apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
  name: extract-device-id
  namespace: default
spec:
  headers:
    customRequestHeaders:
      X-Device-Id: "{regexExtract:Authorization,MediaBrowser Client=\"[^\"]+\", Device=\"[^\"]+\", DeviceId=\"([^\"]+)\"}"

---
apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
  name: set-device-cookie
  namespace: default
spec:
  headers:
    customResponseHeaders:
      Set-Cookie: "jellyfin-session={req.X-Device-Id}; Path=/; Max-Age=86400; HttpOnly; Secure"