Specify a storage account name. Leave blank to create a new storage account using the default name "jenkinsarmst".
The maximum length of the Name element is 64 characters, only alphanumeric characters and underscores are valid in the Name,
and the name must start with a letter. Attempting to use other characters, starting the Name with a non-letter character,
or entering a name that is identical to that of another extended property owned by the same storage account,
will result in a status code 400 (Bad Request) error.