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Add small note about AUFS layer limitation 

Docker-DCO-1.1-Signed-off-by: Michaël Pailloncy <mpapo.dev@gmail.com> (github: mpapo)
This commit is contained in:
Michaël Pailloncy 2014-07-07 23:17:54 +02:00
parent 37309f37fa
commit d91d381856
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7
docs/sources/userguide/dockerimages.md
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@ -328,6 +328,13 @@ instructions have executed we're left with the `324104cde6ad` image
(also helpfully tagged as `ouruser/sinatra:v2`) and all intermediate
containers will get removed to clean things up.
> **Note:**
> Due to a AUFS limitation, an image can't have more than 127 layers
> (see [this PR](https://github.com/dotcloud/docker/pull/2897)).
> This means that a Dockerfile can't create more than 127 containers
> during a build (each RUN command creates a new container).
> An image flatten strategy is discussed [here](https://github.com/dotcloud/docker/issues/332).
We can then create a container from our new image.
$ sudo docker run -t -i ouruser/sinatra:v2 /bin/bash