Next.js standalone mode needs a writable /tmp directory for cache, temp files, and logs.
With , the container was crashing after "Ready in 228ms" (EOF in log stream).
Added the standard emptyDir volumeMount used by other services.
This should make the dashboard stable and accessible on tailnet.
Matches the exact annotation pattern used for other tailnet services (Grafana, trade-dashboard, hermes-webui, etc.).
This ensures the Tailscale operator correctly maps the exposed port after the 3000 change.
Gives ~5min grace period for heavy lifespan init (Redis, DB, executors, model loading).
Addresses 'up but not ready' state on data-service and dashboard (0/1 Ready).
Live manifests in apps/base/customer1/... updated (source of truth). Helm templates can be synced later.
See gke-hermes-infrastructure skill (trading-startup-probe-fix-2026-05-26.md).
