Overdue: this belongs with toolshed's custom-domains feature, which has
already merged and shipped. Without it, deployer gets "forbidden" the
moment anyone actually adds a custom domain — the exact failure mode
internal/deploy/kubernetes.go's own package doc warns about, since its
resource list and this file are unsynchronised copies in two repositories.
Scoped as a namespaced Role/RoleBinding rather than widening the
ClusterRole above it. A custom domain's Ingress and TLS secret live in the
gateway's own namespace and never in an app's, so this only ever targets
one fixed namespace — unlike the per-app namespaces the ClusterRole
necessarily spans. Secrets are get/list/watch/delete only: cert-manager
writes them, deployer just reads readiness and cleans up on removal.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wajog7nELA3i8JWTjxYGHF
