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avoid parallel pulls of the same image
To suit the needs of OpenShift CI [1], we need to avoid parallel pulls. While we have an open PR against containers/image [2] to detect parallel copy operations across processes, we are still far from getting this merged; it must be split into smaller chunks and we plan to tackle in the next few months but who knows how long this might take. To support that in CRI-O, however, we enjoy the benefit of running a daemon where we can easily avoid redundantly pulling the same image in parallel as we're in the same process space and can do all synchronisation in memory. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1785390 [2] containers/image#611 Signed-off-by: Valentin Rothberg <[email protected]>
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