nginx_deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx
  labels:
    tier: backend
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx
      tier: backend
  template:
    metadata:
      labels:
        app: nginx
        tier: backend
    spec:      
      containers:
      - name: nginx
        image: nginx:1.23
        ports:
        - containerPort: 80
        volumeMounts:
        - name: local-pv-storage
          mountPath: "/usr/share/nginx/html"
        - name: config
          mountPath: /etc/nginx/conf.d
        resources: # You need to specify the metric the HPA object will reference
          requests:
            memory: "64Mi"
            cpu: "125m"
          limits:
            memory: "128Mi"
            cpu: "250m"
      volumes:
      - name: local-pv-storage
        persistentVolumeClaim:
          claimName: local-pv-claim
      - name: config
        configMap:
          name: nginx-config
          items:
          - key: config
            path: site.conf