[Infra][ObsUX] Hosts & Container Logs only overview

x-pack/plugins/observability_solution/infra/public/components/asset_details/components/kpis/container_kpi_charts.tsx

@@ -6,7 +6,7 @@
  */
 
 import React from 'react';
-import { EuiFlexItem, useEuiTheme } from '@elastic/eui';
+import { EuiFlexItem } from '@elastic/eui';
 import type { DataView } from '@kbn/data-views-plugin/public';
 import type { Filter, Query, TimeRange } from '@kbn/es-query';
 import { Kpi } from './kpi';
@@ -79,10 +79,8 @@ const DockerKpiCharts = ({
   searchSessionId,
   loading = false,
 }: ContainerKpiChartsProps) => {
-  const { euiTheme } = useEuiTheme();
   const charts = useDockerContainerKpiCharts({
     dataViewId: dataView?.id,
-    seriesColor: euiTheme.colors.lightestShade,
   });
 
   return (
@@ -112,10 +110,8 @@ const KubernetesKpiCharts = ({
   searchSessionId,
   loading = false,
 }: ContainerKpiChartsProps) => {
-  const { euiTheme } = useEuiTheme();
   const charts = useK8sContainerKpiCharts({
     dataViewId: dataView?.id,
-    seriesColor: euiTheme.colors.lightestShade,
   });
 
   return (

x-pack/plugins/observability_solution/infra/public/components/asset_details/components/kpis/host_kpi_charts.tsx

@@ -6,7 +6,7 @@
  */
 
 import React from 'react';
-import { EuiFlexItem, useEuiTheme } from '@elastic/eui';
+import { EuiFlexItem } from '@elastic/eui';
 import type { DataView } from '@kbn/data-views-plugin/public';
 import type { Filter, Query, TimeRange } from '@kbn/es-query';
 import { Kpi } from './kpi';
@@ -31,11 +31,9 @@ export const HostKpiCharts = ({
   searchSessionId,
   loading = false,
 }: HostKpiChartsProps) => {
-  const { euiTheme } = useEuiTheme();
   const charts = useHostKpiCharts({
     dataViewId: dataView?.id,
     getSubtitle,
-    seriesColor: euiTheme.colors.lightestShade,
   });
 
   return (

x-pack/plugins/observability_solution/infra/public/components/asset_details/hooks/use_chart_series_color.test.ts

@@ -0,0 +1,43 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { useEuiTheme } from '@elastic/eui';
+import { renderHook } from '@testing-library/react';
+import { useChartSeriesColor } from './use_chart_series_color';
+
+describe('useChartSeriesColor', () => {
+  let seriesDefaultColor: string;
+
+  beforeEach(() => {
+    const { result } = renderHook(() => useEuiTheme());
+
+    // Don't try to test a hardcoded value, just use what is provided by EUI.
+    // If in the future this value changes, the tests won't break.
+    seriesDefaultColor = result.current.euiTheme.colors.backgroundLightText;
+  });
+
+  it('returns a default color value if given no input', () => {
+    const { result } = renderHook(() => useChartSeriesColor());
+
+    expect(result.current).not.toBe('');
+    expect(result.current).toBe(seriesDefaultColor);
+  });
+
+  it('returns a default color value if given an empty string', () => {
+    const { result } = renderHook(() => useChartSeriesColor(''));
+
+    expect(result.current).not.toBe('');
+    expect(result.current).toBe(seriesDefaultColor);
+  });
+
+  it('returns the provided color input', () => {
+    const { result } = renderHook(() => useChartSeriesColor('#fff'));
+
+    expect(result.current).not.toBe(seriesDefaultColor);
+    expect(result.current).toBe('#fff');
+  });
+});

x-pack/plugins/observability_solution/infra/public/components/asset_details/hooks/use_chart_series_color.ts

@@ -0,0 +1,21 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { useEuiTheme } from '@elastic/eui';
+
+/**
+ * Provides either the input color, or yields the default EUI theme
+ * color for use as the KPI chart series color.
+ * @param seriesColor A user-defined color value
+ * @returns Either the input `seriesColor` or the default color from EUI
+ */
+export const useChartSeriesColor = (seriesColor?: string): string => {
+  const { euiTheme } = useEuiTheme();
+
+  // Prevent empty string being used as a valid color
+  return seriesColor || euiTheme.colors.backgroundLightText;
+};

x-pack/plugins/observability_solution/infra/public/components/asset_details/hooks/use_container_metrics_charts.ts

