nginx.yaml

# full-setup.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
data:
  nginx.conf: |
    events {}

    http {
      server {
        listen 80;

        location / {
          proxy_pass http://frontend.demoapp.svc.cluster.local;  # Added http:// protocol prefix
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header X-Forwarded-Proto $scheme;
          proxy_http_version 1.1;
        }
      }
    }
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-ingress
spec:
  selector:
    app: nginx-ingress
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: ClusterIP # Expose the service using a LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-ingress
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx-ingress
  template:
    metadata:
      labels:
        app: nginx-ingress
    spec:
      containers:
        - name: nginx
          image: nginx:1.25.4
          ports:
            - containerPort: 80
          volumeMounts:
            - name: nginx-config
              mountPath: /etc/nginx/nginx.conf
              subPath: nginx.conf
              readOnly: true
      volumes:
        - name: nginx-config
          configMap:
            name: nginx-config