Presentation
Zero-Consistency Root Emulation for Unprivileged Container Build
DescriptionDo Linux distribution package managers need the privileged operations they request to actually happen? Apparently not, at least when building container images for HPC applications. We use this observation to implement a root emulation mode using a Linux seccomp filter that intercepts some privileged system calls, does nothing, and returns success to the calling program. This approach provides no consistency whatsoever but appears sufficient to build a wide selection of Dockerfiles, including one that Docker itself cannot build, simplifying fully-unprivileged workflows needed for HPC application containers.
Event Type
Workshop
TimeSunday, 17 November 20242:30pm - 3pm EST
LocationB313
Cloud Computing
Middleware and System Software
State of the Practice
W
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