[Epic] Testing Overhaul 2025

[dereknola]

This is an epic to track all the changes for testing in 2025. Since most testing is self tested in the CI, QA for most of this is not necessary. This issue largely exists as an organizational and historical record.

Docker Tests

• Migrate amd64 docker tests from bash to golang (and run in GHA)
• Migrate arm64 docker tests from bash to golang (and run in Drone)
• Investigate replacement of Sonobuoy conformance with Hydrophone
• Investigate use of rancher/systemd-node as option to allow restarts of k3s

E2E Tests

• Utilize GHA self-hosted large runners to improve performance of k3s build job.
• After docker migrations, determine which e2e tests should be "downgraded" to docker tests
• Precompile go tests for increase performance
• Upload systemctl node logs as artifacts in GHA on failure

Integration Tests

Unit Tests

• Overhaul old loadbalancer unit test