Module 30 · Session 4: Release and rollback
Session 4: release with a runbook and a rollback drill
In short
Session 4 releases the group app to a practice server with a runbook read out step by step, then deliberately releases a broken version to drill a rollback against a timer. Every deviation fixes the runbook on the spot.
After this lesson you can
- Run the group release runbook with one person reading the steps aloud and one person typing
- Drill a rollback against a timer until the old version is serving users again
- Note every deviation from the runbook and fix the runbook in the same session
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