Kubernetes Online Test

A Kubernetes cluster runs a client-app Deployment exposed externally by a LoadBalancer Service app-service at https://app.example.com/. A new backend Deployment with internal Service backend-service is added.

The expected routing based on selectors:

• / - client-app
• /api - backend

The platform team enforces a single public load balancer/IP per environment.

Services currently defined:

apiVersion: v1
kind: Service
metadata:
  name: app-service
spec:
  type: LoadBalancer
  ports:
  - name: https
    port: 443
    targetPort: 8443
  selector:
    app: client-app

apiVersion: v1
kind: Service
metadata:
  name: backend-service
spec:
  type: ClusterIP
  ports:
  - name: http
    port: 80
    targetPort: 8080
  selector:
    app: backend

Answer the following:

• Can app-service be updated to expose both apps?
• What is the solution to route traffic correctly?

(An answer up to 30 words is sufficient)

Consider the following Ingress resource:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: main-ingress
spec:
  rules:
  - http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: main-app
            port:
              number: 80
      - path: /files/
        pathType: Prefix
        backend:
          service:
            name: file-app
            port:
              number: 80
      - path: /files/default.png
        pathType: Exact
        backend:
          service:
            name: default-app
            port:
              number: 8080

Select all the true statements.

The team responsible for Kubernetes wants to add a Deployment that will deploy 4 nginx Pods over port 80. Finish the following YAML configuration so that it implements those requirements:

apiVersion: apps/v1
kind: ________________
metadata:
  name: deployment-nginx
  labels:
    web: public
spec:
  replicas: __________
  selector:
    matchLabels:
      web: public
  template:
    metadata:
      labels:
        _______: __________
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80