Problem description

The maximum number of layers is undocumented.

Problem location

I couldn't find the information I wanted. I expected to find it near the following URL: https://docs.docker.com/engine/reference/builder/

Suggestions for a fix

The maximum number of layers that can exist in an image's history (127 layers) is not documented anywhere. This seems to be a limitation imposed by AUFS, from what I can tell.

Searching for phrases such as "max layers", "layer limit", "image depth limit", "maximum dockerfile steps", "max history length", etc. come up empty.