feat(ollama): add internal Ollama service with gemma3:270m in nxtgauge-ai namespace

- Add namespace, PVC, deployment, service, and kustomization for Ollama
- ClusterIP only (internal), no ingress
- 10Gi PVC mounted at /root/.ollama
- Resource limits: 700Mi-1500Mi memory, 500m-1000m CPU
- Add ArgoCD Application CR for ollama
- Update backend configmap with OLLAMA_BASE_URL and OLLAMA_CHAT_MODEL

apps/nxtgauge-backend-rust/base/configmap.yaml

@@ -25,3 +25,5 @@ data:
   CATERING_SERVICES_SERVICE_URL: "http://nxtgauge-rust-catering-services:9115"
   PAYMENTS_SERVICE_URL: "http://nxtgauge-rust-payments:9116"
   UGC_CONTENT_CREATORS_SERVICE_URL: "http://nxtgauge-rust-ugc-content-creators:9117"
+  OLLAMA_BASE_URL: "http://ollama.nxtgauge-ai.svc.cluster.local:11434"
+  OLLAMA_CHAT_MODEL: "gemma3:270m"

apps/ollama/base/deployment.yaml

@@ -0,0 +1,40 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ollama
+  namespace: nxtgauge-ai
+  labels:
+    app: ollama
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: ollama
+  template:
+    metadata:
+      labels:
+        app: ollama
+    spec:
+      containers:
+        - name: ollama
+          image: ollama/ollama:latest
+          ports:
+            - containerPort: 11434
+              name: http
+          env:
+            - name: OLLAMA_HOST
+              value: "0.0.0.0:11434"
+          volumeMounts:
+            - name: ollama-models
+              mountPath: /root/.ollama
+          resources:
+            requests:
+              cpu: 500m
+              memory: 700Mi
+            limits:
+              cpu: 1000m
+              memory: 1500Mi
+      volumes:
+        - name: ollama-models
+          persistentVolumeClaim:
+            claimName: ollama-models

apps/ollama/base/kustomization.yaml

@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - namespace.yaml
+  - pvc.yaml
+  - deployment.yaml
+  - service.yaml

apps/ollama/base/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: nxtgauge-ai

apps/ollama/base/pvc.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: ollama-models
+  namespace: nxtgauge-ai
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 10Gi

apps/ollama/base/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: ollama
+  namespace: nxtgauge-ai
+  labels:
+    app: ollama
+spec:
+  type: ClusterIP
+  ports:
+    - port: 11434
+      targetPort: 11434
+      name: http
+  selector:
+    app: ollama

argocd/ollama-application.yaml

@@ -0,0 +1,20 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: ollama
+  namespace: argocd
+spec:
+  destination:
+    namespace: nxtgauge-ai
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    path: apps/ollama/base
+    repoURL: https://github.com/Traceworks2023/nxtgauge-gitops.git
+    targetRevision: main
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true