k3s-cluster/cluster/core/networking/traefik/dashboard-ingress.yaml

apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: traefik-dashboard-ingress
  namespace: traefik
  annotations:
    cert-manager.io/cluster-issuer: "letsencrypt-production"
spec:
  entryPoints:
    - websecure
    - traefik
  routes:
  - kind: Rule
    match: Host(`k3st.***REMOVED***`) && (PathPrefix(`/dashboard/`) || PathPrefix(`/api/`))
    priority: 10
    services:
    - kind: Service
      name: traefik
      namespace: traefik
      passHostHeader: true
      port: 9000
      weight: 10

#apiVersion: networking.k8s.io/v1
#kind: Ingress
#metadata:
#  name: traefik-dashboard-ingress
#  namespace: traefik
#  annotations:
#    cert-manager.io/cluster-issuer: "letsencrypt-production"
#    traefik.ingress.kubernetes.io/router.entrypoints: websecure
#spec:
#  rules:
#    - host: "k3st.***REMOVED***"
#      http:
#        paths:
#          - path: /dashboard
#            pathType: Prefix
#            backend:
#              service:
#                name: traefik
#                port:
#                  number: 9000