Currently glanceclient doesn't enforce disk-format or container-format
presence in the command line on image-create when providing image data
(with --file, --location, --copy-from), which means that the POST
request is made with the whole image and error is reported by Glance
API.
This post enforces presence of those arguments when image data is
provided so we can get the error quicker and avoid sending unnecessary
data over the network.
Change-Id: I5914fa9cfef190a028b374005adbf3a804b1b677
Closes-Bug: #1309272