Feature Overview (aka. Goal Summary)  

Switching from ostree to bootc increased update sizes due to lack of delta-updates. Until a long term solution is available for bootc, ostree delta update mechanism can be used as workaround. 

Goals (aka. expected user outcomes)

The goal of this to document the required procedure (in MicroShift docs or KCS), and have a e2e test in MicroShift CI

Requirements (aka. Acceptance Criteria):

see goals.

Out of Scope

• a long term solution for delta updates // update size reduction. that is tracked via  BIFROST-822

Background

n/a

Customer Considerations

this is based on customer feedback from image mode tech preview phase

Documentation Considerations

see goals

Interoperability Considerations

Depends on RHEL team to continue to support ostree delta images in RHEL9.