[Fleet] Add instructions and generation of a service token for Fleet Server onboarding

x-pack/plugins/fleet/common/constants/routes.ts

@@ -76,6 +76,7 @@ export const SETTINGS_API_ROUTES = {
 // App API routes
 export const APP_API_ROUTES = {
   CHECK_PERMISSIONS_PATTERN: `${API_ROOT}/check-permissions`,
+  GENERATE_SERVICE_TOKEN_PATTERN: `${API_ROOT}/service-tokens`,
 };
 
 // Agent API routes

x-pack/plugins/fleet/common/services/routes.ts

@@ -164,6 +164,7 @@ export const settingsRoutesService = {
 
 export const appRoutesService = {
   getCheckPermissionsPath: () => APP_API_ROUTES.CHECK_PERMISSIONS_PATTERN,
+  getRegenerateServiceTokenPath: () => APP_API_ROUTES.GENERATE_SERVICE_TOKEN_PATTERN,
 };
 
 export const enrollmentAPIKeyRouteService = {

x-pack/plugins/fleet/common/types/rest_spec/app.ts

@@ -9,3 +9,8 @@ export interface CheckPermissionsResponse {
   error?: 'MISSING_SECURITY' | 'MISSING_SUPERUSER_ROLE';
   success: boolean;
 }
+
+export interface GenerateServiceTokenResponse {
+  name: string;
+  value: string;
+}

x-pack/plugins/fleet/public/applications/fleet/hooks/use_request/app.ts

@@ -6,7 +6,7 @@
  */
 
 import { appRoutesService } from '../../services';
-import type { CheckPermissionsResponse } from '../../types';
+import type { CheckPermissionsResponse, GenerateServiceTokenResponse } from '../../types';
 
 import { sendRequest } from './use_request';
 
@@ -16,3 +16,10 @@ export const sendGetPermissionsCheck = () => {
     method: 'get',
   });
 };
+
+export const sendGenerateServiceToken = () => {
+  return sendRequest<GenerateServiceTokenResponse>({
+    path: appRoutesService.getRegenerateServiceTokenPath(),
+    method: 'post',
+  });
+};

x-pack/plugins/fleet/public/applications/fleet/sections/agents/agent_requirements_page/fleet_server_requirement_page.tsx

@@ -5,7 +5,7 @@
  * 2.0.
  */
 
-import React from 'react';
+import React, { useState, useMemo, useCallback } from 'react';
 import {
   EuiButton,
   EuiFlexGroup,
@@ -16,62 +16,229 @@ import {
   EuiText,
   EuiLink,
   EuiEmptyPrompt,
+  EuiSteps,
+  EuiCodeBlock,
+  EuiCallOut,
+  EuiSelect,
 } from '@elastic/eui';
 import styled from 'styled-components';
-import { FormattedMessage } from 'react-intl';
+import { i18n } from '@kbn/i18n';
+import { FormattedMessage } from '@kbn/i18n/react';
 
-import { useStartServices } from '../../../hooks';
+import { DownloadStep } from '../components/agent_enrollment_flyout/steps';
+import { useStartServices, useGetOutputs, sendGenerateServiceToken } from '../../../hooks';
+
+const FlexItemWithMinWidth = styled(EuiFlexItem)`
+  min-width: 0px;
+  max-width: 100%;
+`;
 
 export const ContentWrapper = styled(EuiFlexGroup)`
   height: 100%;
+  margin: 0 auto;
+  max-width: 800px;
 `;
 
