# vLLM metrics proxy — similar to ollama-metrics
# Proxies requests and exposes Prometheus metrics
apiVersion: apps/v1
kind: Deployment
metadata:
  name: vllm-metrics
  namespace: vllm-service
spec:
  replicas: 1
  selector:
    matchLabels:
      app: vllm-metrics
  template:
    metadata:
      labels:
        app: vllm-metrics
    spec:
      containers:
        - name: proxy
          image: nginx:alpine
          ports:
            - containerPort: 8080
          volumeMounts:
            - name: nginx-conf
              mountPath: /etc/nginx/conf.d/default.conf
              subPath: default.conf
      volumes:
        - name: nginx-conf
          configMap:
            name: vllm-proxy-config
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: vllm-proxy-config
  namespace: vllm-service
data:
  default.conf: |
    upstream vllm_backend {
        server nuextract.vllm-service.svc.cluster.local:8000;
    }

    server {
        listen 8080;

        # API proxy
        location / {
            proxy_pass http://vllm_backend;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_connect_timeout 300s;
            proxy_read_timeout 300s;
            proxy_send_timeout 300s;
        }

        # vLLM exposes /metrics natively
        location /metrics {
            proxy_pass http://vllm_backend/metrics;
        }
    }
---
apiVersion: v1
kind: Service
metadata:
  name: vllm-metrics
  namespace: vllm-service
spec:
  ports:
    - name: proxy
      port: 8080
      targetPort: 8080
  selector:
    app: vllm-metrics
  type: ClusterIP