As part of the migration to OpenShift, additional security measures have been employed.
In practice, this means that the way in which you access your website's WebDAV has changed slightly and now requires new credentials.
Once you have retrieved your credentials, mounting or otherwise accessing WebDAV remains unchanged.
1. Access the OpenShift portal and login with your CERN account: https://drupal.cern.ch/k8s/cluster/projects.
2. Select the project (i.e. website) whose WebDAV you wish to access.

3. If not already selected, change to Administrator by clicking the drop-down menu on the left hand side.

4. Also in the menu on the left hand side, unfold Operators and choose Installed Operators.

5. Click on Create Drupal Website (and validate that you are indeed in the correct Project).

The button may have a confusing name, but clicking it takes you to the following page with a list of current sites.
6. Click on the website.

7. Click the YAML tab at the top.

8. You will now be able to find your WebDAV password.
CTRL + F (or CMD + F on MacOS) for webDAVPassword, or merely scroll a bit down in the file. Copy the password.

Access Through a Browser
In order to access your website's WebDAV through a browser, go to https://<your_website>/_webdav.
A pop-up prompting you for your username and password will show.
Enter username admin.
Enter as password the randomly_generated_password you copied in step 8.
Access Through a WebDAV Client
In order to access your website's WebDAV through a client, enter the following:
Enter URL https://<your_website>/_webdav.
Enter username admin.
Enter as password the randomly_generated_password you copied in step 8.
We recommend the Cyberduck client (Windows and MacOS), see this guide.