[UII] Support integration-level outputs (elastic#189125)

## Summary

Resolves elastic#143905. This PR adds support for integration-level outputs.
This means that different integrations within the same agent policy can
now be configured to send data to different locations. This feature is
gated behind `enterprise` level subscription.

For each input, the agent policy will configure sending data to the
following outputs in decreasing order of priority:
1. Output set specifically on the integration policy
2. Output set specifically on the integration's parent agent policy
(including the case where an integration policy belongs to multiple
agent policies)
3. Global default data output set via Fleet Settings

Integration-level outputs will respect the same rules as agent
policy-level outputs:
- Certain integrations are disallowed from using certain output types,
attempting to add them to each other via creation, updating, or
"defaulting", will fail
- `fleet-server`, `synthetics`, and `apm` can only use same-cluster
Elasticsearch output
- When an output is deleted, any integrations that were specifically
using it will "clear" their output configuration and revert back to
either `elastic#2` or `elastic#3` in the above list
- When an output is edited, all agent policies across all spaces that
use it will be bumped to a new revision, this includes:
- Agent policies that have that output specifically set in their
settings (existing behavior)
- Agent policies that contain integrations which specifically has that
output set (new behavior)
- When a proxy is edited, the same new revision bump above will apply
for any outputs using that proxy

The final agent policy YAML that is generated will have:
- `outputs` block that includes:
- Data and monitoring outputs set at the agent policy level (existing
behavior)
- Any additional outputs set at the integration level, if they differ
from the above
- `outputs_permissions` block that includes permissions for each
Elasticsearch output depending on which integrations and/or agent
monitoring are assigned to it

Integration policies table now includes `Output` column. If the output
is defaulting to agent policy-level output, or global setting output, a
tooltip is shown:

<img width="1392" alt="image"
src="https://github.com/user-attachments/assets/5534716b-49b5-402a-aa4a-4ba6533e0ca8">

Configuring an integration-level output is done under Advanced options
in the policy editor. Setting to the blank value will "clear" the output
configuration. The list of available outputs is filtered by what outputs
are available for that integration (see above):

<img width="799" alt="image"
src="https://github.com/user-attachments/assets/617af6f4-e8f8-40b1-b476-848f8ac96e76">

An example of failure: ES output cannot be changed to Kafka while there
is an integration
<img width="1289" alt="image"
src="https://github.com/user-attachments/assets/11847eb5-fd5d-4271-8464-983d7ab39218">


## TODO
- [x] Adjust side effects of editing/deleting output when policies use
it across different spaces
- [x] Add API integration tests
- [x] Update OpenAPI spec
- [x] Create doc issue

### Checklist

Delete any items that are not applicable to this PR.

- [x] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)
- [ ]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials
- [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

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

packages/kbn-check-mappings-update-cli/current_fields.json

@@ -630,6 +630,7 @@
     "is_managed",
     "name",
     "namespace",
+    "output_id",
     "overrides",
     "package",
     "package.name",

packages/kbn-check-mappings-update-cli/current_mappings.json

@@ -2101,6 +2101,9 @@
       "namespace": {
         "type": "keyword"
       },
+      "output_id": {
+        "type": "keyword"
+      },
       "overrides": {
         "index": false,
         "type": "flattened"

src/core/server/integration_tests/ci_checks/saved_objects/check_registered_types.test.ts

@@ -119,7 +119,7 @@ describe('checking migration metadata changes on all registered SO types', () =>
         "ingest-agent-policies": "90625b4a5ded9d4867358fcccc14a57c0454fcee",
         "ingest-download-sources": "279a68147e62e4d8858c09ad1cf03bd5551ce58d",
         "ingest-outputs": "daafff49255ab700e07491376fe89f04fc998b91",
-        "ingest-package-policies": "2c0f7c72d211bb7d3076ce2fc0bd368f9c16d274",
+        "ingest-package-policies": "53a94064674835fdb35e5186233bcd7052eabd22",
         "ingest_manager_settings": "91445219e7115ff0c45d1dabd5d614a80b421797",
         "inventory-view": "b8683c8e352a286b4aca1ab21003115a4800af83",
         "kql-telemetry": "93c1d16c1a0dfca9c8842062cf5ef8f62ae401ad",

