feat: add vanilla Kubernetes support#51
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The checkup currently assumes OpenShift (cluster-reader ClusterRole, ClusterVersion API, CNV-managed golden images). This breaks on vanilla Kubernetes with five distinct blockers. Changes: - Make checkVersions() tolerate missing OpenShift ClusterVersion API instead of treating it as fatal - Add storage_checkup_cluster_role.yaml manifest defining the read-only ClusterRole that OpenShift provides as cluster-reader - Add golden_image_dataimportcron.yaml manifest for clusters without CNV-managed DataImportCrons - Add docs/vanilla-k8s-guide.md covering RBAC, KubeVirt feature gates, masquerade networking, golden images, and timeout tuning - Add vanilla K8s section to README linking to the guide Signed-off-by: Suvro Ghosh <sughosh@redhat.com>
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The checkup currently assumes OpenShift (cluster-reader ClusterRole, ClusterVersion API, CNV-managed golden images). This breaks on vanilla Kubernetes with five distinct blockers.
Changes:
Fixes: #50