CONSOLE-5297: Display GPU metrics on the Node Details page

frontend/packages/console-app/locales/en/console-app.json

@@ -416,6 +416,17 @@
   "Reason": "Reason",
   "Updated": "Updated",
   "Changed": "Changed",
+  "GPU metrics": "GPU metrics",
+  "GPU count": "GPU count",
+  "GPU model": "GPU model",
+  "GPU capacity": "GPU capacity",
+  "GPU allocatable": "GPU allocatable",
+  "GPU device": "GPU device",
+  "Temperature": "Temperature",
+  "Power usage": "Power usage",
+  "FB memory used": "FB memory used",
+  "FB memory free": "FB memory free",
+  "GPU metrics are not available. Ensure DCGM exporter metrics are being scraped and labeled with the node name.": "GPU metrics are not available. Ensure DCGM exporter metrics are being scraped and labeled with the node name.",
   "Node details": "Node details",
   "External ID": "External ID",
   "Labels": "Labels",

frontend/packages/console-app/src/components/nodes/NodeDetails.tsx

@@ -1,6 +1,8 @@
 import type { FC } from 'react';
+import { PROMETHEUS_BASE_PATH } from '@console/internal/components/graphs/consts';
 import type { NodeKind } from '@console/internal/module/k8s';
 import NodeDetailsConditions from './NodeDetailsConditions';
+import NodeDetailsGpuMetrics from './NodeDetailsGpuMetrics';
 import NodeDetailsImages from './NodeDetailsImages';
 import NodeDetailsOverview from './NodeDetailsOverview';
 
@@ -11,6 +13,7 @@ type NodeDetailsProps = {
 const NodeDetails: FC<NodeDetailsProps> = ({ obj: node }) => (
   <>
     <NodeDetailsOverview node={node} />
+    {PROMETHEUS_BASE_PATH && <NodeDetailsGpuMetrics node={node} />}
     <NodeDetailsConditions node={node} />
     <NodeDetailsImages node={node} />
   </>

