unkinben 4f5c3f7ea0 feat(litellm): migrate Ingress to Gateway API (#134)
## Summary

- Replace `Ingress` (nginx) with `Gateway` + `HTTPRoute` using `traefik-internal` GatewayClass
- TLS terminated at the Gateway listener; cert-manager provisions the certificate via `vault-issuer`
- external-dns annotations moved to the Gateway

## Test plan

- [ ] ArgoCD syncs the litellm app cleanly
- [ ] cert-manager issues the `litellm-tls` certificate
- [ ] external-dns creates the DNS record
- [ ] `https://litellm.k8s.syd1.au.unkin.net` is reachable

Reviewed-on: #134
2026-05-23 01:29:54 +10:00
2026-04-07 19:52:17 +10:00
2026-03-01 16:34:01 +11:00
2026-03-02 23:08:04 +11:00
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