[Fleet] show --install-servers in Add agent flyout if certain inputs are in agent policy (#214136)

## Summary

Closes https://github.com/elastic/kibana/issues/211899

Show `--install-servers` in Add agent flyout if agent policy has one of
`apm, fleet-server, cloudbeat` inputs

CSPM integration:
<img width="1561" alt="image"
src="https://github.com/user-attachments/assets/94fbc6f1-2e9a-4285-a8b9-7e2c3aa1a0ab"
/>

APM integration:
<img width="1561" alt="image"
src="https://github.com/user-attachments/assets/f7567ae3-bd4d-4efd-90d5-08a114178cf2"
/>

Agent policy without `--install-servers`:
<img width="1575" alt="image"
src="https://github.com/user-attachments/assets/1571675b-b32c-46be-8c92-d83bb9aa9d12"
/>

Cloud asset inventory (prerelease):
<img width="1572" alt="image"
src="https://github.com/user-attachments/assets/2ffb275a-5fad-430f-b757-5783e88c3a79"
/>



### Checklist

- [x] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios

x-pack/platform/plugins/shared/fleet/common/services/package_helpers.test.ts

@@ -8,6 +8,7 @@
 import {
   getRootIntegrations,
   getRootPrivilegedDataStreams,
+  hasInstallServersInputs,
   isRootPrivilegesRequired,
 } from './package_helpers';
 
@@ -119,3 +120,41 @@ describe('getRootIntegrations', () => {
     expect(res).toEqual([]);
   });
 });
+
+describe('hasInstallServersInputs', () => {
+  it('should return true if any package policy has fleet-server input', () => {
+    const res = hasInstallServersInputs([
+      {
+        inputs: [{ type: 'fleet-server' }],
+      } as any,
+    ]);
+    expect(res).toBe(true);
+  });
+
+  it('should return true if any package policy has apm input', () => {
+    const res = hasInstallServersInputs([
+      {
+        inputs: [{ type: 'apm' }],
+      } as any,
+    ]);
+    expect(res).toBe(true);
+  });
+
+  it('should return true if any package policy has cloudbeat input', () => {
+    const res = hasInstallServersInputs([
+      {
+        inputs: [{ type: 'cloudbeat/cis_aws' }],
+      } as any,
+    ]);
+    expect(res).toBe(true);
+  });
+
+  it('should return false if no package policy has install servers inputs', () => {
+    const res = hasInstallServersInputs([
+      {
+        inputs: [{ type: 'system' }],
+      } as any,
+    ]);
+    expect(res).toBe(false);
+  });
+});

x-pack/platform/plugins/shared/fleet/common/services/package_helpers.ts

@@ -42,3 +42,13 @@ export function getRootIntegrations(
     (pkg) => pkg!.name
   ).map((pkg) => ({ name: pkg!.name, title: pkg!.title }));
 }
+
+const INSTALL_SERVERS_INPUTS = ['cloudbeat', 'apm', 'fleet-server'];
+
+export function hasInstallServersInputs(packagePolicies: PackagePolicy[]): boolean {
+  return packagePolicies.some((policy) =>
+    policy.inputs.some(
+      (input) => INSTALL_SERVERS_INPUTS.includes(input.type) || input.type.startsWith('cloudbeat')
+    )
+  );
+}

x-pack/platform/plugins/shared/fleet/public/applications/fleet/sections/agent_policy/create_package_policy_page/multi_page_layout/components/page_steps/install_agent/install_agent_managed.tsx

@@ -21,7 +21,10 @@ import { ManualInstructions } from '../../../../../../../../../components/enroll
 
 import { KubernetesManifestApplyStep } from '../../../../../../../../../components/agent_enrollment_flyout/steps/run_k8s_apply_command_step';
 
-import { getRootIntegrations } from '../../../../../../../../../../common/services';
+import {
+  getRootIntegrations,
+  hasInstallServersInputs,
+} from '../../../../../../../../../../common/services';
 
 import type { InstallAgentPageProps } from './types';
 
@@ -64,11 +67,14 @@ export const InstallElasticAgentManagedPageStep: React.FC<InstallAgentPageProps>
   const isK8s =
     props.packageInfo.name === 'kubernetes' ? 'IS_KUBERNETES_MULTIPAGE' : 'IS_NOT_KUBERNETES';
 
