Is docker commit an atomic operation?

Question

Is docker commit an atomic operation?

Meaning, does it create a consistent snapshot of the container's file-system at the moment of its execution?

possible duplicate of [docker commit running container](http://stackoverflow.com/questions/23989845/docker-commit-running-container) — helmbert, Jul 07 '15 at 15:40
@helmbert, notice that question was not answered, so closing this one would only reduce the chance of any of them being answered. — Assaf Lavie, Jul 07 '15 at 15:42

score 2 · Answer 1 · answered Jul 07 '15 at 15:56

docker commit is not an atomic operation.

The only way to accomplish an atomic commit would be to take advantage of filesystem- or storage driver- specific features to support snapshotting, and to the best of my knowledge there is no such support in Docker right now. Absent this support, there is always the chance that a file may be modified between the time the commit operation starts and the time it completes.

Is docker commit an atomic operation?

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