Add ConfigMap-driven Ollama model-pull Job

README.md

@@ -73,6 +73,30 @@ kubectl apply -f application.yaml
 argocd app sync chatbot-gitops
 ```
 
+
+## Pre-pull Ollama models with a Job
+
+The dev overlay includes:
+
+- `ConfigMap/ollama-models` with a `models.txt` list of models to pull.
+- `Job/ollama-model-pull` that reads `models.txt` and runs `ollama pull` for each entry.
+
+Update the model list by editing `overlays/dev-ollama/ollama-models-configmap.yaml` and changing `data.models.txt`.
+
+Trigger the model-pull Job:
+
+```bash
+kubectl delete job ollama-model-pull -n chatbot --ignore-not-found
+kubectl apply -k overlays/dev-ollama
+kubectl logs job/ollama-model-pull -n chatbot -f
+```
+
+Check completion:
+
+```bash
+kubectl get job ollama-model-pull -n chatbot
+```
+
 ## Validate
 
 ```bash

overlays/dev-ollama/kustomization.yaml

@@ -3,6 +3,8 @@ kind: Kustomization
 
 resources:
   - ollama.yaml
+  - ollama-models-configmap.yaml
+  - ollama-model-pull-job.yaml
   - openwebui-pvc.yaml
   - openwebui-deploy.yaml
   - openwebui-svc.yaml

overlays/dev-ollama/ollama-model-pull-job.yaml

@@ -0,0 +1,43 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: ollama-model-pull
+  namespace: chatbot
+spec:
+  backoffLimit: 6
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+      - name: pull-models
+        image: ollama/ollama:latest
+        env:
+        - name: OLLAMA_HOST
+          value: "http://ollama:11434"
+        command:
+        - /bin/sh
+        - -c
+        - |
+          set -eu
+          echo "Waiting for Ollama API at ${OLLAMA_HOST}..."
+          until ollama list >/dev/null 2>&1; do
+            sleep 5
+          done
+
+          while IFS= read -r model; do
+            model="$(echo "$model" | xargs)"
+            [ -z "$model" ] && continue
+            case "$model" in
+              \#*) continue ;;
+            esac
+            echo "Pulling model: $model"
+            ollama pull "$model"
+          done < /models/models.txt
+        volumeMounts:
+        - name: models
+          mountPath: /models
+          readOnly: true
+      volumes:
+      - name: models
+        configMap:
+          name: ollama-models

overlays/dev-ollama/ollama-models-configmap.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ollama-models
+  namespace: chatbot
+data:
+  models.txt: |
+    tinyllama