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Deprecate the 'checksum' image property
Depends-on: https://review.opendev.org/#/c/708761/ Change-Id: If67fe7ad9caed8d3d2fd4e6f84bd31f7a67695f7 (cherry picked from commit 4a64d97)
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releasenotes/notes/deprecate-checksum-a602853403e1c4a8.yaml
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--- | ||
deprecations: | ||
- | | ||
The Image ``checksum`` property contains an MD5 hash of the image data | ||
associated with an image. MD5 has not been considered secure for some | ||
time, and in order to comply with various security standards (for | ||
example, FIPS), an implementation of the MD5 algorithm may not be | ||
available on glance nodes. | ||
The secure "multihash" image properties, ``os_hash_algo`` and | ||
``os_hash_value`` have been available on images since glance | ||
version 17.0.0 (Rocky). Until this point, the MD5 ``checksum`` | ||
property has been populated solely for backward compatability. It | ||
is not, however, necessary for validating downloaded image data. | ||
Thus, we are announcing the DEPRECATION in this release of the | ||
image ``checksum`` property. It will remain as an image property, | ||
but beginning with the Victoria release, the ``checksum`` will *not* | ||
be populated on new images. | ||
Users should instead rely on the secure "multihash" to validate image | ||
downloads. The python-glanceclient, for example, has been using multihash | ||
validation (with an optional MD5 fallback) since version 2.13.0 (Rocky). |