fix: use builder images in local builder pods

[rugggger]

Add drivers-builder mode for local driver distribution

TL;DR

Implements a drivers-builder mode that builds and serves Weka drivers for specific kernel versions from a custom builder image (not weka-in-container as before), improving the driver distribution process.

What changed?

• determine the builder image by the labels (osImage)
• copy weka cli + weka version into the builder pod by the use of init-containers
• updated weka_runtime process to build and serve the drivers

Why make this change?

This change improves the driver distribution process by allowing the operator to build drivers specifically for the target node's kernel and OS. By using specialized builder images for different OS versions (like Ubuntu 22.04 and 24.04), it ensures better compatibility and reliability when loading drivers on various node configurations.

[rugggger]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• fix: build locally and load build-id drivers #2102 : 2 dependent PRs (#2103 , #2114 )
• fix: use builder images in local builder pods #2099 👈 (View in Graphite)
• fix: add os label to builder WekaContainer name #2093
• fix: add DefaultCliContainer #2092
• main

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[graphite-app]

Graphite Automations

"Add anton/matt/sergey/kristina as reviwers on operator PRs" took an action on this PR • (01/21/26)

3 reviewers were added to this PR based on Anton Bykov's automation.