Docs update: RDS Restore from snapshot guidance

[sj-williams]

Background

Following a recent support session with a CP user looking to test the process of restoring an Aurora RDS cluster from a snapshot, it looks like we could do with updating the user guide on the steps necessary to complete this work.

Namely step 5 of this section

• pausing apply-pipeline is a little more complex now that we have split them into multiple jobs that run in parallel, we should have putting a SKIP file in as a pre-req step to ensure that the manual steps of restore process are not interrupted instead.

• we don't have any supporting documentation for the CP team in our runbooks. We should run through a test scenario of restoring both RDS instances and Aurora clusters using snapshot_identifier, taking note of any differences between these two, and adding a runbook doc for the process (and also update module READMEs if necessary).

Proposed user journey

Approach

Which part of the user docs does this impact

Communicate changes

• [ ] post for #cloud-platform-update
• [ ] Weeknotes item
• [ ] Show the Thing/P&A All Hands/User CoP
• [ ] Announcements channel

Questions / Assumptions

Definition of done

• [ ] readme has been updated
• [ ] user docs have been updated
• [ ] another team member has reviewed
• [ ] smoke tests are green
• [ ] prepare demo for the team

Reference

How to write good user stories