Add prelude to Rocky releasenotes
Also removes the bullet point prelude that was in b3. Change-Id: I3a5c71a93ab404f4a3bb236270706e97e0b12b0d
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---
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---
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prelude: >
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- The ``glance-manage`` utility has been updated to address OpenStack
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Security Note OSSN-0075.
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security:
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security:
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The ``glance-manage`` tool has been updated to address `OSSN-0075`_.
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The ``glance-manage`` tool has been updated to address `OSSN-0075`_.
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---
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---
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prelude: >
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Automatic image conversion plugin for Interoperable Image Import. This
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release introduces a new plugin that can be used to convert images to
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specific format automatically upon image import.
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features:
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features:
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Automatic image conversion plugin for Interoperable Image Import. With
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Automatic image conversion plugin for Interoperable Image Import. With
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---
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prelude: |
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This release of OpenStack Glance introduces 2 new API versions. Images
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API v2.7 adds support and modifications for the Hidden Images and
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Multihash features introduced during Rocky cycle. Version 2.8 is
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included as an optional EXPERIMENTAL API for testing and preparing for
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multiple back-end support.
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Rocky development cycle marks long waited milestone on Glance work. The
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Images API v1 which has been deprecated for years is finally removed and
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not available at all in Glance version 17.0.0 forward.
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Some security aspects were tackled for this release. Multihash, providing
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secure hashing for image data with future proof options marks the end of
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relying upon MD5 checksums when verifying image payloads. OSSN-0075
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migitation lessens the risk of ID reusability on those very rare cases
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when a database purge is necessary.
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When delayed delete is enabled operators are able to recover image records
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if the scrubber has been stopped before the data removal interval. While
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the image metadata is still not preserved in these cases, this provides a
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way to save the image data on accidental deletes.
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Due to increasing core counts on modern servers Glance services started
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consuming huge amounts of resources as the default was to spin up equal
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amount of workers to logical CPUs seen on the host. This automatic scaling
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was capped to 8 workers limiting the resources consumed. While each worker
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can handle a pool of connections this limit should be sufficient for most
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clouds. Large deployments should monitor their performance after upgrade.
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When using Interoperable Image Import workflow, the cloud operators can
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now enable automatic image conversion to desired format. When the plugin
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is enabled end-users do not have any input to its operation but their
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local checksum might not match with checksums recorded in Glance.
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