utku-suggestion.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: web
  namespace: default
spec:
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      labels:
        app: web
    spec:
      containers:
      - image: gcr.io/my-image
        imagePullPolicy: Always
        name: web
        ports:
        - containerPort: 8080
          protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
  name: web
  namespace: default
spec:
  ports:
  - port: 8080
    protocol: TCP
    targetPort: 8080
  selector:
    app: web
  type: NodePort
---
apiVersion: networking.gke.io/v1beta1
kind: ManagedCertificate
metadata:
  name: example-certificate
spec:
  domains:
    - app.domain.xyz
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: my-ingress-app
  annotations:
    kubernetes.io/ingress.global-static-ip-name: example-ip-address
    networking.gke.io/managed-certificates: example-certificate
spec:
  rules:
  - host: app.domain.xyz
    http:
      paths:
      - backend:
          serviceName: web
          servicePort: 8080