[Profiling] Empty state (elastic#172295)

The empty state will show up when `has_setup` from the Profiling Status
API returns `false`.

<img width="1276" alt="Screenshot 2023-11-30 at 15 06 30"
src="https://github.com/elastic/kibana/assets/55978943/97a313be-db4f-4a5a-af36-df574f9793d5">
<img width="1036" alt="Screenshot 2023-11-30 at 14 47 48"
src="https://github.com/elastic/kibana/assets/55978943/2622cad6-6763-4abc-9469-fa292137efda">

x-pack/plugins/apm/public/components/app/profiling_overview/index.tsx

@@ -11,13 +11,18 @@ import {
   EuiFlexGroup,
   EuiFlexItem,
   EuiLink,
+  EuiLoadingSpinner,
   EuiSpacer,
   EuiTabbedContent,
   EuiTabbedContentProps,
 } from '@elastic/eui';
+import { css } from '@emotion/react';
 import { i18n } from '@kbn/i18n';
 import { useKibana } from '@kbn/kibana-react-plugin/public';
-import { EmbeddableProfilingSearchBar } from '@kbn/observability-shared-plugin/public';
+import {
+  EmbeddableProfilingSearchBar,
+  ProfilingEmptyState,
+} from '@kbn/observability-shared-plugin/public';
 import React, { useMemo } from 'react';
 import { useHistory } from 'react-router-dom';
 import { ApmDocumentType } from '../../../../common/document_type';
@@ -38,7 +43,7 @@ export function ProfilingOverview() {
     path: { serviceName },
     query: { rangeFrom, rangeTo, environment, kuery },
   } = useApmParams('/services/{serviceName}/profiling');
-  const { isProfilingAvailable } = useProfilingPlugin();
+  const { isProfilingAvailable, isLoading } = useProfilingPlugin();
   const { start, end, refreshTimeRange } = useTimeRange({ rangeFrom, rangeTo });
   const preferred = usePreferredDataSourceAndBucketSize({
     start,
@@ -101,8 +106,21 @@ export function ProfilingOverview() {
     ];
   }, [end, environment, kuery, preferred?.source, serviceName, start]);
 
-  if (!isProfilingAvailable) {
-    return null;
+  if (isLoading) {
+    return (
+      <div
+        css={css`
+          display: flex;
+          justify-content: center;
+        `}
+      >
+        <EuiLoadingSpinner size="m" />
+      </div>
+    );
+  }
+
+  if (isProfilingAvailable === false) {
+    return <ProfilingEmptyState />;
   }
 
   return (

x-pack/plugins/apm/public/components/routing/templates/apm_service_template/index.tsx

@@ -6,34 +6,36 @@
  */
 
 import {
+  EuiBadge,
   EuiFlexGroup,
   EuiFlexItem,
   EuiLoadingLogo,
   EuiPageHeaderProps,
   EuiSpacer,
   EuiTitle,
   EuiToolTip,
-  EuiBadge,
 } from '@elastic/eui';
-import { useLocation } from 'react-router-dom';
 import { i18n } from '@kbn/i18n';
 import { enableAwsLambdaMetrics } from '@kbn/observability-plugin/common';
 import { omit } from 'lodash';
 import React from 'react';
-import { useHistory } from 'react-router-dom';
+import { useHistory, useLocation } from 'react-router-dom';
 import {
-  isMobileAgentName,
-  isRumAgentName,
   isAWSLambdaAgentName,
   isAzureFunctionsAgentName,
-  isServerlessAgentName,
+  isMobileAgentName,
+  isRumAgentName,
   isRumOrMobileAgentName,
+  isServerlessAgentName,
 } from '../../../../../common/agent_name';
+import { ApmFeatureFlagName } from '../../../../../common/apm_feature_flags';
+import { ServerlessType } from '../../../../../common/serverless';
 import { useApmPluginContext } from '../../../../context/apm_plugin/use_apm_plugin_context';
 import { ApmServiceContextProvider } from '../../../../context/apm_service/apm_service_context';
 import { useApmServiceContext } from '../../../../context/apm_service/use_apm_service_context';
 import { useBreadcrumb } from '../../../../context/breadcrumbs/use_breadcrumb';
 import { ServiceAnomalyTimeseriesContextProvider } from '../../../../context/service_anomaly_timeseries/service_anomaly_timeseries_context';
+import { useApmFeatureFlag } from '../../../../hooks/use_apm_feature_flag';
 import { useApmParams } from '../../../../hooks/use_apm_params';
 import { useApmRouter } from '../../../../hooks/use_apm_router';
 import { isPending, useFetcher } from '../../../../hooks/use_fetcher';
@@ -46,10 +48,6 @@ import { ServiceIcons } from '../../../shared/service_icons';
 import { TechnicalPreviewBadge } from '../../../shared/technical_preview_badge';
 import { ApmMainTemplate } from '../apm_main_template';
 import { AnalyzeDataButton } from './analyze_data_button';
-import { ServerlessType } from '../../../../../common/serverless';
-import { useApmFeatureFlag } from '../../../../hooks/use_apm_feature_flag';
-import { ApmFeatureFlagName } from '../../../../../common/apm_feature_flags';
-import { useProfilingPlugin } from '../../../../hooks/use_profiling_plugin';
 
