both versions are available before proceeding to the upgrade.

2.3.2. Are you upgrading from version < 4.3 to 4.3? ¶

The upgrade to 4.3 or later no longer requires two versions of Python. It only requires Python 3. Make sure the application is only using version 3.

2.3.3. Are you upgrading to version 5.2? ¶

Version 5.2 contains a significant reorganization of the file structure in the tool, and as a consequence there are several files that need to be manually relocated:

The configuration file needs to be moved from src/ontask/settings to settings .
The files in the media folder need to be moved to ontask/media .

2.3.4. Are you upgrading from a version prior to 9.0? ¶

If you are upgrading from a version older than 9.0, the following SQL commands need to be directly executed in the database (using the database client):

           INSERT INTO django_migrations (app, name, applied) VALUES ('ontask', '0001_authtools_user_initial', CURRENT_TIMESTAMP);
INSERT INTO django_migrations (app, name, applied) VALUES ('ontask', '0002_django18', CURRENT_TIMESTAMP);
INSERT INTO django_migrations (app, name, applied) VALUES ('ontask', '0003_auto_20160128_0912', CURRENT_TIMESTAMP);
DELETE FROM django_migrations WHERE app = 'authtools';
UPDATE django_content_type SET app_label = 'ontask' WHERE app_label = 'authtools' AND model = 'user';

          

You can run these queries with the command:

           python3 manage.py upgrade_9

          

These queries have to execute before the the command python3 manage.py migrate .

2.3.5. Upgrade Steps ¶

If you have OnTask already configured and running, here are the steps to follow to upgrade to a new version:

Create a backup of the database to be able to restore the state of the tool before the upgrade process.
Stop the apache web server.
Open a terminal and use a command interpreter to execute the following commands.
Set the current folder of the interpreter to the main project folder.
Verify that the configuration file is in the folder settings .
Pull the code for the new version from the repository:
```
git pull
```

Refresh the list of requirements:

             python3 -m pip install -r requirements/production.txt

            

Go to the sub-folder containing the tool documentation:
```
cd docs
```
Re-create the tool documentation and place it in the appropriate folder:
```
make clean html copy_to_docs
```
Go back to the project folder:
```
cd ..
```
Collect all files to be served statically:
```
python3 manage.py collectstatic
```
Apply the migrations to the database (see notes above about potential previous steps):
```
python3 manage.py migrate
```
Check that the configuration is ready to run:
```
python3 manage.py check --deploy
```

Restart the supervisord configuration:

             supervisorctl -c ../supervisor.conf reload

            

Flush the cache:
```
redis-cli flushall
```
Restart the apache web server and check the new version is properly installed.