+  const showInstallServers = hasInstallServersInputs(agentPolicy?.package_policies ?? []);
+
   const installManagedCommands = ManualInstructions({
     apiKey: enrollmentAPIKey.api_key,
     fleetProxy,
     fleetServerHost,
     agentVersion: agentVersion || '',
+    showInstallServers,
   });
 
   const steps = [

x-pack/platform/plugins/shared/fleet/public/components/agent_enrollment_flyout/steps/compute_steps.tsx

@@ -11,7 +11,7 @@ import { EuiSteps, EuiLoadingSpinner } from '@elastic/eui';
 
 import type { EuiContainedStepProps } from '@elastic/eui/src/components/steps/steps';
 
-import { getRootIntegrations } from '../../../../common/services';
+import { getRootIntegrations, hasInstallServersInputs } from '../../../../common/services';
 
 import { getGcpIntegrationDetailsFromAgentPolicy } from '../../cloud_security_posture/services';
 
@@ -177,6 +177,8 @@ export const ManagedSteps: React.FunctionComponent<InstructionProps> = ({
   const { gcpProjectId, gcpOrganizationId, gcpAccountType } =
     getGcpIntegrationDetailsFromAgentPolicy(selectedPolicy);
 
+  const showInstallServers = hasInstallServersInputs(agentPolicy?.package_policies ?? []);
+
   const installManagedCommands = ManualInstructions({
     apiKey: enrollToken,
     fleetServerHost,
@@ -187,6 +189,7 @@ export const ManagedSteps: React.FunctionComponent<InstructionProps> = ({
     gcpProjectId,
     gcpOrganizationId,
     gcpAccountType,
+    showInstallServers,
   });
 
   const instructionsSteps = useMemo(() => {

x-pack/platform/plugins/shared/fleet/public/components/enrollment_instructions/manual/index.tsx

@@ -11,7 +11,8 @@ import type { DownloadSource, FleetProxy } from '../../../types';
 function getfleetServerHostsEnrollArgs(
   apiKey: string,
   fleetServerHost: string,
-  fleetProxy?: FleetProxy
+  fleetProxy?: FleetProxy,
+  showInstallServers: boolean = false
 ) {
   const proxyHeadersArgs = fleetProxy?.proxy_headers
     ? Object.entries(fleetProxy.proxy_headers).reduce((acc, [proxyKey, proyVal]) => {
@@ -21,7 +22,10 @@ function getfleetServerHostsEnrollArgs(
       }, '')
     : '';
   const proxyArgs = fleetProxy ? ` --proxy-url=${fleetProxy.url}${proxyHeadersArgs}` : '';
-  return `--url=${fleetServerHost || `FLEET_SERVER_HOST`} --enrollment-token=${apiKey}${proxyArgs}`;
+  const showInstallServersArgs = showInstallServers ? ' --install-servers' : '';
+  return `--url=${
+    fleetServerHost || `FLEET_SERVER_HOST`
+  } --enrollment-token=${apiKey}${proxyArgs}${showInstallServersArgs}`;
 }
 
 export const getDownloadBaseUrl = (downloadSource?: DownloadSource) => {
@@ -67,6 +71,7 @@ export const ManualInstructions = ({
   gcpProjectId = '<PROJECT_ID>',
   gcpOrganizationId = '<ORGANIZATION_ID>',
   gcpAccountType,
+  showInstallServers,
 }: {
   apiKey: string;
   fleetServerHost: string;
@@ -77,8 +82,14 @@ export const ManualInstructions = ({
   gcpProjectId?: string;
   gcpOrganizationId?: string;
   gcpAccountType?: string;
+  showInstallServers?: boolean;
 }) => {
-  const enrollArgs = getfleetServerHostsEnrollArgs(apiKey, fleetServerHost, fleetProxy);
+  const enrollArgs = getfleetServerHostsEnrollArgs(
+    apiKey,
+    fleetServerHost,
+    fleetProxy,
+    showInstallServers
+  );
   const downloadBaseUrl = getDownloadBaseUrl(downloadSource);
 
   const fleetServerUrl = enrollArgs?.split('--url=')?.pop()?.split('--enrollment')[0];