Long schedule times with non-Cirrus windows containers.

[xddxd]

Whenever I use my own windowsservercore container that has the latest visual studio build tools and python baked in, scheduling a task on Cirrus takes about 5-10 minutes, when I use Cirrus's windowsservercore:cmake container (which has visual studio 16.8, unfortunately not optimal for me), it gets scheduled within a minute. Why does this happen?

[fkorotkov]

Could you please provide an image that you use?

The reason of long scheduling is that Windows images are usually very large and it takes time to download layers and unarchive them. We do cache some of the popular images (like the one you mentioned) which makes the process faster.

[xddxd]

Here you go.
Link

[fkorotkov]

@xddxd I'm considering changing our image in cirruslabs/docker-images-windows#22. Seems then you can base your image of ours and just install python. Will that work for you?

[xddxd]

Absolutely, thank you very much.