[UII] Restrict agentless integrations to deployments with agentless e…

…nabled (#194885)

## Summary

Resolves #192486. This PR makes it so that on deployments without
agentless enabled:
1. Agentless-only integrations are hidden from the browse integration UI
2. Agentless-only integrations cannot be installed via API (unless force
flag is used)

⚠️ elastic/package-registry#1238 needs to be
completed for the below testing steps to work. Currently EPR does not
return `deployment_modes` property which is necessary for Fleet to know
which packages are agentless.

## How to test

1. Simulate agentless being available by adding the following to
kibana.yml:
```
xpack.fleet.agentless.enabled: true

# Simulate cloud
xpack.cloud.id: "foo"
xpack.cloud.base_url: "https://cloud.elastic.co"
xpack.cloud.organization_url: "/account/"
xpack.cloud.billing_url: "/billing/"
xpack.cloud.profile_url: "/user/settings/"
```
2. Go to `Integrations > Browse` and enable showing Beta integrations,
search for `connector` and you should see the agentless integrations:
Elastic Connectors, GitHub & GitHub Enterprise Server Connector, Google
Drive Connector
3. Install any one of them (they all come from the same package), it
should be successful
4. Uninstall them
5. Remove config changes to go back to a non-agentless deployment
6. Refresh Integrations list, the three integrations should no longer
appear
7. Try installing via API, an error should appear
```
POST kbn:/api/fleet/epm/packages/elastic_connectors/0.0.2
```
8. Try installing via API again with force flag, it should be
successful:
```
POST kbn:/api/fleet/epm/packages/elastic_connectors/0.0.2
{
  "force": true
}
```

### 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/plugins/fleet/common/services/agentless_policy_helper.test.ts

@@ -0,0 +1,287 @@
+/*
+ * 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 { RegistryPolicyTemplate } from '../types';
+
+import {
+  isAgentlessIntegration,
+  getAgentlessAgentPolicyNameFromPackagePolicyName,
+  isOnlyAgentlessIntegration,
+  isOnlyAgentlessPolicyTemplate,
+} from './agentless_policy_helper';
+
+describe('agentless_policy_helper', () => {
+  describe('isAgentlessIntegration', () => {
+    it('should return true if packageInfo is defined and has at least one agentless integration', () => {
+      const packageInfo = {
+        policy_templates: [
+          {
+            name: 'template1',
+            title: 'Template 1',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: true,
+              },
+              agentless: {
+                enabled: true,
+              },
+            },
+          },
+          {
+            name: 'template2',
+            title: 'Template 2',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: true,
+              },
+            },
+          },
+        ] as RegistryPolicyTemplate[],
+      };
+
+      const result = isAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(true);
+    });
+
+    it('should return false if packageInfo is defined but does not have agentless integrations', () => {
+      const packageInfo = {
+        policy_templates: [
+          {
+            name: 'template1',
+            title: 'Template 1',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: true,
+              },
+              agentless: {
+                enabled: false,
+              },
+            },
+          },
+          {
+            name: 'template2',
+            title: 'Template 2',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: false,
+              },
+              agentless: {
+                enabled: false,
+              },
+            },
+          },
+        ] as RegistryPolicyTemplate[],
+      };
+
+      const result = isAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(false);
+    });
+
+    it('should return false if packageInfo has no policy templates', () => {
+      const packageInfo = {
+        policy_templates: [],
+      };
+
+      const result = isAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(false);
+    });
+
+    it('should return false if packageInfo is undefined', () => {
+      const packageInfo = undefined;
+
+      const result = isAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(false);
+    });
+  });
+
+  describe('getAgentlessAgentPolicyNameFromPackagePolicyName', () => {
+    it('should return the agentless agent policy name based on the package policy name', () => {
+      const packagePolicyName = 'example-package-policy';
+
+      const result = getAgentlessAgentPolicyNameFromPackagePolicyName(packagePolicyName);
+
+      expect(result).toBe('Agentless policy for example-package-policy');
+    });
+  });
+
+  describe('isOnlyAgentlessIntegration', () => {
+    it('should return true if packageInfo is defined and has only agentless integration', () => {
+      const packageInfo = {
+        policy_templates: [
+          {
+            name: 'template1',
+            title: 'Template 1',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: false,
+              },
+              agentless: {
+                enabled: true,
+              },
+            },
+          },
+          {
+            name: 'template2',
+            title: 'Template 2',
+            description: '',
+            deployment_modes: {
+              agentless: {
+                enabled: true,
+              },
+            },
+          },
+        ] as RegistryPolicyTemplate[],
+      };
+
+      const result = isOnlyAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(true);
+    });
+
+    it('should return false if packageInfo is defined but has other deployment types', () => {
+      const packageInfo = {
+        policy_templates: [
+          {
+            name: 'template1',
+            title: 'Template 1',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: true,
+              },
+              agentless: {
+                enabled: true,
+              },
+            },
+          },
+          {
+            name: 'template2',
+            title: 'Template 2',
+            description: '',
+            deployment_modes: {
+              default: {
+                enabled: true,
+              },
+            },
+          },
+        ] as RegistryPolicyTemplate[],
+      };
+
+      const result = isOnlyAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(false);
+    });
+
+    it('should return false if packageInfo has no policy templates', () => {
+      const packageInfo = {
+        policy_templates: [],
+      };
+
+      const result = isOnlyAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(false);
+    });
+
+    it('should return false if packageInfo is undefined', () => {
+      const packageInfo = undefined;
+
+      const result = isOnlyAgentlessIntegration(packageInfo);
+
+      expect(result).toBe(false);
+    });
+  });
+
+  describe('isOnlyAgentlessPolicyTemplate', () => {
+    it('should return true if the policy template is only agentless', () => {
+      const policyTemplate = {
+        name: 'template1',
+        title: 'Template 1',
+        description: '',
+        deployment_modes: {
+          default: {
+            enabled: false,
+          },
+          agentless: {
+            enabled: true,
+          },
+        },
+      };
+      const policyTemplate2 = {
+        name: 'template2',
+        title: 'Template 2',
+        description: '',
+        deployment_modes: {
+          agentless: {
+            enabled: true,
+          },
+        },
+      };
+
+      const result = isOnlyAgentlessPolicyTemplate(policyTemplate);
+      const result2 = isOnlyAgentlessPolicyTemplate(policyTemplate2);
+
+      expect(result).toBe(true);
+      expect(result2).toBe(true);
+    });
+
+    it('should return false if the policy template has other deployment types', () => {
+      const policyTemplate = {
+        name: 'template1',
+        title: 'Template 1',
+        description: '',
+        deployment_modes: {
+          default: {
+            enabled: true,
+          },
+          agentless: {
+            enabled: true,
+          },
+        },
+      };
+      const policyTemplate2 = {
+        name: 'template2',
+        title: 'Template 2',
+        description: '',
+        deployment_modes: {
+          default: {
+            enabled: true,
+          },
+          agentless: {
+            enabled: false,
+          },
+        },
+      };
+
+      const result = isOnlyAgentlessPolicyTemplate(policyTemplate);
+      const result2 = isOnlyAgentlessPolicyTemplate(policyTemplate2);
+
+      expect(result).toBe(false);
+      expect(result2).toBe(false);
+    });
+
+    it('should return false if the policy template has no deployment modes', () => {
+      const policyTemplate = {
+        name: 'template1',
+        title: 'Template 1',
+        description: '',
+      };
+
+      const result = isOnlyAgentlessPolicyTemplate(policyTemplate);
+
+      expect(result).toBe(false);
+    });
+  });
+});