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

@@ -6,7 +6,7 @@
  */
 
 /**
- * ATTENTION: Mappings for Fleet are defined in the ElasticSearch repo.
+ * ATTENTION: Mappings for Fleet are defined in the Elasticsearch repo.
  *
  * The following mappings declared here closely mirror them
  * But they are only used to perform validation on the endpoints using ListWithKuery
@@ -54,6 +54,7 @@ export const PACKAGE_POLICIES_MAPPINGS = {
     is_managed: { type: 'boolean' },
     policy_id: { type: 'keyword' },
     policy_ids: { type: 'keyword' },
+    output_id: { type: 'keyword' },
     package: {
       properties: {
         name: { type: 'keyword' },

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

@@ -29,6 +29,7 @@ export const DEFAULT_OUTPUT: NewOutput = {
 export const SERVERLESS_DEFAULT_OUTPUT_ID = 'es-default-output';
 
 export const LICENCE_FOR_PER_POLICY_OUTPUT = 'platinum';
+export const LICENCE_FOR_OUTPUT_PER_INTEGRATION = 'enterprise';
 
 /**
  * Kafka constants

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

@@ -13,3 +13,5 @@ export const inputsFormat = {
   Simplified: 'simplified',
   Legacy: 'legacy',
 } as const;
+
+export const LICENCE_FOR_MULTIPLE_AGENT_POLICIES = 'enterprise';

x-pack/plugins/fleet/common/openapi/bundled.json

@@ -7484,8 +7484,7 @@
             "type": "string"
           },
           "output_id": {
-            "type": "string",
-            "deprecated": true
+            "type": "string"
           },
           "inputs": {
             "type": "array",

x-pack/plugins/fleet/common/openapi/bundled.yaml

@@ -4804,7 +4804,6 @@ components:
           type: string
         output_id:
           type: string
-          deprecated: true
         inputs:
           type: array
           items:

x-pack/plugins/fleet/common/openapi/components/schemas/new_package_policy.yaml

@@ -22,7 +22,6 @@ properties:
     type: string
   output_id:
     type: string
-    deprecated: true
   inputs:
     type: array
     items:

x-pack/plugins/fleet/common/openapi/components/schemas/update_package_policy.yaml

@@ -23,8 +23,6 @@ properties:
     type: string
   output_id:
     type: string
-    description: Not supported output can be set at the agent policy level only
-    deprecated: true
   inputs:
     type: array
     items:

x-pack/plugins/fleet/common/services/simplified_package_policy_helper.test.ts

@@ -37,6 +37,7 @@ describe('toPackagePolicy', () => {
           namespace: 'default',
           policy_id: 'policy123',
           policy_ids: ['policy123'],
+          output_id: 'output123',
           description: 'Test description',
           inputs: {
             'nginx-logfile': {

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

@@ -43,6 +43,7 @@ export interface SimplifiedPackagePolicy {
   id?: string;
   policy_id?: string;
   policy_ids: string[];
+  output_id?: string;
   namespace: string;
   name: string;
   description?: string;
@@ -147,6 +148,7 @@ export function simplifiedPackagePolicytoNewPackagePolicy(
   const {
     policy_id: policyId,
     policy_ids: policyIds,
+    output_id: outputId,
     namespace,
     name,
     description,
@@ -161,6 +163,10 @@ export function simplifiedPackagePolicytoNewPackagePolicy(
     description
   );
 
+  if (outputId) {
+    packagePolicy.output_id = outputId;
+  }
+
   if (packagePolicy.package && options?.experimental_data_stream_features) {
     packagePolicy.package.experimental_data_stream_features =
       options.experimental_data_stream_features;

x-pack/plugins/fleet/common/types/models/package_policy.ts

@@ -81,6 +81,8 @@ export interface NewPackagePolicy {
   /** @deprecated */
   policy_id?: string;
   policy_ids: string[];
+  // Nullable to allow user to reset to default outputs
+  output_id?: string | null;
   package?: PackagePolicyPackage;
   inputs: NewPackagePolicyInput[];
   vars?: PackagePolicyConfigRecord;

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

@@ -63,6 +63,7 @@ export type PostDeletePackagePoliciesResponse = Array<{
   package?: PackagePolicyPackage;
   policy_id?: string;
   policy_ids?: string[];
+  output_id?: string;
   // Support generic errors
   statusCode?: number;
   body?: {

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/create_package_policy_page/components/steps/components/hooks.tsx

@@ -8,6 +8,10 @@
 import { useMemo } from 'react';
 import { useHistory } from 'react-router-dom';
 
+import { LICENCE_FOR_OUTPUT_PER_INTEGRATION } from '../../../../../../../../../common/constants';
+import { getAllowedOutputTypesForIntegration } from '../../../../../../../../../common/services/output_helpers';
+import { useGetOutputs, useLicense } from '../../../../../../hooks';
+
 export function useDataStreamId() {
   const history = useHistory();
 
