Path other the "/" are not working in my configuration

Traefik Traefik v2 (latest)
1

I am trying a Basic Local Configuration using still a Kubernates Ingress leveraging on Traefik 2.2.

I am deploying on my local cluster environment using K8S on DockerForMac with Kind as Cluster Provider.
Well, I am aware that this is a pretty cumbersome configuration and all the issues related to MacOS with ports missing docker bridge. But apparently everything works correctly, even exposing Dashboard works.

What is strange is that.
When I use this kind of configuration:

      - path: /play
        backend:
          serviceName: kind-play-svc
          servicePort: 3000

If I access from browser:
http://localhost:<tricky_port_on_host>/play I receive a Cannot GET

But if i change path to:

      - path: /
        backend:
          serviceName: kind-play-svc
          servicePort: 3000

And I apply that change. Everything is working smootly, and I can access my service at:
http://localhost:<tricky_port_on_host>/
or either service subroutes works, as
http://localhost:<tricky_port_on_host>/firebase

The service is a simple ExpressJs Router of few Backend Api route paths.
I will post my configuration... Apparently the configuration is working, probably I am misunderstanding something?

Thank you for driving me toward the right path! :smiley:

---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: traefik-ingress-controller
rules:
  - apiGroups:
      - ""
    resources:
      - services
      - endpoints
      - secrets
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - extensions
      - networking.k8s.io
    resources:
      - ingresses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - extensions
      - networking.k8s.io
    resources:
      - ingresses/status
    verbs:
      - update
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: traefik-ingress-controller
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: traefik-ingress-controller
subjects:
  - kind: ServiceAccount
    name: traefik-ingress-controller
    namespace: default
---
kind: ServiceAccount
apiVersion: v1
metadata:
  name: traefik-ingress-controller
---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: traefik
  labels:
    app: traefik
spec:
  replicas: 1
  selector:
    matchLabels:
      app: traefik
  template:
    metadata:
      labels:
        app: traefik
    spec:
      serviceAccountName: traefik-ingress-controller
      containers:
      - name: traefik
        image: traefik:v2.2
        args:
          - --log.level=DEBUG
          - --api
          - --api.insecure
          - --entrypoints.web.address=:80
          - "--providers.kubernetesingress=true"
        ports:
          - name: web
            containerPort: 80
          - name: admin
            containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: traefik
spec:
  selector:
    app: traefik
  ports:
  - name: web
    protocol: TCP
    port: 80
    targetPort: 80
    nodePort: 30081
  - name: admin
    protocol: TCP
    port: 8080
    targetPort: 8080
    nodePort: 31808
  type: NodePort
---
#Ingress
kind: Ingress
apiVersion: networking.k8s.io/v1beta1
metadata:
  name: traefik-basic
  annotations:
    traefik.ingress.kubernetes.io/router.entrypoints: web
spec:
  rules:
  # - host: example.com
  - http:
      paths:
      - path: /play
        backend:
          serviceName: kind-play-svc
          servicePort: 3000