configmap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-conf
data:
  nginx.conf: |

    server {
      listen 80;
      index index.php index.html;
      root /usr/share/nginx/html;

      rewrite ^/google$ http://google.com permanent;
    }

deployment.yaml

apiVersion: apps/v1beta1
kind: Deployment
metadata: 
  name: hello-nginx
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: hello-nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.17-alpine
        ports:
        - containerPort: 80

        resources:
          requests:
            memory: "100Mi"
            cpu: "200m"
          limits:
            cpu: "250m"
            memory: "200Mi"

        volumeMounts:
        - mountPath: /etc/nginx/conf.d
          name: nginx-conf
          readOnly: true
          

      volumes:
      - name: nginx-conf
        configMap:
          name: nginx-conf
          items:
            - key: nginx.conf
              path: nginx.conf

service.yaml

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  type: LoadBalancer
  ports:
  - port: 80
  selector:
    app: hello-nginx