docs: clarify partial vs lazy pulling of images#28978
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I don't think we need to mention "true lazy pulling". It is enough to name it "lazy pulling"
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The performance tutorial calls Podman's zstd:chunked / eStargz support "lazy pulling", which isn't accurate. By itself Podman only does partial pulling: it skips layer content it already has, but the image is still fully pulled before a container runs. Real lazy pulling, where the image is mounted before the download finishes, needs an external snapshotter such as stargz-snapshotter. Rename the section to "partial pulling" and add a sentence spelling out the difference, as @giuseppe suggested on the issue. Fixes: podman-container-tools#24947 Signed-off-by: Grzegorz Szczepanczyk <g.szczepanczyk@getprintbox.com>
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Podman's built-in
zstd:chunked/ eStargz support is documented as "lazy pulling", but on its own Podman only does partial pulling — the image is still fully pulled before a container runs. This renames it to "partial pulling" and adds a short note on the difference, per @giuseppe on the issue.Checklist
git commit -s).Fixes: #24947in commit message (if applicable)make validatepr(format/lint checks)Noneif no user-facing changes)Does this PR introduce a user-facing change?