 type Tab = NonNullable<EuiPageHeaderProps['tabs']>[0] & {
   key:
@@ -220,7 +218,6 @@ function useTabs({ selectedTab }: { selectedTab: Tab['key'] }) {
     plugins,
     capabilities
   );
-  const { isProfilingAvailable } = useProfilingPlugin();
 
   const router = useApmRouter();
   const isInfraTabAvailable = useApmFeatureFlag(
@@ -407,7 +404,6 @@ function useTabs({ selectedTab }: { selectedTab: Tab['key'] }) {
         defaultMessage: 'Universal Profiling',
       }),
       hidden:
-        !isProfilingAvailable ||
         isRumOrMobileAgentName(agentName) ||
         isAWSLambdaAgentName(serverlessType),
       append: (

x-pack/plugins/apm/public/hooks/use_profiling_plugin.tsx

@@ -7,7 +7,7 @@
 
 import { apmEnableProfilingIntegration } from '@kbn/observability-plugin/common';
 import { useApmPluginContext } from '../context/apm_plugin/use_apm_plugin_context';
-import { useFetcher } from './use_fetcher';
+import { isPending, useFetcher } from './use_fetcher';
 
 export function useProfilingPlugin() {
   const { plugins, core } = useApmPluginContext();
@@ -16,7 +16,7 @@ export function useProfilingPlugin() {
     true
   );
 
-  const { data } = useFetcher((callApmApi) => {
+  const { data, status } = useFetcher((callApmApi) => {
     return callApmApi('GET /internal/apm/profiling/status');
   }, []);
 
@@ -30,5 +30,6 @@ export function useProfilingPlugin() {
     isProfilingPluginInitialized: data?.initialized,
     isProfilingIntegrationEnabled,
     isProfilingAvailable,
+    isLoading: isPending(status),
   };
 }

x-pack/plugins/infra/public/components/asset_details/content/content.tsx

@@ -9,7 +9,7 @@ import { EuiFlexGroup, EuiFlexItem } from '@elastic/eui';
 import React from 'react';
 import { DatePicker } from '../date_picker/date_picker';
 import { useTabSwitcherContext } from '../hooks/use_tab_switcher';
-import { Anomalies, Metadata, Processes, Osquery, Logs, Overview, Profiling } from '../tabs';
+import { Anomalies, Logs, Metadata, Osquery, Overview, Processes, Profiling } from '../tabs';
 import { ContentTabIds } from '../types';
 
 export const Content = () => {
@@ -22,7 +22,6 @@ export const Content = () => {
             ContentTabIds.LOGS,
             ContentTabIds.METADATA,
             ContentTabIds.PROCESSES,
-            ContentTabIds.PROFILING,
             ContentTabIds.ANOMALIES,
           ]}
         />

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

@@ -0,0 +1,42 @@
+/*
+ * 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 type { ProfilingStatus } from '@kbn/profiling-utils';
+import { useEffect } from 'react';
+import { useHTTPRequest } from '../../../hooks/use_http_request';
+import { useRequestObservable } from './use_request_observable';
+
+interface Props {
+  isActive: boolean;
+}
+
+export function useProfilingStatusData({ isActive }: Props) {
+  const { request$ } = useRequestObservable<ProfilingStatus>();
+  const { loading, error, response, makeRequest } = useHTTPRequest<ProfilingStatus>(
+    `/api/infra/profiling/status`,
+    'GET',
+    undefined,
+    undefined,
+    undefined,
+    undefined,
+    true
+  );
+
+  useEffect(() => {
+    if (!isActive) {
+      return;
+    }
+
+    request$.next(makeRequest);
+  }, [isActive, makeRequest, request$]);
+
+  return {
+    loading,
+    error,
+    response,
+  };
+}

x-pack/plugins/infra/public/components/asset_details/tabs/profiling/profiling.tsx

