spaces_region: (character) String containing a spaces region. If missing, defaults to value stored in an environment variable DO_SPACES_REGION.
spaces_key: (character) String containing a spaces access key. If missing, defaults to value stored in an environment variable DO_SPACES_ACCESS_KEY.
spaces_secret: (character) String containing the secret associated with the spaces key. If missing, defaults to value stored in an environment variable DO_SPACES_SECRET_KEY.