frontend/packages/console-app/src/components/nodes/NodeDetailsGpuMetrics.tsx

@@ -0,0 +1,276 @@
+import type { FC } from 'react';
+import { useMemo } from 'react';
+import {
+  Bullseye,
+  DescriptionList,
+  DescriptionListDescription,
+  DescriptionListGroup,
+  DescriptionListTerm,
+  Spinner,
+} from '@patternfly/react-core';
+import { useTranslation } from 'react-i18next';
+import type { PrometheusResponse, PrometheusResult } from '@console/internal/components/graphs';
+import { PrometheusEndpoint } from '@console/internal/components/graphs/helpers';
+import { usePrometheusPoll } from '@console/internal/components/graphs/prometheus-poll-hook';
+import { SectionHeading } from '@console/internal/components/utils/headings';
+import type { NodeKind } from '@console/internal/module/k8s';
+import PaneBody from '@console/shared/src/components/layout/PaneBody';
+import {
+  GpuMetricQuery,
+  getGpuMetricQueries,
+  nodeHasGpuCapacity,
+  GPU_RESOURCE_KEYS,
+} from './nodeGpuMetricsQueries';
+
+type GpuMetricResult = {
+  value: string;
+  modelName?: string;
+  device?: string;
+};
+
+type GpuDeviceRow = {
+  id: string;
+  label: string;
+  utilization: string;
+  temperature: string;
+  power: string;
+  fbUsed: string;
+  fbFree: string;
+};
+
+const resultsByGpu = (
+  response: PrometheusResponse | undefined,
+): Record<string, GpuMetricResult> => {
+  if (!response?.data?.result?.length) {
+    return {};
+  }
+  return response.data.result.reduce<Record<string, GpuMetricResult>>(
+    (acc, r: PrometheusResult) => {
+      const gpu = r.metric?.gpu ?? r.metric?.GPU_I_ID ?? r.metric?.UUID ?? r.metric?.device ?? '';
+      if (!gpu) {
+        return acc;
+      }
+      acc[gpu] = {
+        value: r.value?.[1] ?? '',
+        modelName: r.metric?.modelName,
+        device: r.metric?.device,
+      };
+      return acc;
+    },
+    {},
+  );
+};
+
+const collectGpuIds = (...maps: Record<string, GpuMetricResult>[]): string[] => {
+  const ids = new Set<string>();
+  maps.forEach((m) => Object.keys(m).forEach((k) => ids.add(k)));
+  return [...ids].sort();
+};
+
+const gpuDeviceLabel = (gpuId: string, meta: GpuMetricResult | undefined): string => {
+  const index = `GPU ${gpuId}`;
+  const model = meta?.modelName;
+  if (model) {
+    return `${index} \u2014 ${model}`;
+  }
+  const dev = meta?.device;
+  if (dev) {
+    return `${index} (${dev})`;
+  }
+  return index;
+};
+
+const findFirstMeta = (...maps: Record<string, GpuMetricResult>[]): GpuMetricResult | undefined => {
+  for (const m of maps) {
+    for (const entry of Object.values(m)) {
+      if (entry.modelName) return entry;
+    }
+  }
+  return Object.values(maps[0] ?? {})[0];
+};
+
+const formatValue = (val: string | undefined, suffix: string): string => {
+  if (val === undefined || val === '') return '-';
+  const num = parseFloat(val);
+  if (Number.isNaN(num)) return '-';
+  return `${Math.round(num * 10) / 10} ${suffix}`;
+};
+
+const formatMemMiB = (val: string | undefined): string => {
+  if (val === undefined || val === '') return '-';
+  const mib = parseFloat(val);
+  if (Number.isNaN(mib)) return '-';
+  if (mib >= 1024) return `${(mib / 1024).toFixed(1)} GiB`;
+  return `${Math.round(mib)} MiB`;
+};
+
+type NodeDetailsGpuMetricsProps = {
+  node: NodeKind;
+};
+
+const NodeDetailsGpuMetrics: FC<NodeDetailsGpuMetricsProps> = ({ node }) => {
+  const { t } = useTranslation();
+  const nodeName = node.metadata.name;
+
+  const hasCapacity = nodeHasGpuCapacity(node.status?.capacity);
+
+  const queries = useMemo(() => getGpuMetricQueries(nodeName), [nodeName]);
+
+  const [countResponse, , countLoading] = usePrometheusPoll({
+    endpoint: PrometheusEndpoint.QUERY,
+    query: queries[GpuMetricQuery.GPU_COUNT],
+  });
+  const [utilResponse, , utilLoading] = usePrometheusPoll({
+    endpoint: PrometheusEndpoint.QUERY,
+    query: queries[GpuMetricQuery.GPU_UTILIZATION],
+  });
+  const [tempResponse, , tempLoading] = usePrometheusPoll({
+    endpoint: PrometheusEndpoint.QUERY,
+    query: queries[GpuMetricQuery.GPU_TEMPERATURE],
+  });
+  const [powerResponse, , powerLoading] = usePrometheusPoll({
+    endpoint: PrometheusEndpoint.QUERY,
+    query: queries[GpuMetricQuery.GPU_POWER_USAGE],
+  });
+  const [fbUsedResponse, , fbUsedLoading] = usePrometheusPoll({
+    endpoint: PrometheusEndpoint.QUERY,
+    query: queries[GpuMetricQuery.GPU_FB_USED],
+  });
+  const [fbFreeResponse, , fbFreeLoading] = usePrometheusPoll({
+    endpoint: PrometheusEndpoint.QUERY,
+    query: queries[GpuMetricQuery.GPU_FB_FREE],
+  });
+
+  const isLoading =
+    countLoading || utilLoading || tempLoading || powerLoading || fbUsedLoading || fbFreeLoading;
+
+  const utilMap = useMemo(() => resultsByGpu(utilResponse), [utilResponse]);
+  const tempMap = useMemo(() => resultsByGpu(tempResponse), [tempResponse]);
+  const powerMap = useMemo(() => resultsByGpu(powerResponse), [powerResponse]);
+  const fbUsedMap = useMemo(() => resultsByGpu(fbUsedResponse), [fbUsedResponse]);
