add PersistentVolumeClaim and Service for open-webui deployment

cluster/apps/open-webui/open-webui.yml

@@ -0,0 +1,31 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: open-webui
+  namespace: default
+spec:
+  selector:
+    matchLabels:
+      app: open-webui
+  template:
+    metadata:
+      labels:
+        app: open-webui
+    spec:
+      runtimeClassName: nvidia
+      containers:
+      - name: open-webui
+        image: ghcr.io/open-webui/open-webui:cuda
+        ports:
+        - containerPort: 8080
+        env:
+        - name: OLLAMA_BASE_URL
+          value: "ollama:3210"
+        volumeMounts:
+        - name: config
+          mountPath: /app/backend/data
+      volumes:
+      - name: config
+        persistentVolumeClaim:
+          claimName: longhorn-open-webui