Implement UpdateMachine
driver interface method
#102
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Proposed Changes
POC implementation of
UpdateMachine
driver method to updateServerClaims
in case of an in-place-update.Problem Statement:
In the current in-place update flow, the infrastructure resources are not being updated when an OS change in the Shoot spec happens for a respective worker group. This leads to a problem in a setup where you always want to netboot your
Servers
via a change in theServerClaim
image field.Proposed solution:
This PR leverages the newly added
UpdateMachine
interface method of the driver which is triggered whenever an in-place update is ready to being process. In this step, theUpdateMachine
call will figure out whichServerClaim
is affected and will PATCH theimage
field of thatServerClaim
./ref https://github.com/afritzler/machine-controller-manager/tree/enh/machine-update