Replace imagebuilder with docker/podman for building images, enabling
e2e tests to run on macOS. This change supports both Docker Desktop
and Podman on macOS (including Apple Silicon) and Linux.
Key changes:
- Add test/kind-images.mk for auto-detecting runtime and architecture
- Update test-e2e target to build and load images automatically
- Add SKIP_IMAGE_BUILD flag to skip image building when only tests change
- Add clean-e2e-env target for proper test environment cleanup
- Simplify GitHub Actions workflows (remove imagebuilder steps)
- Set default KUBECONFIG to ~/.kube/config
- Add comprehensive e2e testing documentation
The build system now automatically:
- Detects docker or podman
- Detects kind cluster architecture (amd64/arm64)
- Builds images with correct platform flag
- Handles different image loading methods for docker vs podman
Tested successfully on macOS with podman and Apple Silicon (79/83 tests passed).
Signed-off-by: Jian Qiu <jqiu@redhat.com>
