k8s ingress

# kubectl create -f https://raw.githubusercontent.com/kubernetes/contrib/master/ingress/controllers/nginx/examples/default-backend.yaml
# kubectl expose rc default-http-backend --port=80 --target-port=8080 --name=default-http-backend

Create a file nginx-ingress-controller.yml with following content
=======File Start================
apiVersion: v1
kind: Service
metadata:
  name: nginx-ingress
spec:
  type: nodePort
  ports:
    - port: 80
      name: http
    - port: 443
      name: https
  selector:
    k8s-app: nginx-ingress-lb
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-ingress-controller
spec:
  replicas: 2
  revisionHistoryLimit: 3
  template:
    metadata:
      labels:
        k8s-app: nginx-ingress-lb
    spec:
      terminationGracePeriodSeconds: 60
      containers:
        - name: nginx-ingress-controller
          image: gcr.io/google_containers/nginx-ingress-controller:0.8.3
          imagePullPolicy: Always
          readinessProbe:
            httpGet:
              path: /healthz
              port: 18080
              scheme: HTTP
          livenessProbe:
            httpGet:
              path: /healthz
              port: 18080
              scheme: HTTP
            initialDelaySeconds: 10
            timeoutSeconds: 5
          args:
            - /nginx-ingress-controller
            - --default-backend-service=$(POD_NAMESPACE)/default-http-backend
            - --default-ssl-certificate=$(POD_NAMESPACE)/tls-certificate
          # Use downward API
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
          ports:
            - containerPort: 80
            - containerPort: 443
          volumeMounts:
            - name: tls-dhparam-vol
              mountPath: /etc/nginx-ssl/dhparam
            - name: nginx-template-volume
              mountPath: /etc/nginx/template
              readOnly: true
      volumes:
        - name: tls-dhparam-vol
          secret:
            secretName: tls-dhparam
        - name: nginx-template-volume
          configMap:
            name: nginx-template
            items:
            - key: nginx.tmpl
              path: nginx.tmpl
=======File End==================


# kubectl create -f ./nginx-ingress-controller.yml
# kubectl get services -o wide | grep nginx

Create a ingress file (# ingress.yaml)
=============file start==================
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-nginx
  namespace: default
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:
  - host: "webserver.localhost"
    http:
      paths:
      - path: /sample
        backend:
          serviceName: tomcat service name
          servicePort: 8080  
  - host: "webhook.localhost"
    http:
      paths:
      - path: /
        backend:
          serviceName: nginx service name
          servicePort: 80 
=============file end====================

Also add the domain entry to # /etc/hosts file.
ex:
IP Domain name
x.x.x.x  webhook.localhost
x.x.x.x  webserver.localhost

then run the ingress.yaml file.

 and check the output in # kubectl get ing -n namespace
 
 now you should curl the domains.