Support download of template which are registered as Direct Download

##### ISSUE TYPE

* Improvement Request

##### COMPONENT NAME

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Component: template, kvm

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##### CLOUDSTACK VERSION

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4.18

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##### SUMMARY

Support download of template which are registered as Direct Download

Steps to reproduce the issue

1. Register a qcow2 template > select the Direct Download option

2. Launch a vm from the registered template

3. Try to download the template ( images> template> Download template

4. The download of template fails

Screenshot



Expected behavior
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Currently we are storing the direct downloaded templates in primary storage

Cloudstack supports the download of templates only if they are present in the seconday storage.

There could be use-case scenario if a user wants to download the original template which is registered as direct download

Inizia tracciando il workflow di download dei template descritto nell’issue e confronta il modo in cui vengono gestiti i template nello storage primario e quelli nello storage secondario. Riproduci il problema usando un template qcow2 registrato con Direct Download, quindi verifica che il download del template originale abbia successo senza interrompere il percorso esistente dello storage secondario.

Scritto dal modello di indicizzazione a partire dal testo della issue.