-function renderOnPremInstructions() {
+// Otherwise the copy button is over the text
+const CommandCode = styled.pre({
+  overflow: 'scroll',
+});
+
+type PLATFORM_TYPE = 'linux-mac' | 'windows' | 'rpm-deb';
+const PLATFORM_OPTIONS: Array<{ text: string; value: PLATFORM_TYPE }> = [
+  { text: 'Linux / macOS', value: 'linux-mac' },
+  { text: 'Windows', value: 'windows' },
+  { text: 'RPM / DEB', value: 'rpm-deb' },
+];
+
+const OnPremInstructions: React.FC = () => {
+  const outputsRequest = useGetOutputs();
+  const { notifications } = useStartServices();
+  const [serviceToken, setServiceToken] = useState<string>();
+  const [isLoadingServiceToken, setIsLoadingServiceToken] = useState<boolean>(false);
+  const [platform, setPlatform] = useState<PLATFORM_TYPE>('linux-mac');
+
+  const output = outputsRequest.data?.items?.[0];
+  const esHost = output?.hosts?.[0];
+
+  const installCommand = useMemo((): string => {
+    if (!serviceToken || !esHost) {
+      return '';
+    }
+    switch (platform) {
+      case 'linux-mac':
+        return `sudo ./elastic-agent install -f --fleet-server-es=${esHost} --fleet-server-service-token=${serviceToken}`;
+      case 'windows':
+        return `.\\elastic-agent.exe install --fleet-server-es=${esHost} --fleet-server-service-token=${serviceToken}`;
+      case 'rpm-deb':
+        return `sudo elastic-agent enroll -f --fleet-server-es=${esHost} --fleet-server-service-token=${serviceToken}`;
+      default:
+        return '';
+    }
+  }, [serviceToken, esHost, platform]);
+
+  const getServiceToken = useCallback(async () => {
+    setIsLoadingServiceToken(true);
+    try {
+      const { data } = await sendGenerateServiceToken();
+      if (data?.value) {
+        setServiceToken(data?.value);
+      }
+    } catch (err) {
+      notifications.toasts.addError(err, {
+        title: i18n.translate('xpack.fleet.fleetServerSetup.errorGeneratingTokenTitleText', {
+          defaultMessage: 'Error generating token',
+        }),
+      });
+    }
+
+    setIsLoadingServiceToken(false);
+  }, [notifications]);
+
   return (
-    <EuiPanel
-      paddingSize="none"
-      grow={false}
-      hasShadow={false}
-      hasBorder={true}
-      className="eui-textCenter"
-    >
-      <EuiEmptyPrompt
-        title={
-          <h2>
-            <FormattedMessage
-              id="xpack.fleet.fleetServerSetup.setupTitle"
-              defaultMessage="Add a Fleet Server"
-            />
-          </h2>
-        }
-        body={
+    <EuiPanel paddingSize="l" grow={false} hasShadow={false} hasBorder={true}>
+      <EuiSpacer size="s" />
+      <EuiText className="eui-textCenter">
+        <h2>
           <FormattedMessage
-            id="xpack.fleet.fleetServerSetup.setupText"
-            defaultMessage="A Fleet Server is required before you can enroll agents with Fleet. See the Fleet User Guide for instructions on how to add a Fleet Server."
+            id="xpack.fleet.fleetServerSetup.setupTitle"
+            defaultMessage="Add a Fleet Server"
           />
-        }
-        actions={
-          <EuiButton
-            iconSide="right"
-            iconType="popout"
-            fill
-            isLoading={false}
-            type="submit"
-            href="https://ela.st/add-fleet-server"
-            target="_blank"
-          >
-            <FormattedMessage
-              id="xpack.fleet.fleetServerSetup.setupGuideLink"
-              defaultMessage="Fleet User Guide"
-            />
-          </EuiButton>
-        }
+        </h2>
+        <EuiSpacer size="m" />
+        <FormattedMessage
+          id="xpack.fleet.fleetServerSetup.setupText"
+          defaultMessage="A Fleet Server is required before you can enroll agents with Fleet. See the {userGuideLink} for more information."
+          values={{
+            userGuideLink: (
+              <EuiLink href="https://ela.st/add-fleet-server" external>
+                <FormattedMessage
+                  id="xpack.fleet.fleetServerSetup.setupGuideLink"
+                  defaultMessage="Fleet User Guide"
+                />
+              </EuiLink>
+            ),
+          }}
+        />
+      </EuiText>
+      <EuiSpacer size="l" />
+      <EuiSteps
+        className="eui-textLeft"
+        steps={[
+          DownloadStep(),
+          {
+            title: i18n.translate('xpack.fleet.fleetServerSetup.stepGenerateServiceTokenTitle', {
+              defaultMessage: 'Generate a service token',
+            }),
+            children: (
+              <>
+                <EuiText>
+                  <FormattedMessage
+                    id="xpack.fleet.fleetServerSetup.generateServiceTokenDescription"
+                    defaultMessage="A service token grants Fleet Server permissions to write to Elasticsearch."
+                  />
+                </EuiText>
+                <EuiSpacer size="m" />
+                {!serviceToken ? (
+                  <EuiFlexGroup>
+                    <EuiFlexItem grow={false}>
+                      <EuiButton
+                        fill
+                        isLoading={isLoadingServiceToken}
+                        isDisabled={isLoadingServiceToken}
+                        onClick={() => {
+                          getServiceToken();
+                        }}
+                      >
+                        <FormattedMessage
+                          id="xpack.fleet.fleetServerSetup.generateServiceTokenButton"
+                          defaultMessage="Generate service token"
+                        />
+                      </EuiButton>
+                    </EuiFlexItem>
+                  </EuiFlexGroup>
+                ) : (
+                  <>
+                    <EuiCallOut size="s">
+                      <FormattedMessage
+                        id="xpack.fleet.fleetServerSetup.saveServiceTokenDescription"
+                        defaultMessage="Save your service token information. This will be shown only once."
+                      />
+                    </EuiCallOut>
+                    <EuiSpacer size="m" />
+                    <EuiFlexGroup gutterSize="s" alignItems="center">
+                      <EuiFlexItem grow={false}>
+                        <strong>
+                          <FormattedMessage
+                            id="xpack.fleet.fleetServerSetup.serviceTokenLabel"
+                            defaultMessage="Service token"
+                          />
+                        </strong>
+                      </EuiFlexItem>
+                      <FlexItemWithMinWidth>
+                        <EuiCodeBlock paddingSize="m" isCopyable>
+                          <CommandCode>{serviceToken}</CommandCode>
+                        </EuiCodeBlock>
+                      </FlexItemWithMinWidth>
+                    </EuiFlexGroup>
+                  </>
+                )}
+              </>
+            ),
+          },
+          {
+            title: i18n.translate('xpack.fleet.fleetServerSetup.stepInstallAgentTitle', {
+              defaultMessage: 'Install the Elastic Agent as a Fleet Server',
+            }),
+            status: !serviceToken ? 'disabled' : undefined,
+            children: serviceToken ? (
+              <>
+                <EuiText>
+                  <FormattedMessage
+                    id="xpack.fleet.fleetServerSetup.installAgentDescription"
+                    defaultMessage="From the agent directory, run the appropriate command to install, enroll, and start an Elastic Agent as a Fleet Server. Requires administrator privileges."
+                  />
+                </EuiText>
+                <EuiSpacer size="l" />
+                <EuiSelect
+                  prepend={
+                    <EuiText>
+                      <FormattedMessage
+                        id="xpack.fleet.fleetServerSetup.platformSelectLabel"
+                        defaultMessage="Platform"
+                      />
+                    </EuiText>
+                  }
+                  options={PLATFORM_OPTIONS}
+                  value={platform}
+                  onChange={(e) => setPlatform(e.target.value as PLATFORM_TYPE)}
+                  aria-label={i18n.translate(
+                    'xpack.fleet.fleetServerSetup.platformSelectAriaLabel',
+                    {
+                      defaultMessage: 'Platform',
+                    }
+                  )}
+                />
+                <EuiSpacer size="s" />
+                <EuiCodeBlock
+                  fontSize="m"
+                  isCopyable={true}
+                  paddingSize="m"
+                  language="console"
+                  whiteSpace="pre"
+                >
+                  <CommandCode>{installCommand}</CommandCode>
+                </EuiCodeBlock>
+              </>
+            ) : null,
+          },
+        ]}
       />
     </EuiPanel>
   );
-}
+};
 
