fix: adapt weka_runtime to use a custom builder image

[rugggger]

Implements a drivers-builder mode that can load a custom builder image and can build Weka drivers for specific versions on demand.

What changed?

• Added a new drivers-builder mode to weka_runtime.py that:
  • Downloads and builds Weka drivers for a specified version
  • Creates necessary symlinks for serving drivers
  • Starts an HTTP server to serve the built drivers
  • Writes build results for the operator to consume
• Added BUILDER_WEKA_VERSION environment variable to pass the target Weka version
• Updated the pod factory to pass the builder version to containers
• Increased ephemeral storage allocation to 8Gi for driver builder pods
• Updated the weka-k8s-api submodule reference

[rugggger]

• fix: adapt weka_runtime to use a custom builder image #2059 👈 (View in Graphite)
• main

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Graphite Automations

"Add anton/matt/sergey/kristina as reviwers on operator PRs" took an action on this PR • (01/14/26)

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