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Document that zstd:chunked doesn’t make sense with encryption #2117

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mtrmac opened this issue Aug 8, 2024 · 2 comments · Fixed by #2176
Closed

Document that zstd:chunked doesn’t make sense with encryption #2117

mtrmac opened this issue Aug 8, 2024 · 2 comments · Fixed by #2176

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@mtrmac
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mtrmac commented Aug 8, 2024

Encrypted images don’t benefit from zstd:chunked , and if asked to do so, the code uses non-chunked zstd (ref. containers/image#2485 .)

Around

#compression_format = "gzip"
, and for add_compression option: the documentation in comments and/or man pages [wherever the authoritative source is] should probably note that zstd:chunked is not used for encrypted images [and triggers warnings].

@mtrmac
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mtrmac commented Sep 27, 2024

The documentation needs updating at least in the Podman CLI, perhaps also Buildah and Skopeo; I’ll continue tracking that here instead of filing “investigate” tickets for all projects individually.

@mtrmac
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mtrmac commented Sep 30, 2024

I have filed also Skopeo, Buildah and Podman PRs.

Closing this issue now, so that I don’t have to keep checking whether any of the 4 PRs are still outstanding.

@mtrmac mtrmac closed this as completed Sep 30, 2024
openshift-merge-bot bot pushed a commit to containers/buildah that referenced this issue Oct 1, 2024
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