@@ -16,3 +20,21 @@ export function useDataStreamId() {
     return searchParams.get('datastreamId') ?? undefined;
   }, [history.location.search]);
 }
+
+export function useOutputs(packageName: string) {
+  const licenseService = useLicense();
+  const canUseOutputPerIntegration = licenseService.hasAtLeast(LICENCE_FOR_OUTPUT_PER_INTEGRATION);
+  const { data: outputsData, isLoading } = useGetOutputs();
+  const allowedOutputTypes = getAllowedOutputTypesForIntegration(packageName);
+  const allowedOutputs = useMemo(() => {
+    if (!outputsData || !canUseOutputPerIntegration) {
+      return [];
+    }
+    return outputsData.items.filter((output) => allowedOutputTypes.includes(output.type));
+  }, [allowedOutputTypes, canUseOutputPerIntegration, outputsData]);
+  return {
+    isLoading,
+    canUseOutputPerIntegration,
+    allowedOutputs,
+  };
+}

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/create_package_policy_page/components/steps/step_define_package_policy.tsx

@@ -20,6 +20,7 @@ import {
   EuiLink,
   EuiCallOut,
   EuiSpacer,
+  EuiSelect,
 } from '@elastic/eui';
 
 import styled from 'styled-components';
@@ -32,6 +33,7 @@ import { isAdvancedVar } from '../../services';
 import type { PackagePolicyValidationResults } from '../../services';
 
 import { PackagePolicyInputVarField } from './components';
+import { useOutputs } from './components/hooks';
 
 // on smaller screens, fields should be displayed in one column
 const FormGroupResponsiveFields = styled(EuiDescribedFormGroup)`
@@ -81,6 +83,14 @@ export const StepDefinePackagePolicy: React.FunctionComponent<{
       });
     }
 
+    // Outputs
+    const {
+      isLoading: isOutputsLoading,
+      canUseOutputPerIntegration,
+      allowedOutputs,
+    } = useOutputs(packageInfo.name);
+
+    // Managed policy
     const isManaged = packagePolicy.is_managed;
 
     return validationResults ? (
@@ -245,6 +255,7 @@ export const StepDefinePackagePolicy: React.FunctionComponent<{
             {isShowingAdvanced ? (
               <EuiFlexItem>
                 <EuiFlexGroup direction="column" gutterSize="m">
+                  {/* Namespace  */}
                   <EuiFlexItem>
                     <EuiFormRow
                       isInvalid={!!validationResults.namespace}
@@ -264,7 +275,7 @@ export const StepDefinePackagePolicy: React.FunctionComponent<{
                         ) : (
                           <FormattedMessage
                             id="xpack.fleet.createPackagePolicy.stepConfigure.packagePolicyNamespaceHelpLabel"
-                            defaultMessage="Change the default namespace inherited from the selected Agent policy. This setting changes the name of the integration's data stream. {learnMore}."
+                            defaultMessage="Change the default namespace inherited from the parent agent policy. This setting changes the name of the integration's data stream. {learnMore}."
                             values={{
                               learnMore: (
                                 <EuiLink
@@ -304,6 +315,49 @@ export const StepDefinePackagePolicy: React.FunctionComponent<{
                       />
                     </EuiFormRow>
                   </EuiFlexItem>
+
+                  {/* Output */}
+                  {canUseOutputPerIntegration && (
+                    <EuiFlexItem>
+                      <EuiFormRow
+                        label={
+                          <FormattedMessage
+                            id="xpack.fleet.createPackagePolicy.stepConfigure.packagePolicyOutputInputLabel"
+                            defaultMessage="Output"
+                          />
+                        }
+                        helpText={
+                          <FormattedMessage
+                            id="xpack.fleet.createPackagePolicy.stepConfigure.packagePolicyOutputHelpLabel"
+                            defaultMessage="Change the default output inherited from the parent agent policy. This setting changes where the integration's data is sent."
+                          />
+                        }
+                      >
+                        <EuiSelect
+                          data-test-subj="packagePolicyOutputInput"
+                          isLoading={isOutputsLoading}
+                          options={[
+                            {
+                              value: '',
+                              text: '',
+                            },
+                            ...allowedOutputs.map((output) => ({
+                              value: output.id,
+                              text: output.name,
+                            })),
+                          ]}
+                          value={packagePolicy.output_id || ''}
+                          onChange={(e) => {
+                            updatePackagePolicy({
+                              output_id: e.target.value.trim() || null,
+                            });
+                          }}
+                        />
+                      </EuiFormRow>
+                    </EuiFlexItem>
+                  )}
+
+                  {/* Data retention settings info */}
                   <EuiFlexItem>
                     <EuiFormRow
                       label={

