Add longhorn support message in VM clone dialog

[torchiaf]

Summary

• Re-enabling Longhorn V2 unsupported dialogs and Add a warning message in the dialog layouts; the actions continue to be disabled:
  • VM -> Clone, Snapshot (todo)
  • Volume -> Clone, Export, Snapshot

PR Checklist

• Is this a multi-tenancy feature/bug?
  • Yes, the relevant RBAC changes are at:
• Do we need to backport changes to the old Rancher UI, such as RKE1?
  • Yes, the relevant PR is at:
• Are backend engineers aware of UI changes?
  • Yes, the backend owner is:

Related Issue harvester/harvester#6989

Occurred changes and/or fixed issues

Technical notes summary

Areas or cases that should be tested

Areas which could experience regressions

Screenshot/Video

[torchiaf]

@tserong @Vicente-Cheng I also disabled the VM -> Migrate action, for those Vms that contain Longhorn v2 volumes. Is it correct ?

[a110605]

nit: it's fine to hard code the doc url wthin en-us.yaml in harvester/dashboard as we will only maintain v1.4.x release in this repo.

But when we port the same change to harvester/harvester-ui-extension. The doc link should be varaible. Like

dashboard/pkg/harvester/components/settings/storage-network.vue

Line 214 in b4a6ed9

<t k="harvester.setting.storageNetwork.tip" :raw="true" :url="storageNetworkExampleLink" />

[tserong]

@tserong @Vicente-Cheng I also disabled the VM -> Migrate action, for those Vms that contain Longhorn v2 volumes. Is it correct ?

I'm not sure about this, for two reasons:

1. I don't think it's strictly necessary to disable in the GUI, as the admission webhook will notice when a VM can't be migrated and will prevent the migration anyway, e.g:
   
2. Right now, LHv2 volumes can't be migrated, but in future, it will be possible to migrate them. So it's not really about the fact that an LHv2 volume is attached, it's actually whether any attached volume has accessmode RWO or RWX. If it's RWO, it can't be migrated, and if it's RWX it probably can be.

[a110605]

Test good to me.

Show the unsupported message to below actions

• Longhorn v2 volume: clone, export image, take snapshot actions.
• VM with longhorn v2 volume : clone, take VM snapshot, migrate actions

[torchiaf]

@tserong @a110605 since we have the webhook validation for the Migrate action, I'd remove the limitation from the UI.

[torchiaf]

@mergify backport release-harvester-v1.4

[mergify]

backport release-harvester-v1.4

✅ Backports have been created

• #1233 Add longhorn support message in VM clone dialog (backport #1223) has been created for branch release-harvester-v1.4