Defence Against the Docker Arts

Re:Defence Against the Docker Arts by guiriduro on Thursday April 04, 2019 @04:46AM (#19570301)

But aren't they just an implementation detail, albeit a useful one? You'd find copy-on-write deltas in modern snapshotting filesystems too.

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Re:Defence Against the Docker Arts by jacques_chester on Thursday April 04, 2019 @05:53AM (#19570568)

> But aren't they just an implementation detail, albeit a useful one?

Part of what we do in Cloud Native Buildpacks is to use the layer abstraction more aggressively to make image updating more efficient. That requires taking care with the ordering and contents of each layer, so that they can be replaced individually.

Putting it another way: we don't see the image as the unit of work and distribution. We're focused on layers as the central concept.

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Re:Defence Against the Docker Arts by bboreham on Thursday April 04, 2019 @05:45AM (#19570538)

Parent was comparing against a tarball, not a snapshotting filesystem.

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