feat(chart): support Service trafficDistribution - #6930
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Add `service.trafficDistribution` and `pairingRelay.service.trafficDistribution` so operators can enable topology-aware routing on the relay and pairing relay Services. Empty (the default) omits `spec.trafficDistribution` entirely, so rendered manifests are unchanged for existing installs. The schema restricts values to the ones the API server accepts (`PreferClose`, `PreferSameZone`, `PreferSameNode`), catching typos at install time rather than at apply time. Release chart 0.1.9. Signed-off-by: younsl <cysl@kakao.com>
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Summary
Adds optional Service spec.trafficDistribution to the relay and pairing relay Services so operators can enable topology-aware routing and cut cross-zone traffic.
New values, both empty by default:
Empty omits the field, so rendered manifests are unchanged for existing installs. The schema restricts values to PreferClose, PreferSameZone, and PreferSameNode, so a typo fails at install time instead of at apply time. Releases chart 0.1.9.
Related issue
None found.
Testing
helm unittest: 47 passed, including 3 new cases covering the default omission, PreferClose on the relay Service, and PreferSameZone on the pairing relay Service. The 3 pre-existing failures on this branch also fail on main and come from a local plugin version difference (1.0.3 vs the 0.8.2 pinned in CI).
Schema enum accept and reject verified directly against values.schema.json. helm template and ct lint were not run locally because the OCI subchart dependencies could not be fetched; CI covers both.
No UI change.