I'm trying to deploy a simple flask app to Google's Kubernetes Engine Cluster. I have created a deployment, service and ingress controller on the cluster.

Notice: I have taken a look at various other questions here like Google Cloud Kubernetes Nginx Ingress hang on "Creating ingress" it's specific to Nginx, so don't mark this as duplicate, please!

AND Here's the Service & Deployment YAML:

apiVersion: v1
kind: Service
metadata:
  name: myapp
  labels:
    app: myapp
spec:
  ports:
  - port: 9080
    name: http
  selector:
    app: myapp
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: myapp-v1
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: myapp
        version: v1
    spec:
      containers:
      - name: myapp
        image: arycloud/flask-svc:latest
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9080

and

Here's the Ingress YAML:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: svc-ingress
spec:
  backend:
    serviceName: myapp
    servicePort: 9080

It creates the myapp service and deployment in Kubernetes cluster on GKE but the Ingress controller hangs on Creating ingress. Here's the screenshot:

What's going to wrong here?