URL:
Reporter RHNID:
Section: -
Language: en-US (English)
Workaround:

Description: In the last presentation and guided exercise of chapter 6, a procedure is shown to upgrade network devices.  The plays basically update every single network device simultaneously, which is a recipe for rendering a network unusable.  There's no real discussion of using tools like serial to perform rolling updates to make sure that we don't have a half-upgraded network – see https://docs.ansible.com/ansible/latest/user_guide/guide_rolling_upgrade.html.

To some extent this might be a limitation of the network configuration chosen by the author at this point in the course, but we do have sufficient redundant hardware in the classroom environment if configured properly to do credible rolling updates.