+  const fbFreeMap = useMemo(() => resultsByGpu(fbFreeResponse), [fbFreeResponse]);
+
+  const gpuIds = useMemo(() => collectGpuIds(utilMap, tempMap, powerMap, fbUsedMap, fbFreeMap), [
+    utilMap,
+    tempMap,
+    powerMap,
+    fbUsedMap,
+    fbFreeMap,
+  ]);
+
+  const hasMetrics = gpuIds.length > 0;
+
+  if (!hasCapacity && !isLoading && !hasMetrics) {
+    return null;
+  }
+
+  const gpuCountValue = countResponse?.data?.result?.[0]?.value?.[1];
+  const gpuCountStr = (() => {
+    if (gpuCountValue === undefined || gpuCountValue === '') return undefined;
+    const parsed = parseFloat(gpuCountValue);
+    return Number.isNaN(parsed) ? undefined : String(Math.round(parsed));
+  })();
+
+  const gpuCapacityStr = GPU_RESOURCE_KEYS.map((key) => node.status?.capacity?.[key])
+    .filter(Boolean)
+    .join(', ');
+  const gpuAllocatableStr = GPU_RESOURCE_KEYS.map((key) => node.status?.allocatable?.[key])
+    .filter(Boolean)
+    .join(', ');
+
+  const firstMeta = findFirstMeta(utilMap, tempMap, powerMap, fbUsedMap, fbFreeMap);
+  const gpuModelStr = firstMeta?.modelName;
+
+  const rows: GpuDeviceRow[] = gpuIds.map((id) => {
+    const meta = utilMap[id] ?? tempMap[id] ?? powerMap[id] ?? fbUsedMap[id] ?? fbFreeMap[id];
+    return {
+      id,
+      label: gpuDeviceLabel(id, meta),
+      utilization: formatValue(utilMap[id]?.value, '%'),
+      temperature: formatValue(tempMap[id]?.value, '°C'),
+      power: formatValue(powerMap[id]?.value, 'W'),
+      fbUsed: formatMemMiB(fbUsedMap[id]?.value),
+      fbFree: formatMemMiB(fbFreeMap[id]?.value),
+    };
+  });
+
+  return (
+    <PaneBody>
+      <SectionHeading text={t('console-app~GPU metrics')} />
+
+      {(gpuCountStr || gpuCapacityStr || gpuAllocatableStr || gpuModelStr) && (
+        <DescriptionList className="co-m-pane__body-group" isHorizontal>
+          {gpuCountStr && (
+            <DescriptionListGroup>
+              <DescriptionListTerm>{t('console-app~GPU count')}</DescriptionListTerm>
+              <DescriptionListDescription>{gpuCountStr}</DescriptionListDescription>
+            </DescriptionListGroup>
+          )}
+          {gpuModelStr && (
+            <DescriptionListGroup>
+              <DescriptionListTerm>{t('console-app~GPU model')}</DescriptionListTerm>
+              <DescriptionListDescription>{gpuModelStr}</DescriptionListDescription>
+            </DescriptionListGroup>
+          )}
+          {gpuCapacityStr && (
+            <DescriptionListGroup>
+              <DescriptionListTerm>{t('console-app~GPU capacity')}</DescriptionListTerm>
+              <DescriptionListDescription>{gpuCapacityStr}</DescriptionListDescription>
+            </DescriptionListGroup>
+          )}
+          {gpuAllocatableStr && (
+            <DescriptionListGroup>
+              <DescriptionListTerm>{t('console-app~GPU allocatable')}</DescriptionListTerm>
+              <DescriptionListDescription>{gpuAllocatableStr}</DescriptionListDescription>
+            </DescriptionListGroup>
+          )}
+        </DescriptionList>
+      )}
+
+      {isLoading && (
+        <Bullseye>
+          <Spinner size="lg" />
+        </Bullseye>
+      )}
+
+      {!isLoading && hasMetrics && (
+        <div className="co-table-container pf-v6-u-mt-md">
+          <table className="pf-v6-c-table pf-m-compact pf-m-border-rows">
+            <thead className="pf-v6-c-table__thead">
+              <tr className="pf-v6-c-table__tr">
+                <th className="pf-v6-c-table__th">{t('console-app~GPU device')}</th>
+                <th className="pf-v6-c-table__th">{t('console-app~Utilization')}</th>
+                <th className="pf-v6-c-table__th">{t('console-app~Temperature')}</th>
+                <th className="pf-v6-c-table__th">{t('console-app~Power usage')}</th>
+                <th className="pf-v6-c-table__th">{t('console-app~FB memory used')}</th>
+                <th className="pf-v6-c-table__th">{t('console-app~FB memory free')}</th>
+              </tr>
+            </thead>
+            <tbody className="pf-v6-c-table__tbody">
+              {rows.map((row) => (
+                <tr className="pf-v6-c-table__tr" key={row.id}>
+                  <td className="pf-v6-c-table__td">{row.label}</td>
+                  <td className="pf-v6-c-table__td">{row.utilization}</td>
+                  <td className="pf-v6-c-table__td">{row.temperature}</td>
+                  <td className="pf-v6-c-table__td">{row.power}</td>
+                  <td className="pf-v6-c-table__td">{row.fbUsed}</td>
+                  <td className="pf-v6-c-table__td">{row.fbFree}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      )}
+
+      {!isLoading && !hasMetrics && hasCapacity && (
+        <p className="text-secondary">
+          {t(
+            'console-app~GPU metrics are not available. Ensure DCGM exporter metrics are being scraped and labeled with the node name.',
+          )}
+        </p>
+      )}
+    </PaneBody>
+  );
+};
+
+export default NodeDetailsGpuMetrics;