@@ -8,10 +8,23 @@ import { i18n } from '@kbn/i18n';
 
 import { EuiSpacer, EuiTabbedContent, type EuiTabbedContentProps } from '@elastic/eui';
 import React from 'react';
+import { ProfilingEmptyState } from '@kbn/observability-shared-plugin/public';
+import { EuiLoadingSpinner } from '@elastic/eui';
+import { css } from '@emotion/react';
 import { Flamegraph } from './flamegraph';
 import { Functions } from './functions';
+import { DatePicker } from '../../date_picker/date_picker';
+import { useProfilingStatusData } from '../../hooks/use_profiling_status_data';
+import { useTabSwitcherContext } from '../../hooks/use_tab_switcher';
+import { ContentTabIds } from '../../types';
+import { ErrorPrompt } from './error_prompt';
 
 export function Profiling() {
+  const { activeTabId } = useTabSwitcherContext();
+  const { error, loading, response } = useProfilingStatusData({
+    isActive: activeTabId === ContentTabIds.PROFILING,
+  });
+
   const tabs: EuiTabbedContentProps['tabs'] = [
     {
       id: 'flamegraph',
@@ -39,9 +52,33 @@ export function Profiling() {
     },
   ];
 
+  if (loading) {
+    return (
+      <div
+        css={css`
+          display: flex;
+          justify-content: center;
+        `}
+      >
+        <EuiLoadingSpinner size="m" />
+      </div>
+    );
+  }
+
+  if (error !== null) {
+    return <ErrorPrompt />;
+  }
+
   return (
     <>
-      <EuiTabbedContent tabs={tabs} initialSelectedTab={tabs[0]} />
+      {response?.has_setup === false ? (
+        <ProfilingEmptyState />
+      ) : (
+        <>
+          <DatePicker />
+          <EuiTabbedContent tabs={tabs} initialSelectedTab={tabs[0]} />
+        </>
+      )}
     </>
   );
 }

x-pack/plugins/infra/server/plugin.ts

@@ -118,7 +118,7 @@ export const config: PluginConfigDescriptor<InfraConfig> = {
        * before enabling this flag.
        */
       profilingEnabled: offeringBasedSchema({
-        traditional: schema.boolean({ defaultValue: false }),
+        traditional: schema.boolean({ defaultValue: true }),
         serverless: schema.boolean({ defaultValue: false }),
       }),
     }),

x-pack/plugins/observability_shared/public/components/profiling/profiling_empty_state.tsx

@@ -0,0 +1,65 @@
+/*
+ * 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 { EuiButton, EuiEmptyPrompt, EuiImage, EuiLink } from '@elastic/eui';
+import { useKibana } from '@kbn/kibana-react-plugin/public';
+import { i18n } from '@kbn/i18n';
+import React from 'react';
+import profilingImg from '../../images/profiling.png';
+
+export function ProfilingEmptyState() {
+  const { services } = useKibana();
+  return (
+    <EuiEmptyPrompt
+      icon={<EuiImage size="fullWidth" src={profilingImg} alt="" />}
+      title={
+        <h2>
+          {i18n.translate('xpack.observabilityShared.profilingEmptyState.title', {
+            defaultMessage:
+              'Improve computational efficiency. Debug performance regressions. Reduce cloud spend.',
+          })}
+        </h2>
+      }
+      layout="horizontal"
+      color="plain"
+      hasBorder
+      hasShadow={false}
+      body={
+        <>
+          <p>
+            {i18n.translate('xpack.observabilityShared.profilingEmptyState.body', {
+              defaultMessage:
+                'Elastic Universal Profiling is a whole-system, always-on, continuous profiling solution that eliminates the need for code instrumentation, recompilation, on-host debug symbols, or service restarts. Leveraging eBPF, Universal Profiling operates within the Linux kernel space, capturing only the needed data with minimal overhead in an unobtrusive manner.',
+            })}
+          </p>
+        </>
+      }
+      actions={[
+        <EuiButton
+          href={services.http?.basePath.prepend(`/app/profiling`)}
+          data-test-subj="infraProfilingEmptyStateAddProfilingButton"
+          color="primary"
+          fill
+        >
+          {i18n.translate('xpack.observabilityShared.profilingEmptyState.addProfiling', {
+            defaultMessage: 'Add profiling',
+          })}
+        </EuiButton>,
+        <EuiLink
+          href={`${services.docLinks?.ELASTIC_WEBSITE_URL}/guide/en/observability/${services.docLinks?.DOC_LINK_VERSION}/profiling-get-started.html`}
+          data-test-subj="infraProfilingEmptyStateGoToDocsButton"
+          target="_blank"
+          external
+        >
+          {i18n.translate('xpack.observabilityShared.profilingEmptyState.goToDocs', {
+            defaultMessage: 'Go to docs',
+          })}
+        </EuiLink>,
+      ]}
+    />
+  );
+}

x-pack/plugins/observability_shared/public/index.ts

@@ -88,3 +88,5 @@ export {
   EmbeddableProfilingSearchBar,
   type EmbeddableProfilingSearchBarProps,
 } from './components/profiling/embeddables';
+
+export { ProfilingEmptyState } from './components/profiling/profiling_empty_state';