We are psyched to announce the release of: python-glanceclient 2.13.0: OpenStack Image API Client Library This release is part of the rocky stable release series. The source is available from: https://git.openstack.org/cgit/openstack/python-glanceclient Download the package from: https://pypi.org/project/python-glanceclient Please report issues through launchpad: https://bugs.launchpad.net/python-glanceclient For more details, please see below. 2.13.0 ^^^^^^ New Features ************ * This release adds verification of image data downloads using the Glance "multihash" feature introduced in the OpenStack Rocky release. When the "os_hash_value" is populated on an image, the glanceclient will verify this value by computing the hexdigest of the downloaded data using the algorithm specified by the image's "os_hash_algo" property. Because the secure hash algorithm specified is determined by the cloud provider, it is possible that the "os_hash_algo" may identify an algorithm not available in the version of the Python "hashlib" library used by the client. In such a case the download will fail due to an unsupported hash type. In the event this occurs, a new option, "--allow-md5-fallback", is introduced to the "image- download" command. When present, this option will allow the glanceclient to use the legacy MD5 checksum to verify the downloaded data if the secure hash algorithm specified by the "os_hash_algo" image property is not supported. Note that the fallback is *not* used in the case where the algorithm is supported but the hexdigest of the downloaded data does not match the "os_hash_value". In that case the download fails regardless of whether the option is present or not. Whether using the "--allow-md5-fallback" option is a good idea depends upon the user's expectations for the verification. MD5 is an insecure hashing algorithm, so if you are interested in making sure that the downloaded image data has not been replaced by a datastream carefully crafted to have the same MD5 checksum, then you should not use the fallback. If, however, you are using Glance in a trusted environment and your interest is simply to verify that no bits have flipped during the data transfer, the MD5 fallback is sufficient for that purpose. That being said, it is our recommendation that the multihash should be used whenever possible. Security Issues *************** * This release of the glanceclient uses the Glance "multihash" feature, introduced in Rocky, to use a secure hashing algorithm to verify the integrity of downloaded data. Legacy images without the "multihash" image properties ("os_hash_algo" and "os_hash_value") are verified using the MD5 "checksum" image property. Changes in python-glanceclient 2.12.1..2.13.0 --------------------------------------------- 395d0f1 Use "multihash" for data download validation 0f1b1bf Refactor periodic "tips" jobs b672c6a import zuul job settings from project-config Diffstat (except docs and test files) ------------------------------------- .zuul.yaml | 36 ++- glanceclient/common/utils.py | 20 ++ glanceclient/v2/images.py | 63 +++++- glanceclient/v2/shell.py | 14 +- ...ash-download-verification-596e91bf7b68e7db.yaml | 41 ++++ 9 files changed, 426 insertions(+), 28 deletions(-)