-function renderCloudInstructions(deploymentUrl: string) {
+const CloudInstructions: React.FC<{ deploymentUrl: string }> = ({ deploymentUrl }) => {
   return (
     <EuiPanel
       paddingSize="none"
@@ -126,19 +293,24 @@ function renderCloudInstructions(deploymentUrl: string) {
       />
     </EuiPanel>
   );
-}
+};
 
 export const FleetServerRequirementPage = () => {
   const startService = useStartServices();
   const deploymentUrl = startService.cloud?.deploymentUrl;
 
   return (
     <>
-      <ContentWrapper justifyContent="center" alignItems="center">
+      <ContentWrapper gutterSize="l" justifyContent="center" alignItems="center" direction="column">
+        <FlexItemWithMinWidth grow={false}>
+          {deploymentUrl ? (
+            <CloudInstructions deploymentUrl={deploymentUrl} />
+          ) : (
+            <OnPremInstructions />
+          )}
+        </FlexItemWithMinWidth>
         <EuiFlexItem grow={false}>
-          {deploymentUrl ? renderCloudInstructions(deploymentUrl) : renderOnPremInstructions()}
-          <EuiSpacer size="l" />
-          <EuiFlexGroup gutterSize="s" alignItems="center" justifyContent="center">
+          <EuiFlexGroup gutterSize="s">
             <EuiFlexItem grow={false}>
               <EuiLoadingSpinner size="m" />
             </EuiFlexItem>

x-pack/plugins/fleet/public/applications/fleet/sections/agents/components/agent_enrollment_flyout/index.tsx

@@ -129,12 +129,12 @@ export const AgentEnrollmentFlyout: React.FunctionComponent<Props> = ({
 
       <EuiFlyoutBody
         banner={
-          fleetServerHosts.length === 0 ? (
+          fleetServerHosts.length === 0 && mode === 'managed' ? (
             <MissingFleetServerHostCallout onClose={onClose} />
           ) : undefined
         }
       >
-        {fleetServerHosts.length === 0 ? null : mode === 'managed' ? (
+        {fleetServerHosts.length === 0 && mode === 'managed' ? null : mode === 'managed' ? (
           <ManagedInstructions agentPolicies={agentPolicies} />
         ) : (
           <StandaloneInstructions agentPolicies={agentPolicies} />

x-pack/plugins/fleet/public/applications/fleet/types/index.ts

@@ -88,6 +88,7 @@ export {
   PutSettingsResponse,
   // API schemas - app
   CheckPermissionsResponse,
+  GenerateServiceTokenResponse,
   // EPM types
   AssetReference,
   AssetsGroupedByServiceByType,

x-pack/plugins/fleet/server/errors/index.ts

@@ -47,6 +47,7 @@ export class AgentUnenrollmentError extends IngestManagerError {}
 export class AgentPolicyDeletionError extends IngestManagerError {}
 
 export class FleetSetupError extends IngestManagerError {}
+export class GenerateServiceTokenError extends IngestManagerError {}
 
 export class ArtifactsClientError extends IngestManagerError {}
 export class ArtifactsClientAccessDeniedError extends IngestManagerError {