update dashboards and claude instructions

Author: frisitano

claude/grafana-dashboard-sync-instructions.md

@@ -48,6 +48,7 @@ python3 claude/tools/sync_dashboard.py
 This script will:
 - Use upstream dashboards as the base structure
 - Add K8s variables (env, service) to all dashboards - NO pod variable
+- Preserve dashboard-specific variables (e.g., interval) alongside K8s variables
 - Transform all PromQL queries to use service-only label selectors
 - Hardcode datasource UID `o59qe-zVz` in all panels
 - Preserve Scroll UIDs
@@ -167,6 +168,7 @@ All Scroll dashboards must include these variables (2 only - NO pod variable):
 **Important:**
 - No `pod` variable - queries aggregate by service only, enabling data continuity when pods are replaced
 - No `datasource` variable - datasource UID is hardcoded in all panels
+- **Dashboard-specific variables are preserved:** Some dashboards have additional variables (e.g., `interval` in reth-state-growth.json) that must be preserved alongside the K8s variables
 
 ### Hardcoded Datasource
 

claude/tools/sync_dashboard.py

@@ -53,9 +53,12 @@ def add_k8s_variables(dashboard: Dict, preserve_uid: str = None) -> Dict:
     if 'templating' not in dashboard:
         dashboard['templating'] = {'list': []}
 
-    # Replace ALL variables with ONLY K8s variables (env, pod, service)
-    # This ensures we only have the 3 required K8s variables
-    dashboard['templating']['list'] = k8s_vars
+    # Preserve dashboard-specific variables (like interval for reth-state-growth)
+    existing_vars = dashboard.get('templating', {}).get('list', [])
+    preserved_vars = [v for v in existing_vars if v.get('name') in ['interval']]
+
+    # Replace with K8s variables + preserved dashboard-specific variables
+    dashboard['templating']['list'] = k8s_vars + preserved_vars
 
     # Preserve scroll UID if provided
     if preserve_uid:

etc/grafana/scroll/reth-state-growth.json

@@ -1685,6 +1685,74 @@
         "refresh": 1,
         "regex": "(l[1|2]reth.*)",
         "type": "query"
+      },
+      {
+        "current": {
+          "selected": true,
+          "text": "10m",
+          "value": "10m"
+        },
+        "hide": 0,
+        "includeAll": false,
+        "label": "Interval",
+        "multi": false,
+        "name": "interval",
+        "options": [
+          {
+            "selected": false,
+            "text": "5m",
+            "value": "5m"
+          },
+          {
+            "selected": true,
+            "text": "10m",
+            "value": "10m"
+          },
+          {
+            "selected": false,
+            "text": "30m",
+            "value": "30m"
+          },
+          {
+            "selected": false,
+            "text": "1h",
+            "value": "1h"
+          },
+          {
+            "selected": false,
+            "text": "6h",
+            "value": "6h"
+          },
+          {
+            "selected": false,
+            "text": "12h",
+            "value": "12h"
+          },
+          {
+            "selected": false,
+            "text": "1d",
+            "value": "1d"
+          },
+          {
+            "selected": false,
+            "text": "7d",
+            "value": "7d"
+          },
+          {
+            "selected": false,
+            "text": "14d",
+            "value": "14d"
+          },
+          {
+            "selected": false,
+            "text": "30d",
+            "value": "30d"
+          }
+        ],
+        "query": "5m,10m,30m,1h,6h,12h,1d,7d,14d,30d",
+        "queryValue": "",
+        "skipUrlSync": false,
+        "type": "custom"
       }
     ]
   },