Followup on #307

So... when passing a variable like this in the role:

encryption_key: '{"kdf": null, "created": "2022-09-07T08:46:13+02:00", "modified": "2022-09-07T08:46:13+02:00", "data": "xxx", "fingerprint": "xxx"}'

it ends up as the following string in the proxmox_storage.py lib:

"{'kdf': None, 'created': '2022-09-07T08:46:13+02:00', 'modified': '2022-09-07T08:46:13+02:00', 'data': 'xxx', 'fingerprint': 'xxx'}"

which crashes since it's no longer a valid JSON.

"msg": "encryption_key needs to be valid JSON or set to 'autogen'."

If we change the encryption_key parameter to raw instead of string, it won't alter the format/content of the json string. After that we parse the raw json object to a string if it's not autogen and send that to the PVE api.

• I tested with 'autogen' and it works properly
• I tested with an invalid json and it fails with the proper error message
• I tested with a valid json encryption key and it passed