Improve script handling of clusters with a mix of LVM-Thin and ZFS hosts

[Builder-DE-TH]

📌 Task summary

Handle local-lvm and local-zfs correctly

📋 Task details

In a cluster with a mix of hosts which is configured in storage.cfg as per best practise, on a ZFS node, all lxc creation scripts error with

⚠️  Warning: Storage 'local-lvm' is disabled!   
                     
  Please enable the storage first.   

The script will then continue and present me to my local-zfs pool to install to and complete fine.

However, the install from saved defaults option will fail when you try to run it complaining about no local-lvm.

[MickLesk]

Which default.vars? Should not fail.

[Builder-DE-TH]

You do an advanced install, are prompted to save the settings as defaults for the app in question and say yes, when you run it from the app defaults option again it fails because of no lvm-thin.