harvester

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What it does

Harvester HCI operator suite — controlled, community-edition Harvester upgrades off an EOL line up to latest stable: the no-skip minor ladder (1.5→1.6→1.7→1.8 carrying embedded RKE2 / KubeVirt / Longhorn / SLE-Micro together), external-Rancher + Harvester UI-extension pairing and ordering, air-gapped version detection, controlling the node-by-node upgrade flow (serial interlock, the v1.7+ pause-map, and the PodDisruptionBudget + VMI-readinessProbe native gate for 1.5/1.6), keeping VM-hosted self-managed RKE2 control planes quorate via anti-affinity spread and live-migration-vs-clean-shutdown tradeoffs (busy-etcd non-convergence, auto-converge, dedicated migration network), per-hop breaking changes (wicked→NetworkManager, Intel NIC rename, DHCP churn), the enforced pre-flight health gates, and the no-downgrade backup/rollback reality. Companion to the k8s suite's k8s-components-checker (Harvester↔Rancher↔RKE2 pairing registry) and rancher-upgrade (the external Rancher's own chain).