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fix(node-metrics): repair dead dashboard — nonexistent 'host' label broke every panel #281

Merged
k.renner merged 1 commits from claude-bot/dash-node-metrics into master 2026-07-17 11:21:41 +00:00
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+30 -13
1 changed files with 30 additions and 13 deletions
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kubernetes/apps/monitoring/dashboards/node-metrics.json
+30 -13
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@@ -23,7 +23,7 @@
"id": 1,
"options": {"legend": {"calcs": ["mean", "max"], "displayMode": "list", "placement": "bottom", "showLegend": true}, "tooltip": {"mode": "multi", "sort": "desc"}},
"targets": [
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "100 - (avg by(cpu) (rate(node_cpu_seconds_total{mode=\"idle\",host=~\"$host\"}[5m])) * 100)", "legendFormat": "CPU {{cpu}}", "refId": "A"}
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "100 - (avg by(cpu) (rate(node_cpu_seconds_total{mode=\"idle\",instance=\"$instance\"}[5m])) * 100)", "legendFormat": "CPU {{cpu}}", "refId": "A"}
],
"title": "CPU Usage per Core",
"type": "timeseries"
@@ -44,9 +44,9 @@
"id": 2,
"options": {"legend": {"calcs": ["mean", "max"], "displayMode": "list", "placement": "bottom", "showLegend": true}, "tooltip": {"mode": "multi", "sort": "desc"}},
"targets": [
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "node_memory_MemTotal_bytes{host=~\"$host\"} - node_memory_MemAvailable_bytes{host=~\"$host\"}", "legendFormat": "Used", "refId": "A"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "node_memory_Cached_bytes{host=~\"$host\"}", "legendFormat": "Cached", "refId": "B"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "node_memory_Buffers_bytes{host=~\"$host\"}", "legendFormat": "Buffers", "refId": "C"}
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "node_memory_MemTotal_bytes{instance=\"$instance\"} - node_memory_MemAvailable_bytes{instance=\"$instance\"}", "legendFormat": "Used", "refId": "A"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "node_memory_Cached_bytes{instance=\"$instance\"}", "legendFormat": "Cached", "refId": "B"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "node_memory_Buffers_bytes{instance=\"$instance\"}", "legendFormat": "Buffers", "refId": "C"}
],
"title": "Memory Usage",
"type": "timeseries"
@@ -67,8 +67,8 @@
"id": 3,
"options": {"legend": {"calcs": ["mean", "max"], "displayMode": "list", "placement": "bottom", "showLegend": true}, "tooltip": {"mode": "multi", "sort": "desc"}},
"targets": [
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "rate(node_network_receive_bytes_total{host=~\"$host\",device!~\"lo|veth.*|br.*|docker.*\"}[5m])", "legendFormat": "{{device}} RX", "refId": "A"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "-rate(node_network_transmit_bytes_total{host=~\"$host\",device!~\"lo|veth.*|br.*|docker.*\"}[5m])", "legendFormat": "{{device}} TX", "refId": "B"}
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "rate(node_network_receive_bytes_total{instance=\"$instance\",device!~\"lo|veth.*|br.*|docker.*|lxc.*|cilium.*|ip6tnl.*|sit.*|teql.*|tunl.*\"}[5m])", "legendFormat": "{{device}} RX", "refId": "A"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "-rate(node_network_transmit_bytes_total{instance=\"$instance\",device!~\"lo|veth.*|br.*|docker.*|lxc.*|cilium.*|ip6tnl.*|sit.*|teql.*|tunl.*\"}[5m])", "legendFormat": "{{device}} TX", "refId": "B"}
],
"title": "Network I/O",
"type": "timeseries"
@@ -89,8 +89,8 @@
"id": 4,
"options": {"legend": {"calcs": ["mean", "max"], "displayMode": "list", "placement": "bottom", "showLegend": true}, "tooltip": {"mode": "multi", "sort": "desc"}},
"targets": [
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "rate(node_disk_read_bytes_total{host=~\"$host\"}[5m])", "legendFormat": "{{device}} Read", "refId": "A"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "-rate(node_disk_written_bytes_total{host=~\"$host\"}[5m])", "legendFormat": "{{device}} Write", "refId": "B"}
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "rate(node_disk_read_bytes_total{instance=\"$instance\",device!~\"rbd.*|dm-.*|loop.*\"}[5m])", "legendFormat": "{{device}} Read", "refId": "A"},
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "-rate(node_disk_written_bytes_total{instance=\"$instance\",device!~\"rbd.*|dm-.*|loop.*\"}[5m])", "legendFormat": "{{device}} Write", "refId": "B"}
],
"title": "Disk I/O",
"type": "timeseries"
@@ -112,7 +112,7 @@
"id": 5,
"options": {"displayMode": "lcd", "minVizHeight": 10, "minVizWidth": 0, "orientation": "horizontal", "reduceOptions": {"calcs": ["lastNotNull"], "fields": "", "values": false}, "showUnfilled": true},
"targets": [
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "(1 - (node_filesystem_avail_bytes{host=~\"$host\",fstype!~\"tmpfs|overlay\"} / node_filesystem_size_bytes{host=~\"$host\",fstype!~\"tmpfs|overlay\"})) * 100", "legendFormat": "{{mountpoint}}", "refId": "A"}
{"datasource": {"type": "prometheus", "uid": "prometheus"}, "expr": "(1 - (node_filesystem_avail_bytes{instance=\"$instance\",fstype!~\"tmpfs|overlay|rootfs\"} / node_filesystem_size_bytes{instance=\"$instance\",fstype!~\"tmpfs|overlay|rootfs\"})) * 100", "legendFormat": "{{mountpoint}}", "refId": "A"}
],
"title": "Filesystem Usage",
"type": "bargauge"
@@ -127,14 +127,31 @@
{
"current": {},
"datasource": {"type": "prometheus", "uid": "prometheus"},
"definition": "label_values(node_uname_info, host)",
"definition": "label_values(node_uname_info{job=\"node-exporter\"}, nodename)",
"hide": 0,
"includeAll": false,
"label": "Host",
"label": "Node",
"multi": false,
"name": "host",
"name": "node",
"options": [],
"query": {"query": "label_values(node_uname_info, host)", "refId": "PrometheusVariableQueryEditor-VariableQuery"},
"query": {"query": "label_values(node_uname_info{job=\"node-exporter\"}, nodename)", "refId": "PrometheusVariableQueryEditor-VariableQuery"},
"refresh": 2,
"regex": "",
"skipUrlSync": false,
"sort": 1,
"type": "query"
},
{
"current": {},
"datasource": {"type": "prometheus", "uid": "prometheus"},
"definition": "label_values(node_uname_info{job=\"node-exporter\", nodename=\"$node\"}, instance)",
"hide": 2,
"includeAll": false,
"label": "Instance",
"multi": false,
"name": "instance",
"options": [],
"query": {"query": "label_values(node_uname_info{job=\"node-exporter\", nodename=\"$node\"}, instance)", "refId": "PrometheusVariableQueryEditor-VariableQuery"},
"refresh": 2,
"regex": "",
"skipUrlSync": false,