[release-1.29] fix: Change the order of updating vmss vm and vmss #7541
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: MartinForReal, nilo19 The full list of commands accepted by this bot can be found here. The pull request process is described here
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What type of PR is this?
/kind bug
What this PR does / why we need it:
Updating the VM first (before making the matching change to the VMSS) creates an unstable condition where any other component touching the VMSS can cause issues. Modifying it to update the VM last (after changing the VMSS) would make it safe.
Which issue(s) this PR fixes:
Fixes #7509
Special notes for your reviewer:
Does this PR introduce a user-facing change?
Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.: