samples: a kvm2 crawl pool, not just the single-proxy sample

proxy_kvm2.yaml shows one VM; nothing showed the shape a crawler actually
leases from. Add a five-Proxy pool on the kvm2-home entry: four share one
labelled cloud-init Secret, and the fifth carries its own inline block
because it runs squid on 8080 and spec.port has to match the http_port a
shared Secret would pin.

It stays out of the samples kustomization so `apply -k config/samples`
doesn't boot a pool along with the one-per-provider samples. All six
objects validate against the installed CRD under --dry-run=server.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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2026-09-18 07:45:16 +00:00
co-authored by Claude Opus 5
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# Changelog
## 2026-09-18 07:44 UTC — a kvm2 crawl-pool sample
Until now the only kvm2 manifest was the one-VM `config/samples/proxy_kvm2.yaml`, which
left the multi-proxy shape — the one a crawler actually leases from — undocumented.
- Added `config/samples/proxy_kvm2_crawl_pool.yaml`: five Managed Proxies on the `kvm2-home`
entry, four sharing one labelled cloud-init Secret and one inline (it runs squid on 8080,
so it cannot share a Secret that pins `http_port 3128`). Covers the `tier` attribute the
discovery API selects on, a `medium`/`ubuntu-24.04` member with a raised `maxLeases`, and
a member with a tightened `healthCheck`.
- Kept out of `config/samples/kustomization.yaml` on purpose so `apply -k` doesn't boot a
whole pool; the exclusion is commented there next to the existing `providers-config.yaml`
one. Validated with `kubectl apply --dry-run=server`.
## 2026-09-17 20:36 UTC — kvm2: the four high findings from the code review, and its first run on a real hypervisor
A scoped review of the kvm2 provider (`review/REPORT.md`: 52 findings, 4 high, 20 medium,