Generic version of debug-tools for executables

[jayunit100]

Is your feature request related to a problem? Please describe.

feature - for windows, we need executables for CSI, CNI, and so on that are hollow , i.e. not really aware of cni or csi, but just, copying executables installed to image

Describe the solution you'd like

• Add an ansible step "cni-executables-install/" OR
• Add an ansible step "additional-file-copy/"

Describe alternatives you've considered

• Make a container and unzip it at runtime
• post kubeadm wget actions yuck !

Additional context

@perithompson and me want to ship Antrea in windows images !

/kind feature

[perithompson]

/sig windows

[jsturtevant]

A little background... Since windows doesn't have privileged containers it can't easily install and run services from pods like Linux does. sig-windows came up with some work arounds using hostnetwork for Windows and Docker but it doesn't work as well with Containerd: kubernetes-sigs/sig-windows-tools#128 (comment)

For now with Containerd, in the current state of things it is necessary for containerd builds to have the CNI running on the node. This will be temporary once privileged containers lands and matures (which would make it closer to the way Linux install and run CNI's)

If this could be designed to be generic to install not just Antrea that would be beneficial for capz as well.

[perithompson]

Completely agree with this, we were thinking as a generic way to do this, we could just start with a way to download a variable list of executables into a folder for CSI/CNI etc and let cluster API do the actual installation step? Any thoughts? I think maintaining an installation routine for each cni would be to hard to maintain...

[jsturtevant]

Agreed, Linux does something similar for the base line cnis:

image-builder/images/capi/ansible/roles/kubernetes/tasks/url.yml

Line 36 in 0b97b19

- name: Download CNI tarball

The tricky part might be setting up the configuraiton between containerd/CNI/kubelet.

[jayunit100]

im ok w ANY solution here, generic or CNI specific , but feel like generic gives max flexibility to vendors w/o making upstream opinionated

[perithompson]

/assign