@@ -9,6 +9,7 @@ import { i18n } from '@kbn/i18n';
 import { findInventoryModel } from '@kbn/metrics-data-access-plugin/common';
 import useAsync from 'react-use/lib/useAsync';
 import { ContainerMetricTypes } from '../charts/types';
+import { useChartSeriesColor } from './use_chart_series_color';
 
 const getSubtitleFromFormula = (value: string) =>
   value.startsWith('max')
@@ -106,6 +107,8 @@ export const useDockerContainerKpiCharts = ({
   dataViewId?: string;
   seriesColor?: string;
 }) => {
+  seriesColor = useChartSeriesColor(seriesColor);
+
   const { value: charts = [] } = useAsync(async () => {
     const model = findInventoryModel('container');
     const { cpu, memory } = await model.metrics.getCharts();
@@ -134,6 +137,8 @@ export const useK8sContainerKpiCharts = ({
   dataViewId?: string;
   seriesColor?: string;
 }) => {
+  seriesColor = useChartSeriesColor(seriesColor);
+
   const { value: charts = [] } = useAsync(async () => {
     const model = findInventoryModel('container');
     const { cpu, memory } = await model.metrics.getCharts();

x-pack/plugins/observability_solution/infra/public/components/asset_details/hooks/use_host_metrics_charts.ts

@@ -10,6 +10,7 @@ import { findInventoryModel } from '@kbn/metrics-data-access-plugin/common';
 import { useMemo } from 'react';
 import useAsync from 'react-use/lib/useAsync';
 import { HostMetricTypes } from '../charts/types';
+import { useChartSeriesColor } from './use_chart_series_color';
 
 export const useHostCharts = ({
   metric,
@@ -87,6 +88,8 @@ export const useHostKpiCharts = ({
   seriesColor?: string;
   getSubtitle?: (formulaValue: string) => string;
 }) => {
+  seriesColor = useChartSeriesColor(seriesColor);
+
   const { value: charts = [] } = useAsync(async () => {
     const model = findInventoryModel('host');
     const { cpu, memory, disk } = await model.metrics.getCharts();

x-pack/plugins/observability_solution/infra/public/components/asset_details/hooks/use_log_charts.ts

@@ -0,0 +1,77 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { i18n } from '@kbn/i18n';
+import { useMemo } from 'react';
+import { LensConfig } from '@kbn/lens-embeddable-utils/config_builder';
+import { useChartSeriesColor } from './use_chart_series_color';
+
+const LOG_RATE = i18n.translate('xpack.infra.assetDetails.charts.logRate', {
+  defaultMessage: 'Log Rate',
+});
+
+const LOG_ERROR_RATE = i18n.translate('xpack.infra.assetDetails.charts.logErrorRate', {
+  defaultMessage: 'Log Error Rate',
+});
+
+const logRateMetric: LensConfig & { id: string } = {
+  id: 'logMetric',
+  chartType: 'metric',
+  title: LOG_RATE,
+  label: LOG_RATE,
+  trendLine: true,
+  value: 'count()',
+  format: 'number',
+  decimals: 1,
+  normalizeByUnit: 's',
+};
+
+const logErrorRateMetric: LensConfig & { id: string } = {
+  id: 'logErrorMetric',
+  chartType: 'metric',
+  title: LOG_ERROR_RATE,
+  label: LOG_ERROR_RATE,
+  trendLine: true,
+  value:
+    'count(kql=\'log.level: "error" OR log.level: "ERROR" OR error.log.level: "error" OR error.log.level: "ERROR"\')',
+  format: 'number',
+  decimals: 1,
+  normalizeByUnit: 's',
+};
+
+export const useLogsCharts = ({
+  dataViewId,
+  seriesColor,
+}: {
+  dataViewId?: string;
+  seriesColor?: string;
+}) => {
+  seriesColor = useChartSeriesColor(seriesColor);
+
+  return useMemo(() => {
+    const dataset = dataViewId && {
+      dataset: {
+        index: dataViewId,
+      },
+    };
+
+    return {
+      charts: [
+        {
+          ...logRateMetric,
+          ...dataset,
+          seriesColor,
+        },
+        {
+          ...logErrorRateMetric,
+          ...dataset,
+          seriesColor,
+        },
+      ],
+    };
+  }, [dataViewId, seriesColor]);
+};

x-pack/plugins/observability_solution/infra/public/components/asset_details/hooks/use_page_header.tsx