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/details_page/components/package_policies/package_policies_table.tsx

@@ -37,6 +37,8 @@ import {
   usePermissionCheck,
   useStartServices,
   useMultipleAgentPolicies,
+  useGetOutputs,
+  useDefaultOutput,
 } from '../../../../../hooks';
 import { pkgKeyFromPackageInfo } from '../../../../../services';
 
@@ -106,6 +108,16 @@ export const PackagePoliciesTable: React.FunctionComponent<Props> = ({
     return packagePolicy.policy_ids.length || 0;
   }, []);
 
+  const { data: outputsData, isLoading: isOutputsLoading } = useGetOutputs();
+  const { output: defaultOutputData } = useDefaultOutput();
+  const outputNamesById = useMemo(() => {
+    const outputs = outputsData?.items ?? [];
+    return outputs.reduce<Record<string, string>>((acc, output) => {
+      acc[output.id] = output.name;
+      return acc;
+    }, {});
+  }, [outputsData]);
+
   const columns = useMemo(
     (): EuiInMemoryTableProps<InMemoryPackagePolicy>['columns'] => [
       {
@@ -115,6 +127,7 @@ export const PackagePoliciesTable: React.FunctionComponent<Props> = ({
         name: i18n.translate('xpack.fleet.policyDetails.packagePoliciesTable.nameColumnTitle', {
           defaultMessage: 'Integration policy',
         }),
+        width: '35%',
         render: (value: string, packagePolicy: InMemoryPackagePolicy) => (
           <EuiFlexGroup gutterSize="s" alignItems="center">
             <EuiFlexItem data-test-subj="PackagePoliciesTableName" grow={false}>
@@ -278,10 +291,67 @@ export const PackagePoliciesTable: React.FunctionComponent<Props> = ({
           );
         },
       },
+      {
+        field: 'output_id',
+        name: i18n.translate('xpack.fleet.policyDetails.packagePoliciesTable.outputColumnTitle', {
+          defaultMessage: 'Output',
+        }),
+        render: (outputId: InMemoryPackagePolicy['output_id']) => {
+          if (isOutputsLoading) {
+            return null;
+          }
+          if (outputId) {
+            return <EuiBadge color="hollow">{outputNamesById[outputId] || outputId}</EuiBadge>;
+          }
+          if (agentPolicy.data_output_id) {
+            return (
+              <>
+                <EuiBadge color="default">
+                  {outputNamesById[agentPolicy.data_output_id] || agentPolicy.data_output_id}
+                </EuiBadge>
+                &nbsp;
+                <EuiIconTip
+                  content={i18n.translate(
+                    'xpack.fleet.policyDetails.packagePoliciesTable.outputFromParentPolicyText',
+                    {
+                      defaultMessage: 'Output defined in parent agent policy',
+                    }
+                  )}
+                  position="right"
+                  type="iInCircle"
+                  color="subdued"
+                />
+              </>
+            );
+          }
+          if (defaultOutputData) {
+            return (
+              <>
+                <EuiBadge color="default">
+                  {outputNamesById[defaultOutputData.id] || defaultOutputData.id}
+                </EuiBadge>
+                &nbsp;
+                <EuiIconTip
+                  content={i18n.translate(
+                    'xpack.fleet.policyDetails.packagePoliciesTable.outputFromFleetSettingsText',
+                    {
+                      defaultMessage: 'Output defined in Fleet settings',
+                    }
+                  )}
+                  position="right"
+                  type="iInCircle"
+                  color="subdued"
+                />
+              </>
+            );
+          }
+        },
+      },
       {
         name: i18n.translate('xpack.fleet.policyDetails.packagePoliciesTable.actionsColumnTitle', {
           defaultMessage: 'Actions',
         }),
+        width: '70px',
         actions: [
           {
             render: (packagePolicy: InMemoryPackagePolicy) => {
@@ -309,8 +379,11 @@ export const PackagePoliciesTable: React.FunctionComponent<Props> = ({
       agentPolicy,
       canUseMultipleAgentPolicies,
       canReadAgentPolicies,
-      canWriteIntegrationPolicies,
       getSharedPoliciesNumber,
+      canWriteIntegrationPolicies,
+      isOutputsLoading,
+      defaultOutputData,
+      outputNamesById,
     ]
   );