feat: implement declarative dashboard downloading by ID

grafana.yaml

@@ -34,6 +34,14 @@ data:
         editable: true
         options:
           path: /var/lib/grafana/dashboards
+      - name: 'Auto-Downloaded'
+        orgId: 1
+        folder: 'Kubernetes'
+        type: file
+        disableDeletion: false
+        editable: true
+        options:
+          path: /etc/grafana/dashboards
 ---
 apiVersion: v1
 kind: ConfigMap
@@ -305,6 +313,22 @@ spec:
     spec:
       securityContext:
         fsGroup: 472
+      initContainers:
+        - name: download-dashboards
+          image: curlimages/curl:latest
+          command: ["sh", "-c"]
+          args:
+            - |
+              set -e
+              mkdir -p /tmp/dashboards
+              # List of dashboard IDs to download
+              for id in 15757 15759 15760; do
+                echo "Downloading dashboard $id..."
+                curl -sL "https://grafana.com/api/dashboards/${id}/revisions/latest/download" -o "/tmp/dashboards/${id}.json"
+              done
+          volumeMounts:
+            - name: auto-dashboards
+              mountPath: /tmp/dashboards
       containers:
         - name: grafana
           image: grafana/grafana:latest
@@ -383,6 +407,9 @@ spec:
             - name: grafana-dashboards
               mountPath: /var/lib/grafana/dashboards
               readOnly: true
+            - name: auto-dashboards
+              mountPath: /etc/grafana/dashboards
+              readOnly: true
           readinessProbe:
             httpGet:
               path: /api/health
@@ -402,6 +429,8 @@ spec:
         - name: grafana-dashboards
           configMap:
             name: grafana-dashboards
+        - name: auto-dashboards
+          emptyDir: {}
   volumeClaimTemplates:
     - metadata:
         name: grafana-storage