@@ -26,6 +26,8 @@ import { LinkToNodeDetails } from '../links';
 import { ContentTabIds, type LinkOptions, type Tab, type TabIds } from '../types';
 import { useAssetDetailsRenderPropsContext } from './use_asset_details_render_props';
 import { useTabSwitcherContext } from './use_tab_switcher';
+import { useEntitySummary } from './use_entity_summary';
+import { isMetricsSignal } from '../utils/get_data_stream_types';
 
 type TabItem = NonNullable<Pick<EuiPageHeaderProps, 'tabs'>['tabs']>[number];
 
@@ -140,9 +142,31 @@ const useFeatureFlagTabs = () => {
   };
 };
 
+const useMetricsTabs = () => {
+  const { asset } = useAssetDetailsRenderPropsContext();
+  const { dataStreams } = useEntitySummary({
+    entityType: asset.type,
+    entityId: asset.id,
+  });
+
+  const isMetrics = isMetricsSignal(dataStreams);
+
+  const hasMetricsTab = useCallback(
+    (tabItem: Tab) => {
+      return isMetrics || tabItem.id !== ContentTabIds.METRICS;
+    },
+    [isMetrics]
+  );
+
+  return {
+    hasMetricsTab,
+  };
+};
+
 const useTabs = (tabs: Tab[]) => {
   const { showTab, activeTabId } = useTabSwitcherContext();
   const { isTabEnabled } = useFeatureFlagTabs();
+  const { hasMetricsTab } = useMetricsTabs();
 
   const onTabClick = useCallback(
     (tabId: TabIds) => {
@@ -153,16 +177,18 @@ const useTabs = (tabs: Tab[]) => {
 
   const tabEntries: TabItem[] = useMemo(
     () =>
-      tabs.filter(isTabEnabled).map(({ name, ...tab }) => {
-        return {
-          ...tab,
-          'data-test-subj': `infraAssetDetails${capitalize(tab.id)}Tab`,
-          onClick: () => onTabClick(tab.id),
-          isSelected: tab.id === activeTabId,
-          label: name,
-        };
-      }),
-    [activeTabId, isTabEnabled, onTabClick, tabs]
+      tabs
+        .filter((tab) => isTabEnabled(tab) && hasMetricsTab(tab))
+        .map(({ name, ...tab }) => {
+          return {
+            ...tab,
+            'data-test-subj': `infraAssetDetails${capitalize(tab.id)}Tab`,
+            onClick: () => onTabClick(tab.id),
+            isSelected: tab.id === activeTabId,
+            label: name,
+          };
+        }),
+    [activeTabId, isTabEnabled, hasMetricsTab, onTabClick, tabs]
   );
 
   return { tabEntries };

x-pack/plugins/observability_solution/infra/public/components/asset_details/tabs/overview/logs.tsx

@@ -0,0 +1,59 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import React, { useMemo } from 'react';
+import type { DataView } from '@kbn/data-views-plugin/public';
+import type { TimeRange } from '@kbn/es-query';
+import { EuiFlexGroup, EuiFlexItem } from '@elastic/eui';
+import {
+  findInventoryFields,
+  type InventoryItemType,
+} from '@kbn/metrics-data-access-plugin/common';
+import { buildCombinedAssetFilter } from '../../../../utils/filters/build';
+import { useSearchSessionContext } from '../../../../hooks/use_search_session';
+import { useLogsCharts } from '../../hooks/use_log_charts';
+import { Kpi } from '../../components/kpis/kpi';
+
+interface Props {
+  dataView?: DataView;
+  assetId: string;
+  assetType: InventoryItemType;
+  dateRange: TimeRange;
+}
+
+export const LogsContent = ({ assetId, assetType, dataView, dateRange }: Props) => {
+  const { searchSessionId } = useSearchSessionContext();
+
+  const filters = useMemo(() => {
+    return [
+      buildCombinedAssetFilter({
+        field: findInventoryFields(assetType).id,
+        values: [assetId],
+        dataView,
+      }),
+    ];
+  }, [dataView, assetId, assetType]);
+
+  const { charts } = useLogsCharts({
+    dataViewId: dataView?.id,
+  });
+
+  return (
+    <EuiFlexGroup direction="row" gutterSize="s" data-test-subj="infraAssetDetailsLogsGrid">
+      {charts.map((chartProps, index) => (
+        <EuiFlexItem key={index}>
+          <Kpi
+            {...chartProps}
+            dateRange={dateRange}
+            filters={filters}
+            searchSessionId={searchSessionId}
+          />
+        </EuiFlexItem>
+      ))}
+    </EuiFlexGroup>
+  );
+};