• Don't hardcode fsync in your library

    calendar Jul 20, 2026 · 5 min read · Containers Linux  ·
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    I recently ran into an issue after upgrading the containerd client library to v2.3.0. The root cause was a change in one of containerd's dependencies, continuity, that started enforcing fsync when copying files. containerd/continuity is a library in containerd that provides filesystem utilities: file copying, directory …


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  • When enforcing OCI image spec broke customer containers

    calendar Jun 11, 2026 · 4 min read · Containers  ·
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    A container platform shipped a change to detect CPU architecture mismatches at image pull time. If an image's config says arm64 but the host is amd64, fail fast instead of letting the container start and die with exec format error. The implementation is correct, tests passed and reviewers approved. However, it caused a …


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