feat: vLLM in K8s via Harbor mirror, pipelines point to internal svc

- vLLM image mirrored to registry.celestium.life/stonks-oracle/vllm-openai
- Deployment uses Harbor image (Docker Hub IPv6 unreachable from cluster)
- All 3 pipelines use vllm-external.vllm-service.svc.cluster.local:2701
- K8s manifests at infra/kube-vllm/ and synced to ~/sources/kube/vllm

infra/kube-vllm/vllm-metrics.yaml

@@ -0,0 +1,74 @@
+# 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 vllm.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