k3d ingress demo

demo1.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo1
  namespace: default
spec:
  replicas: 2
  selector:
    matchLabels:
      app: demo1
  template:
    metadata:
      labels:
        app: demo1
    spec:
      containers:
      - name: demo1
        image: gcr.io/google_containers/echoserver:1.8
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: demo1
  namespace: default
spec:
  ports:
  - name: http
    targetPort: 8080
    port: 80
  selector:
    app: demo1
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: demo1
  annotations:
    kubernetes.io/ingress.class: "traefik"

spec:
  rules:
  - host: demo1.example.org
    http:
      paths:
      - path: /
        backend:
          serviceName: demo1
          servicePort: http

demo2.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo2
  namespace: default
spec:
  replicas: 2
  selector:
    matchLabels:
      app: demo2
  template:
    metadata:
      labels:
        app: demo2
    spec:
      containers:
      - name: demo2
        image: gcr.io/google_containers/echoserver:1.8
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: demo2
  namespace: default
spec:
  ports:
  - name: http
    targetPort: 8080
    port: 80
  selector:
    app: demo2
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: demo2
  annotations:
    kubernetes.io/ingress.class: "traefik"

spec:
  rules:
  - host: demo2.example.org
    http:
      paths:
      - path: /
        backend:
          serviceName: demo2
          servicePort: http

demo3.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo3
  namespace: default
spec:
  replicas: 2
  selector:
    matchLabels:
      app: demo3
  template:
    metadata:
      labels:
        app: demo3
    spec:
      containers:
      - name: demo1
        image: gcr.io/google_containers/echoserver:1.8
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: demo3
  namespace: default
spec:
  ports:
  - name: http
    targetPort: 8080
    port: 80
  selector:
    app: demo3
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: demo3
  annotations:
    kubernetes.io/ingress.class: "traefik"

spec:
  rules:
  - host: demo1.example.org
    http:
      paths:
      - path: /demo3
        backend:
          serviceName: demo3
          servicePort: http

k3d-setup.sh

k3d create --workers="2" --publish="8080:80"
export KUBECONFIG="$(k3d get-kubeconfig --name='k3s-default')"

curl -H "Host: demo1.example.org" http://localhost:8080/
curl -H "Host: demo2.example.org" http://localhost:8080/
curl -H "Host: demo1.example.org" http://localhost:8080/demo3