TLSRoute, GRPCRoute, TCPRoute, UDPRoute CRDs are not installed
(Traefik experimentalChannel: false), causing external-dns to crash
with a context deadline timeout on every sync cycle.
Keep only gateway-httproute which is the only route type in use.
- Add externaldns base ArgoCD application with namespace and Vault integration
- Create externaldns overlay for au-syd1 with Helm chart configuration
- Update platform ApplicationSet to include externaldns deployment
- Configure external-dns v1.19.0 with RFC2136 provider for DNS updates
- Maintain one-to-one migration from Terraform configuration including TSIG secrets
Reviewed-on: #43