Unable to change Compute Offering, if the identical Disk Offering is linked to it

[s-seitz]

ISSUE TYPE

• Bug Report

COMPONENT NAME

 API

CLOUDSTACK VERSION

4.17.0.1-shapeblue0

CONFIGURATION

OS / ENVIRONMENT

Ubuntu 20.04.5 LTS, obviously not relevant

SUMMARY

If different Compute offerings have the identical Disk offering linked to, it is impossible to change ("Scale") the particular offerings for a VM.
Instead following error is raised: "Volume [UUID] already have the new disk offering [UUID] provided."

STEPS TO REPRODUCE

* Create a unique Disk offering
* Create at least two dfferent Compute offerings, linking the formerly created Disk offering to both of them.
* Create a VM with one of the formerly created Compute offerings
* Power down the VM (in our case we do not use dynamic scalability)
* Scale the VM to use the other created Compute offering.

EXPECTED RESULTS

No error, just change to the values of the given Compute Offering without touching the Disk, as there's no need to since the Disk Offering stays the same.

ACTUAL RESULTS

An error is raised "Volume [UUID] already have the new disk offering [UUID] provided.

[shwstppr]

@s-seitz Thank you for reporting the issue. I've created PR #6688 to fix it cc @harikrishna-patnala

[shwstppr]

Fixed with #6688