getUserData

Retrieve Base64 encoded User Data contents into the user_data_base64 attribute. A SHA-1 hash of the User Data contents will always be present in the user_data attribute. Defaults to false.

NOTE: At least one of filter, instance_tags, or instance_id must be specified. NOTE: If anything other than a single match is returned by the search, this call will fail. Ensure that your search is specific enough to return a single Instance ID only.