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

@@ -5,6 +5,47 @@
  * 2.0.
  */
 
+import type { PackageInfo, RegistryPolicyTemplate } from '../types';
+
+export const isAgentlessIntegration = (
+  packageInfo: Pick<PackageInfo, 'policy_templates'> | undefined
+) => {
+  if (
+    packageInfo?.policy_templates &&
+    packageInfo?.policy_templates.length > 0 &&
+    !!packageInfo?.policy_templates.find(
+      (policyTemplate) => policyTemplate?.deployment_modes?.agentless.enabled === true
+    )
+  ) {
+    return true;
+  }
+  return false;
+};
+
 export const getAgentlessAgentPolicyNameFromPackagePolicyName = (packagePolicyName: string) => {
   return `Agentless policy for ${packagePolicyName}`;
 };
+
+export const isOnlyAgentlessIntegration = (
+  packageInfo: Pick<PackageInfo, 'policy_templates'> | undefined
+) => {
+  if (
+    packageInfo?.policy_templates &&
+    packageInfo?.policy_templates.length > 0 &&
+    packageInfo?.policy_templates.every((policyTemplate) =>
+      isOnlyAgentlessPolicyTemplate(policyTemplate)
+    )
+  ) {
+    return true;
+  }
+  return false;
+};
+
+export const isOnlyAgentlessPolicyTemplate = (policyTemplate: RegistryPolicyTemplate) => {
+  return Boolean(
+    policyTemplate.deployment_modes &&
+      policyTemplate.deployment_modes.agentless.enabled === true &&
+      (!policyTemplate.deployment_modes.default ||
+        policyTemplate.deployment_modes.default.enabled === false)
+  );
+};

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/create_package_policy_page/single_page_layout/hooks/setup_technology.ts

@@ -20,7 +20,10 @@ import { SetupTechnology } from '../../../../../types';
 import { sendGetOneAgentPolicy, useStartServices } from '../../../../../hooks';
 import { SelectedPolicyTab } from '../../components';
 import { AGENTLESS_POLICY_ID } from '../../../../../../../../common/constants';
-import { getAgentlessAgentPolicyNameFromPackagePolicyName } from '../../../../../../../../common/services/agentless_policy_helper';
+import {
+  isAgentlessIntegration as isAgentlessIntegrationFn,
+  getAgentlessAgentPolicyNameFromPackagePolicyName,
+} from '../../../../../../../../common/services/agentless_policy_helper';
 
 export const useAgentless = () => {
   const config = useConfig();
@@ -45,14 +48,7 @@ export const useAgentless = () => {
 
   // When an integration has at least a policy template enabled for agentless
   const isAgentlessIntegration = (packageInfo: PackageInfo | undefined) => {
-    if (
-      isAgentlessEnabled &&
-      packageInfo?.policy_templates &&
-      packageInfo?.policy_templates.length > 0 &&
-      !!packageInfo?.policy_templates.find(
-        (policyTemplate) => policyTemplate?.deployment_modes?.agentless.enabled === true
-      )
-    ) {
+    if (isAgentlessEnabled && isAgentlessIntegrationFn(packageInfo)) {
       return true;
     }
     return false;

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/edit_package_policy_page/hooks/use_package_policy_steps.tsx

@@ -135,7 +135,6 @@ export function usePackagePolicySteps({
     setNewAgentPolicy,
     updateAgentPolicies,
     setSelectedPolicyTab,
-    packageInfo,
     packagePolicy,
     isEditPage: true,
     agentPolicies,