[gdal-dev] help with (docker) build workflow

[Michael Sumner]

I would like to build GDAL in an image on the basis of a dockerfile used
for CI, I'm confused by the layer process that copies the build outputs for
the final steps

https://github.com/OSGeo/gdal/blob/master/docker/ubuntu-small/Dockerfile#L231

I want to be able to run that image and then do my own builds with cmake -
but the layer COPY process doesn't include cmake or the other prereqs used
above (to save space in the image).

Is it easy to include the build capability as a layer-copy step?

Or is this perhaps a bad idea, I'm looking for the easiest way to get a
build system running with docker - I can unpick the builder/COPY process,
but maybe I'm missing something easy.

Thank you

-- 
Michael Sumner
Software and Database Engineer
Australian Antarctic Division
Hobart, Australia
e-mail: mdsumner at gmail.com
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